Patent Publication Number: US-2022220729-A1

Title: Enclosure Component Shear Seal Systems

Description:
CROSS-REFERENCES TO RELATED APPLICATIONS 
     This application is a continuation application of PCT Patent Application No. PCT/US21/056415, filed Oct. 25, 2021 and a continuation-in-part application of U.S. Nonprovisional patent application Ser. No. 17/504,883, filed Oct. 19, 2021, each of which claims the benefit of U.S. Provisional Application No. 63/136,268 filed Jan. 12, 2021, U.S. Provisional Application No. 63/181,447, filed Apr. 29, 2021, and U.S. Provisional Application No. 63/196,400 filed Jun. 3, 2021; and this application claims the benefit of U.S. Provisional Application No. 63/136,268 filed Jan. 12, 2021, U.S. Provisional Application No. 63/181,447, filed Apr. 29, 2021, and U.S. Provisional Application No. 63/196,400 filed Jun. 3, 2021. 
    
    
     BACKGROUND OF THE INVENTION 
     Field of the Invention 
     The inventions herein relate to structures, such as dwellings and other buildings for residential occupancy, commercial occupancy and/or material storage, and to components for such structures. 
     Description of the Related Art 
     In the field of residential housing, the traditional technique for building homes is referred to as “stick-built” construction, where a builder constructs housing at the intended location using in substantial part raw materials such as wooden boards, plywood panels, and steel columns. The materials are assembled piece by piece over a previously prepared portion of ground, for example, a poured concrete slab or a poured concrete or cinder block foundation. 
     There have been a variety of efforts to depart from the conventional construction techniques used to create dwellings, as well as commercial spaces and like. One of the alternatives to stick-built construction is very generally referred to as modular housing. As opposed to stick-built construction, where the structure is built on-site, a modular house is constructed in a factory and then shipped to the site, often by means of a tractor-trailer. 
     Such modular housing often exceeds in size normally-permitted legal limits for road transport. For example, in the United States the maximum permitted dimensions for road transport are in general 102 inches (259.1 cm) in width, 13.5 feet (4.11 m) in height and 65 to 75 feet (19.81 to 22.86 m) in length. Thus, in many cases transporting a modular house from factory to site requires oversize load permits, which may impose restrictions on when transport can be undertaken and what routes can be utilized. Oversize road regulations may also require the use of an escort car and a trailing car as well. All of these requirements and restrictions inevitably increase the cost of the modular housing. 
     Significant advancements in the construction of dwellings and commercial space are described in U.S. Pat. Nos. 8,474,194, 8,733,029, 10,688,906, 10,829,029 and 10,926,689. In one aspect, these patents pertain to fabricating wall, floor and roof components in a factory that are folded together into a compact shipping module, and which are then transported to the intended location and unfolded to yield a fully formed structure. 
     SUMMARY OF THE INVENTION 
     The present inventions are directed to enclosure component sealing systems for foldable, transportable building structures. These foldable, transportable structures can include a number of wall, floor and roof components with exterior edges abutting top, bottom or interior faces of other wall, floor and roof components. In addition, these foldable, transportable structures can include a number of partitioned wall, floor and roof components with abutting interior edges when the enclosure components are fully unfolded. 
     The present inventions describe advancements in sealing the exterior edges and the abutting portions of the wall, floor and roof components to limit or prevent the ingress of rain water, noise and outside air into the interior of the structure. The present inventions include sealing systems that in general terms utilize two enclosure component sealing structures in pressing contact either when the building structure is manufactured, or later when the structure is transported to its final location and fully unfolded. 
     In one aspect, the present inventions are directed to a sealing system for abutting regions of enclosure components for a building structure, which comprises a planar elongate first seal plate having a first interior face and an opposed first exterior face, with the first interior face being adapted to be secured to a first enclosure component, and the first exterior face defining an elongate seal slot. The first seal plate is adapted to mate with a planar elongate second seal plate by lateral movement of a second exterior face of the second seal plate relative to the first exterior face of the first seal plate, and there is provided an elongate resilient shear seal positioned in the elongate seal slot. The elongate resilient shear seal has a hollow seal chamber and comprises an elongate base, an elongate first seal wall joined to the base, and an opposed elongate second seal wall joined to the base, with the first and second seal walls extending away from the base in a diverging relationship. An elongate seal support is joined to an end of the first seal wall distal from the base, an elongate planar seal closure is joined to an end of the second seal wall distal from the base, and an elongate planar cantilevered seal surface is joined to an end of the seal closure distal from the second seal wall at a shear seal junction. The cantilevered seal surface is oriented at an upward angle β relative to the base and terminates at a free end, and an end of the seal support distal from the first seal wall is joined either to the shear seal junction, or to the elongate planar cantilevered seal surface proximate to the shear seal junction, thereby defining the hollow seal chamber. 
     In another aspect, the present inventions are directed to a seal assembly comprising a planar elongate first seal plate and a planar elongate second seal plate. The first seal plate has a first interior face, an opposed first exterior face, a first edge, an opposed second edge and a first thickness, with the first interior face being adapted to be secured to a first enclosure component. An elongate first seal slot is defined in the first exterior face of the first seal plate proximate the first edge, and the first exterior face is inclined at an angle γ relative to the first interior face so that the first thickness decreases with increasing distance from the first edge. The planar elongate second seal plate has a second interior face, an opposed second exterior face, a third edge, an opposed fourth edge and a second thickness, the second interior face being adapted to be secured to a second enclosure component. An elongate second seal slot is defined in the second exterior face of the second seal plate proximate the fourth edge, and the second exterior face is inclined at the angle γ relative to the second interior face so that the second thickness increases with increasing distance from the third edge. The first seal plate is adapted to mate with the second seal plate by lateral movement of the first exterior face relative to the second exterior face so that when mated, the first exterior face is in proximity with the second exterior face, with the first edge proximate to the third edge and the second edge proximate to the fourth edge. 
     These and other aspects of the present inventions are described in the drawings annexed hereto, and in the description of the preferred embodiments and claims set forth below. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view of a structure prepared in accordance with the present inventions. 
         FIG. 2  is a top schematic view of the structure shown in  FIG. 1 . 
         FIG. 3  is an end view of a shipping module from which is formed the finished structure shown in  FIG. 1 . 
         FIGS. 4 and 5  are partial cutaway views of a finished structure in accordance with the present inventions, depicting in greater detail aspects of the roof, wall and floor components. 
         FIG. 6  is a schematic perspective view depicting the exterior edge reinforcement for a wall component in accordance with the present inventions. 
         FIG. 7  is an exploded cross-sectional view of a multi-layered, laminate design for use in the enclosure components of the present inventions. 
         FIG. 8A  is an exploded perspective view of a finished structure in accordance with the present inventions, depicting suitable locations for the sealing systems of the present inventions on the horizontally positioned enclosure components, and  FIG. 8B  is an exploded perspective view of a finished structure in accordance with the present inventions, depicting correspondingly suitable locations for the sealing systems of the present inventions on the vertically positioned enclosure components 
         FIG. 9  is a side view of a roof portion in accordance with the present inventions. 
         FIG. 10  is a schematic side view of an I-beam end cap in accordance with the present inventions. 
         FIG. 11A  is a section view of a compression seal in accordance with the present inventions, and  FIG. 11B  is a side view of a roof bottom plate with a compression seal provided in one of its two seal slots in accordance with the present inventions. 
         FIG. 12  is an exploded side view of the junction between a wall vertical interlock and a wall end cap in accordance with the present inventions, and  FIG. 13  is an exploded side view of the junction between a roof bottom plate and wall end cap in accordance with the present inventions. 
         FIG. 14  is an exploded side view of the junction between an I-beam interlock A and an I-beam interlock B in accordance with the present inventions. 
         FIG. 15  is an exploded side view of the junction between a floor top plate and a wall end cap in accordance with the present inventions. 
         FIG. 16A  is a section view of a shear seal in accordance with the present inventions, and  FIG. 16B  is a side view of a wall end interlock with a shear seal provided in its seal slot in accordance with the present inventions. 
         FIG. 17  is an exploded side view of the junction between a floor top interlock and a wall end interlock A in accordance with the present inventions. 
         FIG. 18  is an exploded side view of the junction between a wall end interlock B and a wall end interlock A in accordance with the present inventions. 
         FIG. 19A  is a side view of the junction between a perimeter board and an I-beam end lock in accordance with the present inventions, and  FIG. 19B  is a depiction of the positioning of an I-beam end cap, a floor top plate, a wall end cap and a perimeter board in accordance with the present inventions. 
         FIG. 20  is a side view of the junction between a roof skirt board and an I-beam end lock in accordance with the present inventions. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     An embodiment of the foldable, transportable structure  150  in which the inventions disclosed herein can be implemented is depicted in  FIGS. 1 through 5 . When fully unfolded, as exemplified by  FIG. 1 , structure  150  has a rectangular shape made of three types of generally planar and rectangular enclosure components  155 , the three types of enclosure components  155  consisting of a wall component  200 , a floor component  300 , and a roof component  400 . As shown in  FIGS. 1 and 2 , the perimeter of structure  150  is defined by first longitudinal edge  106 , first transverse edge  108 , second longitudinal edge  116  and second transverse edge  110 . For convenience, a direction parallel to first longitudinal edge  106  and second longitudinal edge  116  may be referred to as the “longitudinal” direction, a direction parallel to first transverse edge  108  and second transverse edge  110  may be referred to as the “transverse” direction; and a direction parallel to the vertical direction in  FIG. 1  may be referred to as the “vertical” direction. Structure  150  as shown has one floor component  300 , one roof component  400  and four wall components  200 ; although it should be understood that the present inventions are applicable to structures having other configurations as well. 
     Enclosure components  155  (wall component  200 , floor component  300  and roof component  400 ) can be fabricated and dimensioned as described herein and positioned together to form a shipping module  100 , shown end-on in  FIG. 3 . The enclosure components  155  are dimensioned so that the shipping module  100  is within U.S. federal highway dimensional restrictions. As a result, shipping module  100  can be transported over a limited access highway more easily, and with appropriate trailering equipment, transported without the need for oversize permits. Thus, the basic components of structure  150  can be manufactured in a factory, positioned together to form the shipping module  100 , and the modules  100  can be transported to the desired site for the structure, where they can be readily assembled, as described herein. 
     Enclosure Component ( 155 ): General Description 
     The enclosure components  155  of the present invention include a number of shared design features that are described below. 
     A. Laminate Structure Design 
     Enclosure components  155  can be fabricated using a multi-layered, laminate design. A particular laminate design that can be used to fabricate enclosure components  155  comprises a first structural layer  210 , a foam panel layer  213 , a second structural layer  215  and a protective layer  218 , as shown in  FIG. 7  and described further below. 
     In particular, first structural layer  210  is provided in the embodiment of enclosure component  155  that is depicted in  FIG. 7 . First structural layer  210  in the embodiment shown comprises a sheet metal layer  205 , which can be for example galvanized steel or aluminum. Sheet metal layer  205  is made from a plurality of generally planar rectangular metal sheets  206  positioned adjacent to each other to generally cover the full area of the intended enclosure component  155 . 
     Referring again to  FIG. 7 , there is next provided in the depicted embodiment of enclosure component  155  a foam panel layer  213 , comprising a plurality of generally planar rectangular foam panels  214  collectively presenting a first face  211  and a second opposing face  212 . Foam panels  214  are made for example of expanded polystyrene (EPS) foam. A number of these foam panels  214  are positioned adjacent to each other and superposed first face-down on first structural layer  210  to generally cover the full area of the intended enclosure component  155 . The foam panels  214  of foam panel layer  213  preferably are fastened to the metal sheets  206  of first structural layer  210  using a suitable adhesive, preferably a polyurethane based construction adhesive. Foam panel layer  213  can include exterior edge reinforcement and interior edge reinforcement, as described further below. 
     In the embodiment of the enclosure component  155  depicted in  FIG. 7 , there is next provided a second structural layer  215 , having a first face that is positioned on the second opposing face  212  of foam panels  214  (the face distal from first structural layer  210 ), and also having a second opposing face. Second structural layer  215  in the embodiment shown comprises a sheet metal layer  216 , which can be for example galvanized steel or aluminum. Sheet metal layer  216  is made from a plurality of generally planar rectangular metal sheets  217  positioned adjacent to each other and superposed first face-down on the second opposing face of foam panel layer  213  to generally cover the full area of the intended enclosure component  155 . The metal sheets  217  of second structural layer  215  preferably are fastened to foam panel layer  213  using a suitable adhesive, preferably a polyurethane based construction adhesive. 
     In the embodiment of the enclosure component  155  depicted in  FIG. 7 , there is optionally next provided a protective layer  218 , having a first face that is positioned on the second opposing face of second structural layer  215  (the face distal from foam panel layer  213 ), and also having a second opposing face. Optional protective layer  218  in the embodiment shown comprises a plurality of rectangular structural building panels  219  principally comprising an inorganic composition of relatively high strength, such as magnesium oxide (MgO). The structural building panels  219  are positioned adjacent to each other and superposed first face-down on the second opposing face of second structural layer  215  to generally cover the full area of the intended enclosure component  155 . The building panels  219  of protective layer  218  preferably are fastened to second structural layer  215  using a suitable adhesive, preferably a polyurethane based construction adhesive. Protective layer  218  can be used if desired to impart a degree of fire resistance to the enclosure component  155 , as well as to provide a pleasing texture and/or feel. 
     Other embodiments of multi-layered, laminate designs that can be used to fabricate the enclosure components  155  of the present invention, are described in U.S. Nonprovisional patent application Ser. No. 16/786,130, entitled “Foldable Building Structures with Utility Channels and Laminate Enclosures,” filed on Feb. 10, 2020, which has issued as U.S. Pat. No. 11,118,344. The contents of that U.S. Nonprovisional patent application Ser. No. 16/786,130, entitled “Foldable Building Structures with Utility Channels and Laminate Enclosures” and filed on Feb. 10, 2020 are incorporated by reference as if fully set forth herein, particularly including the multi-layered, laminate designs described for example at ¶¶0034-57 and depicted in  FIGS. 4A-4D  thereof. 
     B. Enclosure Component Exterior Edge Reinforcement 
     The exterior edges of each enclosure component  155  (i.e., the edges that define the perimeter of enclosure component  155 ) can be provided with exterior edge reinforcement, as desired. Exterior edge reinforcement generally comprises an elongate rigid member which can protect the foam panel material of foam panel layer  213  that would otherwise be exposed at the exterior edges of enclosure components  155 . Exterior edge reinforcement can be fabricated from one or more of laminated strand lumber board, wooden board, C-channel extruded aluminum or steel, or the like, and is generally secured to the exterior edges of enclosure component  155  with fasteners, such as screw or nail fasteners, and/or adhesive. 
     C. Enclosure Component Partitioning 
     Enclosure components  155  in certain instances are partitioned into enclosure component portions to facilitate forming a compact shipping module  100 . In those instances where an enclosure component  155  is partitioned into enclosure component portions, any exterior edge reinforcement on the exterior edges defining the perimeter of the enclosure component is segmented as necessary between or among the portions. 
     The enclosure component portions can be joined by hinge structures or mechanisms to permit the enclosure component portions to be “folded” and thereby contribute to forming a compact shipping module  100 . 
     D. Enclosure Component Interior Edge Reinforcement 
     An enclosure component  155  partitioned into enclosure component portions will have interior edges. There will be two adjacent interior edges for each adjacent pair of enclosure component portions. Such interior edges can be provided with interior edge reinforcement. Similar to exterior edge reinforcement, such interior edge reinforcement generally comprises an elongate, rigid member which can protect the foam panel material of foam panel layer  213  which that would otherwise be exposed at the interior edges of enclosure components  155 . Interior edge reinforcement can be fabricated from one or more of laminated strand lumber board, wooden board, C-channel extruded aluminum or steel, or the like, and is generally secured to the interior edges of enclosure component  155  with fasteners, such as screw or nail fasteners, and/or adhesive. 
     E. Enclosure Component Load Transfer 
     In the case of enclosure components  155 , it is necessary to transfer the loads imposed on their surfaces to their exterior edges, where those loads can be transferred either to or through adjoining walls, or to the building foundation. For enclosure components  155  that are horizontally oriented when in use (floor component  300  and roof component  400 ), such loads include the weight of equipment, furniture and people borne by their surfaces, as well as vertical seismic loads. For enclosure components that are vertically oriented when in use (wall component  200 ), such loads include those arising from meteorological conditions (hurricanes, tornadoes, etc.) and human action (vehicle and other object impacts). 
     For this purpose, multi-layered, laminate designs as shown in  FIG. 7  will function to transfer the loads described above. To add additional load transfer capability, structural members, such as beams and/or joists, can be utilized within the perimeter of the enclosure components  155 , as is deemed appropriate to the specific design of structure  150  and the particular enclosure component  155 , to assist in the transfer of loads to the exterior edges. Particular embodiments of such structural members, which also incorporate hinge structures, are described in U.S. Provisional Patent Application No. 63/188,101, filed May 13, 2021, entitled “Folding Beam Systems” and having the same inventors as this disclosure. 
     Further design details of wall component  200 , floor component  300 , and roof component  400  are provided in the sections following. 
     Wall Component ( 200 ) 
     Typically, a structure  150  will utilize four wall components  200 , with each wall component  200  corresponding to an entire wall of structure  150 . 
     A. General Description 
     Wall component  200  has a generally rectangular perimeter. As shown in  FIG. 1 , wall components  200  have plural apertures, specifically a door aperture  202 , which has a door frame and door assembly, and plural window apertures  204 , each of which has a window frame and a window assembly. The height and length of wall components  200  can vary in accordance with design preference, subject as desired to the dimensional restrictions applicable to transport, described above. In this disclosure, structure  150  is fashioned with all sides of equal length; accordingly, its first and second longitudinal edges  106  and  116 , and its first and second transverse edges  108  and  110 , are all of equal length. It should be understood however, that the inventions described herein are applicable to structures having other dimensions, such as where two opposing wall components  200  are longer than the other two opposing wall components  200 . 
     As indicated above, wall components  200  of the present inventions can utilize a multi-layered, laminate design. In the embodiment depicted in  FIGS. 1 through 6 , wall component  200  utilizes the multi-layered, laminate design shown in  FIG. 7  employing these particular elements: sheet metal layer  205  of first structural layer  210  is 24 gauge galvanized steel approximately 0.022-0.028 inch thick, the foam panels  214  of foam panel layer  213  are EPS foam approximately 5.68 inches thick, the sheet metal layer  216  of second structural layer  215  is 24 gauge galvanized steel approximately 0.022-0.028 inch thick, and the building panels  219  of protective layer  218  are MgO board approximately 0.25 inch (6 mm) thick. 
     The perimeter of each wall component  200  is generally provided with exterior edge reinforcement. As exemplified by wall component  200  shown in  FIG. 6 , the exterior edge reinforcement for wall component  200  is a floor plate  220  along the bottom horizontal edge, a ceiling plate  240  along the top horizontal edge and two end pieces  270  respectively fastened at each vertical edge of wall component  200 . In the case of a wall component  200 , exterior edge reinforcement provides regions for fastening like regions of abutting wall components  200 , roof component  400  and floor component  300 , in addition to protecting the exterior edges of foam panel material. 
     In the embodiment shown in  FIGS. 1 through 6 , the exterior edge reinforcement for wall component  200  provided by floor plate  220 , ceiling plate  240 , and end pieces  270  is fabricated from laminated strand lumber board 5.625″ deep and 1.5″ thick. 
     B. Partitioned Wall Components 
     Referring to  FIG. 2 , structure  150  has two opposing wall components  200 , where one of the two opposing wall components  200  comprises first wall portion  200   s - 1  and second wall portion  200   s - 2 , and the other of the two opposing wall components  200  comprises third wall portion  200   s - 3  and fourth wall portion  200   s - 4 . Each of wall portions  200   s - 1 ,  200   s - 2 ,  200   s - 3  and  200   s - 4  has a generally rectangular planar structure. As shown in  FIG. 2 , the interior vertical edge  192 - 1  of wall portion  200   s - 1  is proximate to a respective interior vertical edge  192 - 2  of wall portion  200   s - 2 , and the interior vertical edge  194 - 3  of wall portion  200   s - 3  is proximate a respective interior vertical wall edge  194 - 4  of wall portion  200   s - 4 . Interior edge reinforcement can be provided at any one or more of vertical edges  192 - 1 ,  192 - 2 ,  194 - 3  and  194 - 4 . In the embodiment shown in  FIGS. 1 through 6 , the interior edge reinforcement provided at vertical edges  192 - 1 ,  192 - 2 ,  194 - 3  and  194 - 4  is fabricated from laminated strand lumber board 5.625″ deep and 1.5″ thick. 
     Referring again to  FIG. 2 , first wall portion  200   s - 1  is fixed in position on floor portion  300   a  proximate to first transverse edge  108 , and third wall portion  200   s - 3  is fixed in position on floor portion  300   a , opposite first wall portion  200   s - 1  and proximate to second transverse edge  110 . First wall portion  200   s - 1  is joined to second wall portion  200   s - 2  with a hinge structure that permits wall portion  200   s - 2  to pivot about vertical axis  192  between a folded position and an unfolded position, and third wall portion  200   s - 3  is joined to fourth wall portion  200   s - 4  with a hinge structure to permit fourth wall portion  200   s - 4  to pivot about vertical axis  194  between a folded position and an unfolded position. 
     Notably, first wall portion  200   s - 1  is longer than third wall portion  200   s - 3  by a distance approximately equal to the thickness of wall component  200 , and second wall portion  200   s - 2  is shorter than third wall portion  200   s - 3  by a distance approximately equal to the thickness of wall component  200 . Furthermore, wall portion  200   s - 1  and wall portion  200   s - 3  are each shorter in length (the dimension in the transverse direction) than the dimension of floor portion  300   a  in the transverse direction. Dimensioning the lengths of wall portions  200   s - 1 ,  200   s - 2 ,  200   s - 3  and  200   s - 4  in this manner permits wall portions  200   s - 2  and  200   s - 4  to nest against each other in an overlapping relationship when in an inwardly folded position. In this regard,  FIG. 2  depicts wall portions  200   s - 2  and  200   s - 4  both in their unfolded positions, where they are labelled  200   s - 2   u  and  200   s   4 - u  respectively, and  FIG. 2  also depicts wall portions  200   s - 2  and  200   s - 4  both in their inwardly folded positions, where they are labelled  200   s - 2   f  and  200   s   4 - f  respectively. When wall portions  200   s - 2  and  200   s - 4  are in their inwardly folded positions ( 200   s - 2   f  and  200   s - 4   f ), they facilitate forming a compact shipping module. When wall portion  200   s - 2  is in its unfolded position ( 200   s - 2   u ), it forms with wall portion  200   s - 1  a wall component  200  proximate first transverse edge  108 , and when wall portion  200   s - 4  is in its unfolded position ( 200   s - 4   u ), it forms with wall portion  200   s - 3  a wall component  200  proximate second transverse edge  110 . 
     The hinge structures referenced above, for securing first wall portion  200   s - 1  to second wall portion  200   s - 2 , and third wall portion  200   s - 3  to fourth wall portion  200   s - 4 , can be surface mounted or recessed, and of a temporary or permanent nature. The provision of interior edge reinforcement, as described above, can provide a region for securing such hinge structures. Suitable hinge structures can be fabricated for example of ferrous or non-ferrous metal, plastic or leather material. 
     C. Unpartitioned Wall Components 
     As compared to the two wall components  200  proximate first and second transverse edges  108  and  110 , which are partitioned into wall portions, the remaining two wall components  200  proximate first and second longitudinal edges  106  and  116  do not comprise plural wall portions, but rather each is a single piece structure. However, one of these wall components  200 , which is sometimes denominated  200 P in this disclosure, and which is located on floor portion  300   b  proximate first longitudinal edge  106 , is pivotally secured to floor portion  300   b  by means of hinge structures to permit wall component  200 P to pivot about horizontal axis  105  shown in  FIG. 3  from a folded position to an unfolded position. Pivotally securing wall component  200 P also facilitates forming a compact shipping module  100 . The remaining wall component  200 , sometimes denominated  200 R in this disclosure, is rigidly secured on floor portion  300   a  proximate second longitudinal edge  116  and abutting the vertical edges of first wall portion  200   s - 1  and third wall portion  200   s - 3  proximate to second longitudinal edge  116 , as shown in  FIG. 2 . 
     The hinge structures referenced above, for securing wall component  200 P to floor portion  300   b , can be surface mounted or recessed, and of a temporary or permanent nature. The provision of exterior edge reinforcement, as described above, can provide a region for securing such hinge structures. Suitable hinge structures can be fabricated for example of ferrous or non-ferrous metal, plastic or leather material. 
     Floor Component ( 300 ) 
     Typically, structure  150  will utilize one floor component  300 ; thus floor component  300  generally is the full floor of structure  150 . 
     A. General Description 
     Floor component  300  has a generally rectangular perimeter.  FIGS. 4 and 5  depict floor component  300  in accordance with the present inventions. The perimeter of floor component  300  is defined by first longitudinal floor edge  117 , first transverse floor edge  120 , second longitudinal floor edge  119  and second transverse floor edge  118 . In particular, (a) first longitudinal floor edge  117 , (b) first transverse floor edge  120 , (c) second longitudinal floor edge  119  and (d) second transverse floor edge  118  generally coincide with (i.e., underlie) (w) first longitudinal edge  106 , (x) first transverse edge  108 , (y) second longitudinal edge  116  and (z) second transverse edge  110 , respectively, of structure  150 . 
     The length and width of floor component  300  can vary in accordance with design preference. In the particular embodiment of structure  150  depicted in  FIGS. 2, 4 and 5 , floor component  300  is approximately 19 feet (5.79 m) by 19 feet (5.79 m). 
     Floor component  300  and its constituent elements are generally designed and dimensioned in thickness and in other respects to accommodate the particular loads to which floor component  300  may be subject. It is preferred that floor component  300  utilize a multi-layered, laminate design, such as that described in connection with  FIG. 7 . In the embodiment shown in  FIGS. 4 and 5 , the bottom-most surface of floor component  300  comprises sheet metal layer  205  of first structural layer  210 , with sheet metal layer  205  being 24 gauge galvanized steel approximately 0.022-0.028 inch thick. Above sheet metal layer  205  there are provided foam panels  214  of foam panel layer  213 . In the embodiment shown in  FIGS. 4 and 5 , foam panels  214  are EPS foam approximately 7.125 inches thick. Above foam panel layer  213  there is provided sheet metal layer  216  of second structural layer  215 , with sheet metal layer  216  being 24 gauge galvanized steel approximately 0.022-0.028 inch thick. Above sheet metal layer  216  of second structural layer  215 , there are provided building panels  219  of protective layer  218 , with building panels  219  being MgO board approximately 0.25 inch (6 mm) thick. 
     The perimeter of each floor component  300  is generally provided with exterior edge reinforcement. As exterior edge reinforcement for the embodiments of floor component  300  shown in  FIGS. 4 and 5 , a first footing beam  320  (visible edge-on in  FIG. 4 ) is positioned at the first longitudinal floor edge  117  of floor component  300 , a second footing beam  320  (visible edge-on in  FIG. 5 ) is positioned at the second transverse floor edge  118  of floor component  300 , a third footing beam  320  (visible edge-on in  FIG. 5 ) is positioned at the first transverse floor edge  120  of floor component  300 , and a fourth footing beam  320  (visible edge-on in  FIG. 4 ) is positioned at the second longitudinal floor edge  119  of floor component  300 . In the case of floor component  300 , the exterior edge reinforcement provided by footing beams  320  assists in resisting vertical loads and transferring such loads to any roof component  400  thereunder and then to underlying wall components  200 , and/or to the foundation of the structure  150 , in addition to protecting the edges of foam panel material of the foam panel layer  213 . 
     In the embodiment shown in  FIGS. 1 through 6 , the exterior edge reinforcement provided by footing beams  420  of floor component  300  is fabricated from laminated strand lumber board 7.125″ deep and 1.5″ thick. 
     B. Floor Partitioning 
     The floor component  300  is partitioned into floor portion  300   a  and floor portion  300   b .  FIG. 2  shows flow portions  300   a  and  300   b  in plan view, and  FIG. 4  shows floor portions  300   a  and  300   b  in section view, edge-on. 
     Each of the floor portions  300   a  and  300   b  is a planar generally rectangular structure, with floor portion  300   a  adjoining floor portion  300   b . Interior edge  301   a  of floor portion  300   a  abuts interior edge  301   b  of floor portion  300   b , as shown in  FIG. 4 . As interior edge reinforcement, a reinforcing board  307  is positioned in floor portion  300   a  adjacent interior edge  301   a , and a reinforcing board is positioned in floor portion  300   b  adjacent interior edge  301   b . Additional structural members, such as beam and/or joists, can be utilized within the perimeter of one or more of floor portions  300   a  and  300   b , as is deemed appropriate to the specific design of structure  150  and floor component  300 , to assist in the transfer of vertical loads to one or more of reinforcing boards  307 . 
     Referring to structure  150  shown in  FIGS. 2 and 4 , floor portion  300   a  is fixed in position relative to first wall portion  200   s - 1 , third wall portion  200   s - 3  and wall component  200   s -R. Floor portion  300   a  is joined with hinge structures to floor portion  300   b , so as to permit floor portion  300   b  to pivot through approximately ninety degrees (90°) of arc about a horizontal axis  305 , located proximate the top surface of floor component  300 , between a fully folded position, where floor portion  300   b  is vertically oriented as shown in  FIG. 3 , and the fully unfolded position shown in  FIGS. 2 and 4 , where floor portion  300   b  is horizontally oriented and co-planar with floor portion  300   a.    
     The hinge structures joining floor portions  300   a  and  300   b  can be surface mounted or recessed, and of a temporary or permanent nature. Suitable hinge structures can be fabricated for example of ferrous or non-ferrous metal, plastic or leather material. The hinge structures joining floor portions  300   a  and  300   b  are adapted to pivot through approximately ninety degrees (90°) of arc. 
     There is provided interior edge reinforcement, reinforcing board  307 , at each of interior edges  301   a  and  301   b , as shown in  FIG. 4 . The interior edge reinforcement provided by reinforcing board  307  at interior edges  301 ,  301   b  can provide a region for mounting hinge structures, in addition to protecting the edges of foam panel material. Reinforcing boards  307  can be made of laminated strand lumber board 7.125″ deep and 1.5″ thick. 
     Roof Component ( 400 ) 
     Typically, structure  150  will utilize one roof component  400 ; thus roof component  400  generally is the full roof of structure  150 . 
     A. General Description 
     Roof component  400  has a generally rectangular perimeter.  FIGS. 1, 4 and 5  depict roof component  400  in accordance with the present inventions. The perimeter of roof component  400  is defined by first longitudinal roof edge  406 , first transverse roof edge  408 , second longitudinal roof edge  416  and second transverse roof edge  410 . In particular, (a) first longitudinal roof edge  406 , (b) first transverse roof edge  408 , (c) second longitudinal roof edge  416  and (d) second transverse roof edge  410  of roof component  400  generally coincide with (i.e., overlie) (w) first longitudinal edge  106 , (x) first transverse edge  108 , (y) second longitudinal edge  116  and (z) second transverse edge  110 , respectively, of structure  150 . 
     The length and width of roof component  400  can vary in accordance with design preference. In the particular embodiment of structure  150  depicted in  FIGS. 1, 4 and 5 , the length and width of roof component  400  approximates the length and width of floor component  300 . 
     Roof component  400  and its constituent elements are generally designed and dimensioned in thickness and in other respects to accommodate the particular loads to which roof component  400  may be subject. It is preferred that roof component  400  utilize a multi-layered, laminate design, such as that described in connection with  FIG. 7 . In the embodiment shown in  FIGS. 4 and 5 , the top-most surface of roof component  400  comprises sheet metal layer  205  of first structural layer  210 , with sheet metal layer  205  being 24 gauge galvanized steel approximately 0.022-0.028 inch thick. Below sheet metal layer  205  there are provided foam panels  214  of foam panel layer  213 , with foam panels  214  in the embodiment shown in  FIGS. 4 and 5  being EPS foam for example approximately 7.125 inches thick. Below foam panel layer  213  there is provided sheet metal layer  216  of second structural layer  215 , with sheet metal layer  216  being 24 gauge galvanized steel approximately 0.022-0.028 inch thick. Below sheet metal layer  216  of second structural layer  215 , there are provided building panels  219  of protective layer  218 , with building panels  219  being MgO board approximately 0.25 inch (6 mm) thick. 
     The perimeter of roof component  400  is generally provided with exterior edge reinforcement. As exterior edge reinforcement for the embodiment of roof component  400  shown in  FIGS. 4 and 5 , a first shoulder beam  435  (visible edge-on in  FIG. 4 ) is positioned at the first longitudinal roof edge  406  of roof component  400 , a second shoulder beam  435  (visible edge-on in  FIG. 5 ) is positioned at the first transverse roof edge  408  of roof component  400 , a third shoulder beam  435  (visible edge-on in  FIG. 5 ) is positioned at the second transverse roof edge  410  of roof component  400 , and a fourth shoulder beam  435  (visible edge-on in  FIG. 4 ) is positioned at the second longitudinal roof edge  416  of roof component  400 . In addition to protecting the exterior edges of foam panel material, the exterior edge reinforcement provided by shoulder beams  435  assists in resisting vertical loads and transferring such loads to lower floors through underlying wall components  200  supporting roof component  400 , and then to the foundation of the structure  150 . Such exterior edge reinforcement can also provide a region for fastening like regions of abutting enclosure components  155  (underlying and any overlying). Shoulder beams  435  of roof component  400  can be fabricated from laminated strand lumber board 7.125″ deep and 1.5″ thick. 
     B. Roof Partitioning 
     The roof component  400  of structure  150  is partitioned into roof portions  400   a ,  400   b  and  400   c .  FIG. 1  shows roof portions  400   a ,  400   b  and  400   c  in perspective view, and  FIG. 4  shows roof portions  400   a ,  400   b  and  400   c  in section view, edge-on. 
     Each of the roof portions  400   a ,  400   b  and  400   c  is a planar generally rectangular structure, with roof portion  400   a  adjoining roof portion  400   b , and roof portion  400   b  adjoining roof portion  400   c . Interior edge  412   c  of roof component  400   c  abuts a first interior edge  412   b  of roof component  400   b , as shown in  FIG. 4 . For interior edge reinforcement, a reinforcing board  437  is positioned adjacent interior edge  412   c , and a reinforcing board  437  is positioned against first interior edge  412   b . Interior edge  412   a  of roof portion  400   a  abuts a second interior edge  412   b  of roof portion  400   b , as shown in  FIG. 4 . For interior edge reinforcement, a reinforcing board  437  is positioned adjacent interior edge  412   a , and a reinforcing board  437  is positioned against second interior edge  412   b . Additional structural members, such as beams and/or joists, can be utilized within the perimeter of one or more of roof portions  400   a ,  400   b  and  400   c , as is deemed appropriate to the specific design of structure  150  and roof component  400 , to assist in the transfer of vertical loads to one or more shoulder beams  435 . 
     Referring to structure  150  shown in  FIG. 4 , roof portion  400   a  is fixed in position relative to first wall portion  200   s - 1 , third wall portion  200   s - 3  and wall component  200 R. Roof portion  400   a  is joined to roof portion  400   b  with hinge structures provided between interior edge  412   a  of roof portion  400   a  and second interior edge  412   b  of roof portion  400   b . Such hinge structures are adapted to permit roof portion  400   b  to pivot through up to one hundred and eighty degrees (180°) of arc about a horizontal axis  405   a , located proximate the top of roof component  400  and shown in  FIG. 4 , between the fully folded position shown in  FIG. 3 , where roof portion  400   b  lies flat against roof portion  400   a , and the fully unfolded position shown in  FIG. 4 . 
     In turn, roof portion  400   b  is joined to roof portion  400   c  with hinge structures provided between first interior edge  412   b  of roof portion  400   b  and interior edge  412   c  of roof portion  400   c . Such hinge structures are adapted to permit roof portion  400   c  to pivot through up to one hundred and eighty degrees (180°) of arc about a horizontal axis  405   b , located proximate the bottom of roof component  400  and shown in  FIG. 4 , between the folded position shown in  FIG. 3 , where roof portion  400   c  lies flat against roof portion  400   b  (when roof portion  400   b  is positioned to lie flat against roof portion  400   a ), and the fully unfolded position shown in  FIG. 4 . 
     The hinge structures joining roof portions  400   a ,  400   b  and  400   c  can be surface mounted or recessed, and of a temporary or permanent nature. Suitable hinge structures can be fabricated for example of ferrous or non-ferrous metal, plastic or leather material. The interior edge reinforcement provided by reinforcing boards  437  of roof portions  400   a ,  400   b  and  400   c  can provide a region for mounting hinge structures, in addition to protecting the edges of foam panel material. Reinforcing boards  437  can be fabricated from laminated strand lumber board 7.125″ deep and 1.5″ thick. 
     Enclosure Component Sealing Systems 
     Structure  150  can utilize the enclosure component sealing systems described below to limit or prevent the ingress of rain water, noise and outside air into the interior of structure  150 . 
     A. General Description 
     The enclosure component sealing systems for structure  150  utilize the sealing structures described below. Except for I-beam end cap  221 , which functions to seal the edges of select enclosure components  155 , the enclosure component sealing systems comprise in general terms two enclosure component sealing structures, paired in in pressing contact in different combinations, to seal the junctions between different regions of the enclosure components  155  found in structure  150 . These junctions consist of either two interior edges of adjacent enclosure component portions, positioned edge-to-edge when structure  150  is unfolded, or an exterior edge of an enclosure component  155  which abuts an interior surface of another enclosure component  155 . Where an enclosure component sealing structure is positioned on an interior or exterior edge of an enclosure component  155 , there can respectively be provided interior edge reinforcement or exterior edge reinforcement between the sealing structure and the respective interior or exterior edge of the foam panel layer  213  in the case where the multi-layered, laminate design depicted in  FIG. 7  is utilized (such that the enclosure component sealing structure is positioned proximate to the interior or exterior edge, as the case may be, of the foam panel layer  213 ). The specific enclosure component sealing structures described below are I-beam end cap  221 ; wall vertical interlock  245 ; wall end cap  246 ; I-beam interlock A  250 ; I-beam interlock B  251 ; floor top plate  252 ; roof bottom plate  255 ; floor top interlock  261 ; wall end interlock A  262 ; and wall end interlock B  263 . Excepting I-beam end cap  221 , each of the foregoing enclosure component sealing structures utilizes either two or more compression seals  230 , or one shear seal  260 , which are also described below. Exemplary placements of the enclosure component sealing structures described herein are found in Subsections B. through J. below and also in the Section below entitled “Enclosure Component Sealing Structure Exemplary Placements”. 
     The current inventions include two closure boards, namely perimeter board  310  and roof skirt board  280 . These closure boards, which are described below, are utilized in conjunction with I-beam end cap  221  to provide additional sealing, as well as to realize additional benefits. 
     B. I-Beam End Cap ( 221 ) 
     I-beam end cap  221 , shown in cross-section in  FIG. 10 , is a rigid elongate member that is fastened to the periphery of select enclosure components  155 , preferably the exterior edges of floor component  300  and roof component  400 . I-beam end cap  221  constitutes an edge seal that performs a sealing function against water ingress into and environmental exposure of the edge of the enclosure component  155  to which it is secured, and imparts impact resistance to that edge. 
       FIG. 10  shows an exemplary installation of I-beam end cap  221  secured to the edge of a schematic representation of floor portion  300   a . In particular, I-beam end cap  221  has an elongate seal plate  223  with seal plate  223  having an elongate interior face  226  and an opposing elongate planar exterior face  227 . I-beam end cap  221  has a length and width the same, or substantially the same, as the length and width of the exterior edge of floor portion  300   a , so as to cover the entirety, or substantially the entirety, of the exterior edge of floor portion  300   a.    
     At the mid-point of the interior face  226  of seal plate  223 , there is provided an elongate key  222 , which is rectangular in cross section (as shown in  FIG. 10 ), and has a length the same, or substantially the same, as the length of I-beam end cap  221 . Key  222  is received in a corresponding slot formed in the exterior edge reinforcement positioned on the exterior edge of the enclosure component  155  to which I-beam end cap  221  is secured. Thus for example,  FIG. 9  depicts key  222  of an I-beam end cap  221  received in slot  422  of a shoulder beam  435  of roof portion  400   a . Each of the top and bottom edges of I-beam end cap  221  define locating slots  229 . In the case where the enclosure component  155  utilizes the enclosure component laminate design shown in  FIG. 7 , locating slots  229  receive the edge portions  207  of metal sheets  206  and  217  (of sheet metal layers  205  and  216  respectively), bent down at a ninety degree (90°) angle, as shown in  FIG. 9 . 
     Still referring to  FIG. 10 , the exterior face  227  of seal plate  223  of I-beam end cap  221  includes an elongate accessory slot  224 , which is rectangular in cross section and has a length the same, or substantially the same, as the length of the exterior face  227  of I-beam end cap  221 . The exterior face  227  further includes a plurality of elongate fastener locating grooves  225 , each of which has a length the same, or substantially the same, as the length of seal plate  223 . I-beam end cap  221  can be secured to an exterior edge of an enclosure component  155 , such as the roof portion  400   a  shown in  FIG. 9  and the floor portion  300   a  shown in  FIG. 10 , for example by adhesive applied to interior face  226 , or by fasteners, such as screw or nail fasteners, spaced apart along the length of I-beam end cap  221  and driven through the exterior face  227 , or by utilizing a combination of adhesive and fasteners. Locating grooves  225  assist in accurate positioning of such fasteners. 
     C. Compression Seal ( 230 ) 
     A number of the enclosure component sealing systems described herein and utilized in structure  150  include a compression seal system. An element of that compression seal system is a compression seal  230 . 
     Compression seal  230 , which is shown in cross-section in  FIG. 11A , is an elongate member having in cross-section an elongate base  231  with an elongate arched portion  232  that is flanked by two elongate winglets  233 . At the intersection of the arched portion  232  of base  231  and each of the winglets  233 , there are provided two opposed elongate seal walls  234 , joined to and extending away from base  231  in a diverging relationship at a divergence angle θ, where θ&lt;180°, for example θ&lt;90° or in the range of 40°&lt;θ&lt;50°. It is most preferred that θ be the same, or nearly so, as the divergence angle E of the slot walls  244  described below. Thus as shown in  FIG. 11A , the ends of the seal walls  234  distal from base  231  are further apart than the ends of the seal walls proximate to base  231 . 
     At the ends of the seal walls  234  distal from base  231 , each seal wall  234  is joined to an elongate arcuate buttress  235 . The end of each arcuate buttress  235 , distal from the seal wall  234  to which it is joined, is in turn joined to a respective planar elongate seal surface  236 ; thus there are two planar seal surfaces  236  in compression seal  230 . The planar seal surfaces  236  extend away from the seal walls  234  in a converging relationship at a convergence angle δ, where δ&lt;180°, for example 90°. Thus the ends of seal surfaces  236  distal from arcuate buttresses  235  are closer together than the ends of seal surfaces  236  proximate to arcuate buttresses  235 . The ends of seal surfaces  236  distal from arcuate buttresses  235  are joined by an elongate seal closure  237 . The base  231 , seal walls  234 , arcuate buttresses  235 , seal surfaces  236  and seal closure  237  thereby define a hollow elongate seal chamber  238 , as shown in  FIG. 11A . Seal closure  237  is curved in shape toward seal chamber  238 , such as to assume a cupped appearance. 
     Seal  230  is intended to be received in an elongate seal slot  240 , shown for example in  FIG. 11B . Slot  240  in general has a dovetail shape, with an elongate planar floor  241  flanked by two elongate lateral grooves  242 , and with an elongate planar slot wall  244  abutting and extending from each groove  242  toward an elongate shoulder  243  at the surface of the slot  240 . Thus there are two opposed shoulders  243  in seal slot  240 . The planar slot walls  244  extend away from grooves  242  in a diverging relationship at a divergence angle ε, where ε&lt;1800 (for example ε&lt;900 or in the range of 40°&lt;ε&lt;50°), such that the edges of slot walls  244  coincident with shoulders  243  are further apart than the edges of slot walls  244  abutting grooves  242 . Compression seal  230  is dimensioned to snugly fit within slot  240 , as shown in  FIG. 11B , such that winglets  233  are received in grooves  242  and the arched portion  232  of base  231  is compressed sufficiently to provide a resilient force that urges winglets  233  into grooves  242  and causes seal  230  to be retained in its proper position in slot  240  during fabrication and following fabrication of the enclosure component  155 . 
     When two enclosure components  155  on which are mounted two paired enclosure component sealing structures, one of which bears a compression seal  230 , are appropriately positioned and pressed together, compression seal  230  will be squeezed against the planar exterior face  227  of the opposed seal plate  223 , which causes seal closure  237  and arcuate buttresses  235  to be urged into seal chamber  238 . This permits the two planar exterior faces  227  of the pressed-together seal plates  223  of the paired sealing structures to come into full contact. At the same time, arcuate buttresses  235  rotate down and seal surfaces  236  are urged into a generally coplanar relationship (with arcuate buttresses  238  functioning as hinges) with the opposing planar exterior face  227  pressing against it, to create two lines of sealing. 
     Compression seal  230  can be fabricated from a resilient material, such as rubber or plastic, for example polyurethane. Particular embodiments of enclosure component sealing structures utilizing the foregoing compression sealing system are described below. 
     D. Wall Vertical Interlock ( 245 ), Wall End Cap ( 246 ) Sealing System 
       FIG. 12  depicts in exploded form the junction between a wall vertical interlock  245  and a wall end cap  246 . The particular junction is shown for illustrative purposes between wall portion  200   s - 1  and  200   s - 2 , with wall vertical interlock  245  positioned on the interior vertical edge of wall portion  200   s - 2  (interior vertical edge  192 - 2  shown in  FIG. 2 ) and wall end cap  246  positioned on the interior vertical edge of wall portion  200   s - 1  (interior vertical edge  192 - 1  shown in  FIG. 2 ). In structure  150 , wall vertical interlock  245  and wall end cap  246  shown in  FIG. 12  are vertically-oriented. 
     In particular, wall vertical interlock  245  is a rigid elongate member that has an elongate seal plate  223  with an elongate interior face  226  and an opposing elongate planar exterior face  227 . The exterior face  227  preferably is hard and smooth to provide a good sealing surface. Seal plate  223  has a length and width the same, or substantially the same, as the length and width of the interior edge of wall portion  200   s - 2 , so as to cover the entirety, or substantially the entirety, of that interior edge of wall portion  200   s - 2 . 
     As shown in  FIG. 12 , at the mid-point of the interior face  226  of wall vertical interlock  245  there is provided an elongate key  222 , which is rectangular in cross section has a length the same, or substantially the same, as the length of seal plate  223 . Key  222  is received in a corresponding elongate slot formed in the interior edge reinforcement positioned on the interior vertical edge of wall portion  200   s - 2 , to which wall vertical interlock  245  is secured. Each of the top and bottom edges of wall vertical interlock  245  define elongate locating slots  229  for receiving the edge portions of sheet metal layers  205  and  216 , when bent down at a ninety degree (90°) angle. In addition, the edge of one of the slots  229  abutting the interior face  226  of wall vertical interlock  245  is terminated an inset distance “I” from the opposing edge of that slot, where I is the thickness of the protective layer  218 , such as magnesium oxide (MgO) board. 
     Still referring to  FIG. 12 , at the mid-point of the exterior face  227  of seal plate  223  of wall vertical interlock  245  there is provided an elongate interlock slot  228 , which is rectangular in cross-section and has a length the same, or substantially the same, as the length of the exterior face  227  of wall vertical interlock  245 . Two elongate seal slots  240  are defined on the exterior face  227  of wall vertical interlock  245 , one above interlock slot  228  and the other below interlock slot  228 , as shown in  FIG. 12 . Each slot  240  has a length the same, or substantially the same, as the length of wall vertical interlock  245 . 
     Wall vertical interlock  245  can be secured to the vertical edge of wall portion  200   s - 2  shown in  FIG. 12  for example by adhesive applied to interior face  226 , or by fasteners, such as screw or nail fasteners, spaced apart along the length of wall vertical interlock  245  and driven through the exterior face  227 , or by utilizing a combination of adhesive and fasteners. 
       FIG. 12  additionally depicts a wall end cap  246 . Wall end cap  246  shown in  FIG. 12  is a rigid elongate member that is defined by an elongate seal plate  223  having an elongate interior face  226  and an opposing elongate planar exterior face  227 . The exterior face  227  preferably is hard and smooth to provide a good sealing surface. Seal plate  223  has a length and width the same, or substantially the same, as the length and width of the exterior edge of wall portion  200   s - 1 , so as to cover the entirety, or substantially the entirety, of the vertical edge of wall portion  200   s - 1  shown in in  FIG. 12 . 
     At the mid-point of the interior face  226  of wall end cap  246  show in in  FIG. 12  there is provided an elongate key  222 , which is rectangular in cross-section and has a length the same, or substantially the same, as the length of seal plate  223 . Key  222  of wall end cap  246  is received in a corresponding elongate slot formed in the interior edge reinforcement, positioned on the interior vertical edge of wall portion  200   s - 1 , to which wall end cap  246  is secured. Each of the top and bottom edges of wall end cap  246  define elongate locating slots  229  for receiving the edge portions of sheet metal layers  205  and  216 , when bent down at a ninety degree (90°) angle. In addition, the edge of one of the slots  229  abutting the interior face  226  of wall end cap  246  is terminated an inset distance “I” from the opposing edge of that slot, where I is the thickness of the protective layer  218 , such as magnesium oxide (MgO) board. 
     Wall end cap  246  can be secured to the vertical edge of wall portion  200   s - 1  shown in  FIG. 12  for example by adhesive applied to interior face  226 , or by fasteners, such as screw or nail fasteners, spaced apart along the length of wall end cap  246  and driven through the exterior face  227 , or by utilizing a combination of adhesive and fasteners. 
     In  FIG. 12 , wall vertical interlock  245  mates with wall end cap  246 . For this purpose, at the mid-point of the exterior face  227  of seal plate  223  of wall end cap  246  there is provided an elongate interlock key  247 , which is rectangular in cross-section and has a length the same, or substantially the same, as the length of the exterior face  227  of wall end cap  246 . Interlock key  247  mates with interlock slot  228  when wall vertical interlock  245  and wall end cap  246  are pressed together. Additionally, the two edges of wall end cap  246  are provided with elongate coupling ridges  248  which mate with elongate coupling insets  249  located at the edges of wall vertical interlock  245 . Coupling ridges  248  and coupling insets  249  can have the same, or approximately the same, lengths as wall end cap  246  and wall vertical interlock  245  respectively. 
     Prior to mating wall vertical interlock  245  with wall end cap  246 , a compression seal  230  is placed in each of the two seal slots  240  of wall vertical interlock  245 , with each seal  230  having the same, or approximately the same, length as the slot  240  in which it is inserted. When wall vertical interlock  245  with wall end cap  246  are pressed together in a mating relationship, the two compression seals  230  are deformed in the manner described previously to provide four lines of sealing between wall vertical interlock  245  and wall end cap  246 . 
     E. I-Beam Interlock A ( 250 ), I-Beam Interlock B ( 251 ) Sealing System 
       FIG. 14  depicts in exploded form the junction between an I-beam interlock A  250  and an I-beam interlock B  251 , each shown in cross-section. The particular junction is shown for illustrative purposes between roof portion  400   b  and roof portion  400   c , with I-beam interlock A  250  positioned on the interior edge  412   c  of roof portion  400   c , and with I-beam interlock B  251  positioned on first interior edge  412   b  of roof portion  400   b . In structure  150 , I-beam interlock A  250  and I-beam interlock B  251  shown in  FIG. 14  are horizontally-oriented. 
     In particular, I-beam interlock A  250  is a rigid elongate member that is defined by an elongate seal plate  223  having an elongate interior face  226  and an opposing elongate planar exterior face  227 . The exterior face  227  preferably is hard and smooth to provide a good sealing surface. Seal plate  223  has a length and width the same, or substantially the same, as the length and width of the interior edge  412   c  of roof portion  400   c  shown in  FIG. 14 , so as to cover the entirety, or substantially the entirety, of that interior edge. 
     As shown in  FIG. 14 , at the mid-point of the interior face  226  of I-beam interlock A  250  there is provided an elongate key  222 , which has a rectangular cross-section and a length the same, or substantially the same, as the length of I-beam interlock A  250 . Key  222  is received in a corresponding elongate slot formed in the interior edge reinforcement positioned on the horizontal edge of roof portion  400   c , to which I-beam interlock A  250  is secured. Each of the top and bottom edges of I-beam interlock A  250  define elongate locating slots  229  for receiving the edge portions of sheet metal layers  205  and  216 , bent down at a ninety degree (90°) angle. In addition, the edge of one of the slots  229  abutting the interior face  226  of I-beam interlock A  250  is terminated an inset distance “I” from the opposing edge of that slot, where I is the thickness of the protective layer  218 , such as magnesium oxide (MgO) board. 
     Still referring to  FIG. 14 , in the lower half of the exterior face  227  of seal plate  223  of I-beam interlock A  250  there is provided an elongate interlock slot  228 , which has a rectangular cross-section and a length the same, or substantially the same, as the length of the exterior face  227  of I-beam interlock A  250 . Three elongate seal slots  240  are defined on the exterior face  227  of I-beam interlock A  250 , two above interlock slot  228  and one below interlock slot  228 , as shown in  FIG. 14 . Each seal slot  240  has a length the same, or substantially the same, as the length of I-beam interlock A  250 . 
     I-beam interlock A  250  can be secured to the interior edge  412   c  of roof portion  400   c  shown in  FIG. 14  for example by adhesive applied to interior face  226 , or by fasteners, such as screw or nail fasteners, spaced apart along the length of I-beam interlock A  250  and driven through the exterior face  227 , or by utilizing a combination of adhesive and fasteners. 
       FIG. 14  additionally depicts an I-beam interlock B  251 . I-beam interlock B  251  is a rigid elongate member that is defined by an elongate seal plate  223  having an elongate interior face  226  and an opposing elongate planar exterior face  227 . The exterior face  227  preferably is hard and smooth to provide a good sealing surface. Seal plate  223  has a length and width the same, or substantially the same, as the length and width of the first interior edge  412   b  of roof portion  400   b , so as to cover the entirety, or substantially the entirety, of that interior edge. 
     At the mid-point of the interior face  226  of I-beam interlock B  251  shown in in  FIG. 14  there is provided an elongate key  222 , which has a rectangular cross-section and a length the same, or substantially the same, as the length of I-beam interlock B  251 . Key  222  of I-beam interlock B  251  is received in a corresponding elongate slot formed in the exterior edge reinforcement positioned on first interior edge  412   b  of roof portion  400   b , to which I-beam interlock B  251  is secured. Each of the top and bottom edges of I-beam interlock B  251  define elongate locating slots  229  for receiving the edge portions of sheet metal layers  205  and  216 , bent down at a ninety degree (90°) angle. In addition, the edge of one of the slots  229  abutting the interior face  226  of wall end cap  246  is terminated an inset distance “I” from the opposing edge of that slot, where I is the thickness of the protective layer  218 , such as magnesium oxide (MgO) board. 
     I-beam interlock B  251  can be secured to the first interior edge  412   b  of roof portion  400   b  for example by adhesive applied to interior face  226 , or by fasteners, such as screw or nail fasteners, spaced apart along the length of I-beam interlock B  251  and driven through the exterior face  227 , or by utilizing a combination of adhesive and fasteners. 
     In  FIG. 14 , I-beam interlock A  250  mates with I-beam interlock B  251 . For this purpose, in the lower half of the exterior face  227  of seal plate  223  of I-beam interlock B  251  there is provided an elongate interlock key  247 , which has a rectangular cross-section and a length the same, or substantially the same, as the length of I-beam interlock B  251 . Interlock key  247  mates with interlock slot  228  when I-beam interlock A  250  and I-beam interlock B  251  are pressed together. Additionally, the exterior edges of I-beam interlock B  251  are provided with elongate coupling ridges  248  which mate with elongate coupling insets  249  located at the exterior edges of I-beam interlock A  250 . Coupling ridges  248  and coupling insets  249  can have the same, or approximately the same, lengths as I-beam interlock A  250  and I-beam interlock B  251  respectively. 
     Prior to mating I-beam interlock A  250  with I-beam interlock B  251 , a compression seal  230  is placed in each of the three seal slots  240  of I-beam interlock A  250 , with each seal  230  having the same, or approximately the same, length as the slot  240  in which it is inserted. When I-beam interlock A  250  and I-beam interlock B  251  are pressed together in a mating relationship, the three compression seals  230  are deformed in the manner described previously to provide six lines of sealing between I-beam interlock A  250  and I-beam interlock B  251 . 
     F. Floor Top Plate ( 252 ), Wall End Cap ( 246 ) Sealing System 
       FIG. 15  depicts in exploded form the junction between a floor top plate  252  and a wall end cap  246 , each shown in cross-section. The particular junction is shown for illustrative purposes between wall component  200 R and floor portion  300   a , with floor top plate  252  positioned along the upper surface of floor portion  300   a  adjacent second longitudinal floor edge  119 , and with wall end cap  246  positioned on the bottom edge of wall component  200 R. In structure  150 , wall  200 R shown in  FIG. 15  is vertically oriented and floor portion  300   a  is horizontally oriented. 
     In particular, floor top plate  252  in  FIG. 15  is a rigid elongate member that has an elongate seal plate  223  with an elongate interior face  226  and an opposing elongate planar exterior face  227 . The exterior face  227  preferably is hard and smooth to provide a good sealing surface. Seal plate  223  has a length the same, or substantially the same, as the length of second longitudinal floor edge  119 , so as to cover the top edge of floor portion  300   a  proximate to second longitudinal floor edge  119 . Seal plate  223  of floor top plate  252  has a width the same, or substantially the same, as the width of wall component  200 R. The floor top plate  252  preferably has a thickness “J” sufficient to accommodate the thickness of any protective layer  218  and/or flooring used to surface floor portion  300   a , such as stone, wood or carpeting. 
     As shown in  FIG. 15 , at the exterior edge of the interior face  226  of floor top plate  252 , proximate to second longitudinal floor edge  119 , there is provided a series of elongate stepped locating ridges  254 . These stepped locating ridges, which have a length the same, or substantially the same, as the length of floor top plate  252 , mesh with the corresponding stepped locating ridges  253  shown on I-beam end cap  221  depicted in  FIG. 10  and with dashed lines in  FIG. 15 . 
     Still referring to  FIG. 15 , at the mid-point of the exterior face  227  of seal plate  223  of floor top plate  252  there is provided an elongate interlock slot  228 , which has a rectangular cross-section and a length the same, or substantially the same, as the length of floor top plate  252 . Two elongate seal slots  240  are defined on the exterior face  227  of floor top plate  252 , one on each side of interlock slot  228 , as shown in  FIG. 15 . Each slot  240  has a length the same, or substantially the same, as the length of floor top plate  252 . 
     Floor top plate  252  can be secured to the top edge of floor portion  300   a  proximate to second longitudinal floor edge  119  shown in  FIG. 15  for example by adhesive applied to interior face  226 , or by fasteners, such as screw or nail fasteners, spaced apart along the length of floor top plate  252  and driven through the exterior face  227 , or by utilizing a combination of adhesive and fasteners. 
       FIG. 15  additionally depicts a wall end cap  246  positioned along the bottom edge of wall component  200 R. The design of wall end cap  246  was previously described in connection with  FIG. 12 . The seal plate  223  of wall end cap  246  shown in  FIG. 15  has a length and width the same, or substantially the same, as the length and width of the bottom edge of wall component  200 R, so as to cover the entirety, or substantially the entirety, of the bottom edge of wall component  200 R shown in in  FIG. 15 . 
     Wall end cap  246  can be secured to the bottom edge of wall component  200 R shown in  FIG. 15  for example by adhesive applied to interior face  226 , or by fasteners, such as screw or nail fasteners, spaced apart along the length of wall end cap  246  and driven through the exterior face  227 , or by utilizing a combination of adhesive and fasteners. 
     In  FIG. 15 , floor top plate  252  mates with wall end cap  246 . For this purpose, the interlock key  247  of wall end cap  246  is provided with a length the same, or substantially the same, as the length of the exterior face  227  of floor top plate  252 . That interlock key  247  mates with the interlock slot  228  of floor top plate  252  when floor top plate  252  and wall end cap  246  are pressed together, with the elongate coupling ridges  248  of wall end cap  246  mating with the elongate coupling insets  249  of floor top plate  252 . Coupling ridges  248  and coupling insets  249  can have the same, or approximately the same, lengths as wall end cap  246  and floor top plate  252  respectively. 
     Prior to mating wall end cap  246  and floor top plate  252 , a compression seal  230  is placed in each of the two seal slots  240  of floor top plate  252 , with each seal  230  having the same, or approximately the same, length as the seal slot  240  in which it is inserted. When wall vertical interlock  245  and wall end cap  246  are pressed together in a mating relationship, the two compression seals  230  are deformed in the manner described previously to provide four lines of sealing between wall end cap  246  and floor top plate  252 . 
     G. Roof Bottom Plate ( 255 ), Wall End Cap ( 246 ) Sealing System 
       FIG. 13  depicts in exploded form the junction between a roof bottom plate  255  and a wall end cap  246 , each shown in cross-section. The particular junction shown for illustrative purposes is between wall component  200 R and roof portion  400   a , with roof bottom plate  255  positioned along the lower face of roof portion  400   a  adjacent second longitudinal roof edge  416 , and wall end cap  246  positioned on the top edge of wall component  200 R. In structure  150 , wall component  200 R in  FIG. 13  is vertically oriented and roof portion  400   a  is horizontally oriented. 
     The design of roof bottom plate  255  shown in  FIG. 13  is substantially the same as floor top plate  252  shown in  FIG. 15 , except that roof bottom plate  255  is thinner because it need not accommodate the thickness of any flooring; for example, roof bottom plate  255  can have a thickness “I”, equal to the thickness of an abutting protective layer  218 , such as MgO board. Roof bottom plate  255  in  FIG. 13  is a rigid elongate member that has an elongate seal plate  223  with an elongate planar interior face  226  and an opposing elongate planar exterior face  227 . The exterior face  227  preferably is hard and smooth to provide a good sealing surface. Seal plate  223  of roof bottom plate  255  has a length the same, or substantially the same, as the length of second longitudinal roof edge  416 , so as to cover the bottom edge of roof portion  400   a  proximate to second longitudinal roof edge  416 . Seal plate  223  of roof bottom plate  255  has a width the same, or substantially the same, as the width of wall component  200 R. 
     As shown in  FIG. 13 , at the exterior edge of the interior face  226  of roof bottom plate  255 , proximate to second longitudinal roof edge  416 , there is provided a series of elongate stepped locating ridges  254 . These stepped locating ridges, which have a length the same, or substantially the same, as the length of roof bottom plate  255 , mesh with the corresponding stepped locating ridges  253  of wall end cap  221  depicted in  FIG. 10  and with dashed lines in  FIG. 13 , and positioned at the exterior edge of roof portion  400   a.    
     Still referring to  FIG. 13 , at the mid-point of the exterior face  227  of seal plate  223  of roof bottom plate  255  there is provided an elongate interlock slot  228 , which has a rectangular cross-section and a length the same, or substantially the same, as the length of roof bottom plate  255 . There are two elongate seal slots  240  defined on the exterior face  227  of roof bottom plate  255 , one on each side of interlock slot  228 , as shown in  FIG. 13 . Each seal slot  240  has a length the same, or substantially the same, as the length of roof bottom plate  255 . 
     Roof bottom plate  255  can be secured to the bottom face of roof portion  400   a  shown in  FIG. 13  for example by adhesive applied to interior face  226 , or by fasteners, such as screw or nail fasteners, spaced apart along the length of roof bottom plate  255  and driven through the exterior face  227 , or by utilizing a combination of adhesive and fasteners. 
       FIG. 13  additionally depicts a wall end cap  246  positioned along the top edge of wall component  200 R. The design of wall end cap  246  was previously described in connection with  FIG. 12 . The seal plate  223  of wall end cap  246  shown in  FIG. 13  has a length and width the same, or substantially the same, as the length and width of the top edge of wall component  200 R, so as to cover the entirety, or substantially the entirety, of the top edge of wall component  200 R. Wall end cap  246  can be fastened to that top edge for example by adhesive applied to its interior face  226 , or by fasteners, such as screw or nail fasteners, spaced apart along the length of wall end cap  246  and driven through its exterior face  227 , or by utilizing a combination of adhesive and fasteners. 
     In  FIG. 13 , roof bottom plate  255  mates with wall end cap  246 . For this purpose, the interlock key  247  of wall end cap  246  is provided with a length the same, or substantially the same, as the length of roof bottom plate  255 . That interlock key  247  mates with the interlock slot  228  of roof bottom plate  255  when roof bottom plate  255  and wall end cap  246  are pressed together, with the elongate coupling ridges  248  of wall end cap  246  mating with elongate coupling insets  249  of roof bottom plate  255 . Coupling ridges  248  and coupling insets  249  can be the same, or approximately the same, as the lengths of wall end cap  246  and roof bottom plate  255  respectively. 
     Prior to mating wall end cap  246  and roof bottom plate  255 , a compression seal  230  is placed in each of the two seal slots  240  of roof bottom plate  255 , with each seal  230  having the same, or approximately the same, length as the slot  240  in which it is inserted. When roof bottom plate  255  and wall end cap  246  are pressed together in a mating relationship, the two compression seals  230  are deformed in the manner described previously to provide four lines of sealing between roof bottom plate  255  and wall end cap  246 . 
     H. Shear Seal ( 260 ) 
     A number of the enclosure component sealing systems described herein and utilized in structure  150  include a shear seal system. An element of that shear seal system is a shear seal  260 . 
     Shear seal  260 , which is shown in cross-section in  FIG. 16A , is an elongate member having a planar elongate base  231  flanked by two elongate winglets  233 . At the intersection of base  231  and each of the winglets  233 , there is provided two opposed elongate seal walls  234  (individually referred to as seal walls  234 A,  234 B), joined to and extending away from base  231  in a diverging relationship at a divergence angle λ where λ&lt;180°, for example λ&lt;900 or in the range of 40°&lt;λ&lt;50°. It is most preferred that λ be the same, or nearly so, as the divergence angle ε of the slot walls  244  shown in  FIG. 11B . Thus as shown in  FIG. 16A , the ends of the seal walls  234  distal from base  231  are further apart than the ends of the seal walls  234  proximate to base  231 . 
     At the end of seal wall  234 B distal from base  231 , seal wall  234 B is joined to an elongate seal closure  237 , a planar surface oriented at an upward angle α (relative to the planar orientation of base  231 ) away from seal wall  234 B in a direction toward an elongate seal support  239 , described below, with α&lt;90°. A planar cantilevered seal surface  257  is joined to the edge of seal closure  237  that is distal from seal wall  234 B, as shown in  FIG. 16A . 
     At the end of seal wall  234 A distal from base  231 , seal wall  234 A is joined to the elongate seal support  239 . Proximate to seal wall  234 A, seal support  239  comprises an elongate planar region oriented parallel to base  231 . Distal from seal wall  234 A, seal support  239  comprises an elongate arcuate buttress region. The edge of the arcuate buttress region of seal support  239 , which is distal from seal wall  234 A, joins cantilevered seal surface  257  proximate to the junction of cantilevered seal surface  257  and seal closure  237  to define a hollow seal chamber  238 . Planar cantilevered seal surface  257  is oriented at an upward angle β away from the junction of arcuate buttress  235  and seal closure  237  and terminates at a free end  258 , with β&lt;90°, for example β&gt;α. 
     Shear seal  260  is intended to be received in an elongate seal slot  240 , shown for example in  FIG. 16B , which has the same geometry as the seal slots  40  utilized to receive compression seals  230 . Shear seal  260  is dimensioned to snugly fit within slot  240 , such that winglets  233  of seal  260  are received in grooves  242  of slot  240 . An exemplary placement of a shear seal  260  is depicted in  FIG. 16B , which shows a shear seal  260  placed within the slot  240  of a wall end interlock A  262 , described further below. As can be seen, when shear seal  260  is properly positioned in slot  240 , both seal wall  234 A and seal wall  234 B terminate below the level of exterior face  227  of wall end interlock A  262 , with seal wall  234 A (underlying planar cantilevered seal surface  257 ) terminating below the level at which seal wall  234 B terminates. 
     Shear seal  260  is preferably utilized where two enclosure components  155  are laterally moved during unfolding, one over the other. In such an instance, the two enclosure components  155  are provided with paired enclosure component sealing structures, with one enclosure component sealing structure mounted on one of the enclosure components  155  (such as on an exterior edge), and the other enclosure component sealing structure mounted on the other of the enclosure component structures  155  (such as on an interior face). Each of the paired enclosure component sealing structures has a shear seal  260 , with the two shear seals  260  being oppositely oriented; that is to say, the cantilevered seal surface  257  of each is oriented away from the cantilevered seal surface  257  of the other, and each is oriented in the direction of relative movement. Thus in the case of each of the two shear seals  260 , the lateral movement of one enclosure component  155 , relative to the other, is in the direction from seal wall  234 B toward seal wall  234 A. This lateral movement flattens the cantilevered seal surface  257 , as well as the seal closure  237 , and squeezes down each shear seal  260 , such that its seal closure  237  and seal support  239  are urged into seal chamber  238 . This permits the opposing planar exterior faces  227  of each of the two enclosure component sealing structures to come into full contact. At the same time, the cantilevered seal surface  257  and seal closure  237  of each shear seal  260  are urged into a generally coplanar relationship, with the planar exterior face  227  of the opposing enclosure component seal structure pressing against them, to create an elongate area of sealing. 
     Shear seal  260  can be fabricated from a resilient material, such as rubber or plastic, for example polyurethane. Particular embodiments of enclosure component sealing structures utilizing the foregoing compression sealing system are described below. 
     I. Wall End Interlock A ( 262 ), Floor Top Interlock ( 261 ) Sealing System 
       FIG. 17  depicts in exploded form the junction between a floor top interlock  261  and a wall end interlock A  262 , each shown in cross-section. The particular junction is shown for illustrative purposes between wall portion  200   s - 2  and floor portion  300   b , with floor top interlock  261  positioned along the upper face of floor portion  300   b  adjacent first transverse floor edge  120 , and with wall end interlock A  262  positioned on the bottom edge of wall portion  200   s - 2 . In structure  150 , wall portion  200   s - 2  in  FIG. 17  is vertically oriented and floor portion  300   b  is horizontally oriented. 
     In particular, floor top interlock  261  shown in  FIG. 17  is a rigid elongate member that has an elongate seal plate  223  with an interior face  226  and an opposing planar exterior face  227 . The exterior face  227  preferably is hard and smooth to provide a good sealing surface. Seal plate  223  has a length the same, or substantially the same, as the dimension of floor portion  300   b  coinciding with first transverse floor edge  120 , so as to cover the top edge of floor portion  300   b  proximate to first transverse floor edge  120 . Seal plate  223  of floor top interlock  261  has a width the same, or substantially the same, as the width of wall portion  200   s - 2 . The floor top interlock  261  preferably has a thickness “J” at its interior edge, as shown in  FIG. 17 , sufficient to accommodate the thickness of any protective layer  218  and/or flooring used to surface floor portion  300   b , such as stone, wood or carpeting. 
     As shown in  FIG. 17 , at the exterior edge of the interior face  226  of floor top interlock  261 , adjacent first transverse floor edge  120 , there is provided a series of elongate stepped locating ridges  254 . These stepped locating ridges  254 , which have a length the same, or substantially the same, as the length of floor top interlock  261 , mesh with the corresponding stepped locating ridges  253 . shown on the wall end cap  221  depicted in  FIG. 10 . Such a wall end cap  221  is located at the exterior edge of wall portion  300   b , as indicated in  FIG. 17  by dashed lines. 
     Still referring to  FIG. 17 , an elongate seal slot  240  is defined on the exterior face  227  of floor top interlock  261 , proximate to the exterior edge of floor portion  300   b  (such exterior edge coincides with first transverse floor edge  120 ). Seal slot  240  has a length the same, or substantially the same, as the length of floor top interlock  261 . 
     Floor top interlock  261  can be secured to the top edge of floor portion  300   b  at first transverse floor edge  120  shown in  FIG. 17  for example by adhesive applied to interior face  226 , or by fasteners, such as screw or nail fasteners, spaced apart along the length of floor top interlock  261  and driven through the exterior face  227 , or by utilizing a combination of adhesive and fasteners. 
     Wall end interlock A  262 , also shown in  FIG. 17 , is a rigid elongate member that has an elongate seal plate  223  with an interior face  226  and an opposing exterior face  227 . The exterior face  227  preferably is hard and smooth to provide a good sealing surface. The seal plate  223  of wall end interlock A  262  has a length and width the same, or substantially the same, as the length and width of the bottom edge of wall portion  200   s - 2 , so as to cover the entirety, or substantially the entirety, of the bottom edge of wall portion  200   s - 2 , as shown in in  FIG. 17 . 
     At the mid-point of the interior face  226  of seal plate  223  of wall end interlock A  262 , there is provided an elongate key  222 , which has a rectangular cross section and a length the same, or substantially the same, as the length of wall end interlock A  262 . Key  222  is received in a corresponding elongate slot formed in the exterior edge reinforcement positioned on the bottom edge of the wall portion  200   s - 2  to which wall end interlock A  262  is secured. 
     Again referring to  FIG. 17 , an elongate seal slot  240  is defined on the exterior face  227  of wall end interlock A  262 , toward the interior edge of wall end interlock A  262  (distal from first transverse floor edge  120 ). This seal slot  240  has a length the same, or substantially the same, as the length of wall end interlock A  262 . Additionally, each of the interior and exterior edges of wall end interlock A  262  define locating slots  229 . In the case where the enclosure component  155 , in this case wall portion  200   s - 2 , utilizes the enclosure component laminate design shown in  FIG. 7 , locating slots  229  receive the edge portions of sheet metal layers  205  and  216 , bent down at a ninety degree (90°) angle. 
     Wall end interlock A  262  can be fastened to the bottom edge of wall portion  200   s - 2  for example by adhesive applied to its interior face  226 , or by fasteners, such as screw or nail fasteners, spaced apart along the length of wall end interlock A  262  and driven through its exterior face  227 , or by utilizing a combination of adhesive and fasteners. 
     In  FIG. 17 , floor top interlock  261  mates with wall end interlock A  262 . Prior to mating, a shear seal  260  is placed in the seal slot  240  of floor top interlock  261 , and a shear seal  260  is placed in the seal slot  240  of wall end interlock A  262 . The shear seals  260  placed in the seals slots  240  of floor top interlock  261  and wall end interlock A  262  each has the same, or approximately the same, length as the slot  240  in which it is inserted. 
     Mating of floor top interlock  261  with wall end interlock A  262  occurs by the bottom edge of wall portion  200   s - 2  moving over the top surface of floor portion  300   b , from a folded position to an unfolded position. Thus in the arrangement shown in  FIG. 17 , such mating will correspond to a movement of wall portion  200   s - 2  from the right-hand side of the figure toward the left, with wall end interlock A  262  sliding over floor top interlock  261  until the fully unfolded position is reached. In that fully unfolded position, the shear seal  260  in floor top interlock  261 , and particularly its seal surface  257 , will be in pressing contact with the exterior face  227  of wall end interlock A  262 ; and the shear seal  260  in wall end interlock A  262 , and particularly its seal surface  257 , will be in pressing contact with the exterior face  227  of floor top interlock  261 . Consistent with this movement, the shear seal  260  placed in seal slot  240  of floor top interlock  261  is preferably oriented so that the free end  258  of its cantilevered seal surface  257  is directed toward the exterior edge of floor top interlock  261  (toward first transverse floor edge  120 ), and the shear seal  260  placed in the seal slot  240  of wall end interlock A  262  is preferably oriented so that the free end  258  of its cantilevered seal surface  257  is directed toward the interior edge of wall end interlock A  262  (away from first transverse floor edge  120 ). 
     To facilitate mating, it is preferred that planar exterior face  227  of floor top interlock  261  not be parallel to the interior face  226  of floor top interlock  261 , or to the top face of wall portion  300   b , but rather be inclined downward, in the direction moving away from first transverse floor edge  120  at an angle γ, as shown in  FIG. 17 . Likewise, it is preferred that planar exterior face  227  of wall end interlock A  262  be inclined upward, in the direction moving toward first transverse floor edge  120 , at the same angle γ, as shown in  FIG. 17 . Accordingly, when bottom edge of wall portion  200   s - 2  moves over the top surface of floor portion  300   b , from a folded position to an unfolded position, the shear seals  260  located in slots  240  of floor top interlock  261  and wall end interlock A  262  will be compressed by the sliding movement of wall end interlock A  262  to provide two elongate sealing areas between floor portion  300   b  and wall portion  200   s - 2 . Also to facilitate mating, there is shown in  FIG. 17  a step-down  268  on the exterior face  227  of wall end interlock A  262 . Step-down  268  is an abrupt reduction in the thickness of wall end interlock A  262 , in the direction moving from the inside edge of wall end interlock A  262  toward the outside edge of wall end interlock A  262 , which outside edge in the case of the junction depicted in  FIG. 17  is proximate first transverse floor edge  120  when wall portion  200   s - 2  is in the fully unfolded position. Step-down  268  is located between the slot  240  and the outside edge of wall end interlock A  262 . There is also shown in  FIG. 17  a corresponding step-up  269  on the exterior face  227  of floor top interlock  261 . Step-up  269  is an abrupt increase in the thickness of floor top interlock  261 , in the direction moving from the inside edge of floor top interlock  261  toward the outside edge of floor top interlock  261 , which outside edge in the case of the junction depicted in  FIG. 17  is proximate first transverse floor edge  120  when floor portion  300   b  is in the fully unfolded position. Step-up  269  is located between the slot  240  and the inside edge of floor top interlock  261  (distal from first transverse floor edge  120 ). Step-down  268  and step-up  269  are appropriately located to act as a “stop” and insure correct alignment of wall end interlock A  262  with floor top interlock  261  as wall end interlock A  262  slides over floor top interlock  261 . 
     J. Wall End Interlock B ( 263 ), Wall End Interlock A ( 262 ) Sealing System 
       FIG. 18  depicts in exploded form the junction between a wall end interlock B  263  and a wall end interlock A  262 , each shown in cross-section. The particular junction is shown for illustrative purposes between wall portion  200   s - 2  and wall component  200 P, with wall end interlock B  263  positioned on the interior edge of wall component  200 P proximate first transverse edge  108  and wall end interlock A  262  positioned on the vertical edge of wall portion  200   s - 2  proximate first longitudinal edge  106 . In structure  150 , wall portion  200   s - 2  depicted in  FIG. 18  is vertically oriented and wall component  200 P is vertically oriented. 
     In particular, wall end interlock B  263  in  FIG. 18  is an elongate member that has an elongate seal plate  223  with an elongate interior face  226  and an opposing elongate planar exterior face  227 . The exterior face  227  preferably is hard and smooth to provide a good sealing surface. Seal plate  223  has a length the same, or substantially the same, as the height of wall component  200 P when unfolded, so as to cover the interior edge of wall component  200 P proximate to first transverse edge  108 . Seal plate  223  of wall end interlock B  263  has a width the same, or substantially the same, as the width of wall portion  200   s - 2 . In general terms, the design of wall end interlock B  263  is substantially the same as floor top interlock  261  depicted in  FIG. 17 , except wall end interlock B  263  is thinner because it need not accommodate any flooring; for example, wall end interlock B  263  can have a thickness “I” (not shown in  FIG. 18 ) at its interior edge equal to the thickness of an abutting protective layer  218 , such as MgO board. 
     Still referring to  FIG. 18 , an elongate seal slot  240  is defined on the exterior face  227  of wall end interlock B  263 , proximate the interior edge of wall component  200 P positioned adjacent to first longitudinal edge  106 . Seal slot  240  has a length the same, or substantially the same, as the length of wall end interlock B  263 . 
     Wall end interlock B  263  can be secured to the interior edge of wall component  200 P as shown in  FIG. 18  for example by adhesive applied to interior face  226 , or by fasteners, such as screw or nail fasteners, spaced apart along the length of wall end interlock B  263  and driven through the exterior face  227 , or by utilizing a combination of adhesive and fasteners. 
       FIG. 18  additionally shows a wall end interlock A  262  positioned along the depicted vertical edge of wall portion  200   s - 2 . The design of wall end interlock A  262  was previously disclosed in connection with  FIG. 17 . The seal plate  223  of the wall end interlock A  262  shown in  FIG. 18  has a length and width the same, or substantially the same, as the length and width of the depicted vertical edge of wall portion  200   s - 2 , so as to cover the entirety, or substantially the entirety, of that vertical edge of wall portion  200   s - 2 , as shown in in  FIG. 18 . The elongate rectangular key  222  of wall end interlock A  262  shown in  FIG. 18  has a length the same, or substantially the same, as the length of that wall end interlock A  262 . Key  222  is received in a corresponding elongate slot formed in the exterior edge reinforcement positioned on the vertical edge of the wall portion  200   s - 2  to which wall end interlock A  262  is secured. The seal slot  240  of wall end interlock A  262  shown in  FIG. 18  has a length the same, or substantially the same, as the length of that wall end interlock A  262 . In the case where the enclosure component  155 , in this case wall portion  200   s - 2 , utilizes the enclosure component laminate design shown in  FIG. 7 , the locating slots  229  of wall end interlock A  262  shown in  FIG. 18  receive the edge portions of sheet metal layers  205  and  216 , bent down at a ninety degree (90°) angle. 
     Wall end interlock A  262  can be secured to the vertical edge of wall portion  200   s - 2  shown in  FIG. 18  for example by adhesive applied to its interior face  226 , or by fasteners, such as screw or nail fasteners, spaced apart along the length of wall end interlock A  262  and driven through its exterior face  227 , or by utilizing a combination of adhesive and fasteners. 
     In  FIG. 18 , wall end interlock A  262  mates with a wall end interlock B  263 . Prior to mating, a shear seal  260  is placed in the seal slot  240  of wall end interlock A  262 , and a shear seal  260  is placed in the seal slot  240  of wall end interlock B  263 . Each of the shear seals  260  placed in the seals slots  240  of wall end interlock A  262  and a wall end interlock B  263  has the same, or approximately the same, length as the slot  240  in which it is inserted. 
     Mating of wall end interlock A  262  and a wall end interlock B  263  occurs by the vertical edge of wall portion  200   s - 2  depicted in  FIG. 18  swinging toward and across the interior surface of wall component  200 P, as wall portion  200   s - 2  moves from a folded position to an unfolded position. Thus in the arrangement shown in  FIG. 18 , such mating will correspond to a movement of wall portion  200   s - 2  from the top of the figure toward the bottom, with wall end interlock A  262  sliding across wall end interlock B  263  until the fully unfolded position is reached. In that fully unfolded position, the shear seal  260  in wall end interlock A  262 , and particularly its seal surface  257 , will be in pressing contact with the exterior face  227  of wall end interlock B  263 ; and the shear seal  260  in wall end interlock B  263 , and particularly its seal surface  257 , will be in pressing contact with the exterior face  227  of wall end interlock A  262 . Consistent with this movement, the shear seal  260  placed in seal slot  240  of floor top interlock B  263  is preferably oriented so that the free end  258  of its cantilevered seal surface  257  is directed toward the exterior edge of wall end interlock B  263  (toward first transverse edge  108 ), and the shear seal  260  placed in the seal slot  240  of wall end interlock A  262  is preferably oriented so that the free end  258  of its cantilevered seal surface  257  is directed toward the interior edge of wall end interlock A  262  (away from first transverse edge  108 ). 
     To facilitate mating, it is preferred that planar exterior face  227  of wall end interlock B  263  not be parallel to the interior face  226  of wall end interlock B or to the interior face of wall component  200 P, but rather be inclined at an angle γ, as shown in  FIG. 17 , so that seal plate  223  of wall end interlock B  263  becomes progressively thinner moving away from first transverse edge  108 . Likewise, it is preferred that planar exterior face  227  of wall end interlock A  262  be inclined at the same angle γ, as shown in  FIG. 17 , so that seal plate  223  of wall end interlock A  262  becomes progressively thicker moving away from first transverse edge  108 . Accordingly, when vertical edge of wall portion  200   s - 2  swings toward and across the interior surface of wall component  200 P, from a folded position to an unfolded position, the shear seals  260  located in slots  240  of floor end interlock A  262  and wall end interlock B  263  will be compressed by the sliding movement of wall end interlock A  262  to provide two elongate sealing areas between wall component  200 P and wall portion  200   s - 2 . Also to facilitate mating, as previously described a step-down  268  is provided on the exterior face  227  of wall end interlock A  262 . Step-down  268  is an abrupt reduction in the thickness of wall end interlock A  262 , in the direction moving from the inside edge of wall end interlock A  262  toward the outside edge of wall end interlock A  262 , which outside edge in the case of the junction depicted in  FIG. 18  is proximate first transverse edge  108  when wall portion  200   s - 2  is in the fully unfolded position. Step-down  268  is positioned between the slot  240  and the outside edge of wall end interlock A  262  (proximate transverse edge  108 ), as depicted in  FIG. 18 . Also as depicted in  FIG. 18 , a corresponding step-up  269  is provided on the exterior face  227  of wall end interlock B  263 . Step-up  269  is an abrupt increase in thickness of wall end interlock B  263 , in the direction moving from the inside edge of wall end interlock B  263  toward the outside edge of wall end interlock B  263 , which outside edge in the case of the junction depicted in  FIG. 18  is proximate first transverse edge  108 . Step-up  269  is positioned between the slot  240  and the inside edge of wall end interlock B  263  (distal from first transverse edge  108 ). Step-down  268  and step-up  269  are appropriately located to act as a “stop” and insure correct alignment of wall end interlock A  262  with wall end interlock B  263  as wall end interlock A  262  slides across wall end interlock B  263 . 
     K. Closure Boards 
     The two closure boards of these inventions, namely perimeter board  310  and roof skirt board  280 , are described below. 
     Perimeter Board ( 310 ). The exterior edges of floor component  300 , or portions thereof, are optionally provided with a perimeter board  310 . 
       FIG. 19A  depicts in cross section an exemplary positioning of perimeter board  310 . In particular, perimeter board  310  is designed to be positioned against an I-beam end cap  221 , in this instance the I-beam end cap  221  located on an exterior edge of floor portion  300   a . Perimeter board  310  includes an elongate seal plate  223  with an interior face  226  and an opposing exterior face  227 . Perimeter board  310  has such length as is desired, such as to span the entirety of the exterior edge of floor portion  300   a . As shown in  FIG. 19A , the width of perimeter board  310  can be sufficient to capture the thickness of the floor component  300   a , or floor portion thereof against which it is positioned, plus a portion of the abutting wall component  200  or wall component portion. 
     The interior face  226  of perimeter board  310  includes an elongate locating key  264 , which is rectangular in cross section and dimensioned to be received in accessory slot  224  of I-beam end cap  221 . Locating key  264  can be the same length as the perimeter board  310 , or can comprise space apart discrete segments. The interior face  226  of perimeter board  310  in  FIG. 19A  also includes a plurality of elongate clearance slots  266 , rectangular in cross section in the embodiment shown, and having a length the same as, or substantially the same as, the length of perimeter board  310 . Clearance slots  266  are preferably located so as to be positioned over locating grooves  225  of I-beam end cap  221  when locating key  264  is received in accessory slot  224 . When so located, clearance slots  266  provide space for fastener heads driven into locating grooves  225  of I-beam end cap  221  so that perimeter board  310  can be snugly positioned against I-beam end cap  221 . 
     The exterior face  227  of perimeter board  310  depicted in  FIG. 19A  includes two elongate fastener slots  265 , each of which has a dovetail shape in cross section in the embodiment shown, and a length the same as, or substantially the same as, the length of perimeter board  310 . A locating groove  225  is provided in each fastener slot  265 , so as to facilitate the accurate positioning of nails or other fasteners utilized to secure perimeter board  310  to abutting components. 
       FIG. 19B  depicts in cross section the positioning of I-beam end cap  221 , floor top plate  252 , wall end cap  246  and perimeter board  310  relative to each other at a junction between wall component  200 R and floor portion  300   a . As can be seen, perimeter board  310  masks this junction from external view to achieve a more attractive appearance, as well as providing an additional barrier against the ingress of soil, dust, rain and the like. A resilient strip  267 , such as those shown in  FIG. 19B , can be snapped into each of the fastener slots  265  to cover any nail or fastener heads exposed in those slots. 
     Roof Skirt Board. The exterior edges of roof component  400 , or portions thereof, are optionally provided with a roof skirt board  280 . 
       FIG. 20  depicts in cross section an exemplary positioning of roof skirt board  280 . 
     In particular, roof skirt board  280  is designed to be positioned against an I-beam end cap  221 , in this instance the I-beam end cap  221  located on an exterior edge of roof portion  400   a . Roof skirt board  280  includes an elongate seal plate  223  with an interior face  226  and an opposing exterior face  227 . Roof skirt board  280  has such length as is desired, such as to span the entirety of the exterior edge of roof portion  400   a . As shown in  FIG. 20 , the width of roof skirt board  280  can be sufficient to capture the thickness of the roof component  400 , or portion thereof against which it is positioned, plus a portion of the abutting wall component  200  or wall portion. 
     The interior face  226  of roof skirt board  280  includes an elongate cinch key  278 , which is preferably serpentine in cross section and dimensioned to be received in accessory slot  224  of I-beam end cap  221 . Cinch key  278  can be the same length as the perimeter board  310 , or can comprise space apart discrete segments. In turn, the exterior face  227  of roof skirt board  280  includes an elongate fastener slot  265  positioned over cinch key  278 . 
     Fastener slot  265  has a dovetail shape in cross section in the embodiment shown, and a length the same as, or substantially the same as, the length of roof skirt board  280 . An elongate locating groove  225  is provided in the fastener slot  265  of roof skirt board  280 , and provides a visual indication of where to place fasteners during construction. 
     Roof skirt board  280  facilitates the securing of roofing material, such as thermoplastic polyolefin membrane, to wall components  200 . After fully unfolding the roof portions, such roofing material is optionally used to cover the top of roof component  400 . The roofing material extending beyond roof component  400  is then folded down to extend between exterior face  227  of I-beam end cap  221  of roof portion  400   a  shown in  FIG. 20  and interior face  226  of roof skirt board  280 . After the roofing material is so positioned, nails or other fasteners are driven at spaced intervals along locating groove  225 , to press roof skirt board  280  against the roofing material and secure the roofing material in place between roof skirt board  280  and I-beam end cap  221 . Cinch key  278 , if provided with a serpentine or like cross section, provides additional area so as to better capture the roofing material. An elongate resilient strip  267 , such as the one shown in  FIG. 20 , can be snapped into fastener slot  265  to cover any nail or fastener heads exposed in this slot. 
     Enclosure Component Sealing Structure Materials 
     The enclosure component sealing structures described herein can be fabricated from a number of materials, such as wood, aluminum, plastics and the like. It is preferred to fabricate the enclosure component sealing structures from foamed polyvinyl chloride (PVC), particularly Celuka foamed PVC. This material provides a strong, impact and crack-resistant lightweight material with a hard attractive exterior, which, in addition to contributing a sealing function, additionally contributes to the structural rigidity of the enclosure components  155 . 
     Enclosure Component Sealing Structure Exemplary Placements 
     The exploded views in  FIGS. 8A and 8B  of structure  150  depicted in  FIG. 1  provide exemplary placements of the enclosure component sealing structures described herein. For illustrative purposes to better understand some of these exemplary placements, certain of the enclosure component sealing structures shown in  FIGS. 8A and 8B  are shown slightly separated from the enclosure component  155  to which they are fastened. 
     Referring to  FIG. 8A , I-beam end caps  221  can be utilized to seal the horizontal exterior edges of floor portion  300   a  (three placements), floor portion  300   b  (three placements), roof portion  300   a  (three placements), roof portion  300   b  (two placements) and roof portion  300   c  (three placements). Further, as shown in  FIG. 8B  and in detail in FIG.  12 , the hinged junction between wall portion  200   s - 1  and  200   s - 2  can be sealed by positioning a wall end cap  246  on the vertical edge of wall portion  200   s - 1  and a wall vertical interlock  245  on the vertical edge of wall portion  200   s - 2 . Likewise, the hinged vertical junction between wall portion  200   s - 3  and  200   s - 4  can be sealed as shown in  FIG. 8B  by positioning a wall end cap  246  on the hinged vertical edge of wall portion  200   s - 3  and a wall vertical interlock  245  on the hinged vertical edge of wall portion  200   s - 4 . 
     In addition, as shown in  FIGS. 8A and 8B , and in detail in  FIG. 13 , the horizontal junction between wall component  200 R and roof portion  400   a  can be sealed by positioning a roof bottom plate  255  on the bottom face of roof portion  400   a  overlying wall component  200 R and by positioning a wall end cap  246  on the horizontal edge of wall component  200 R, which supports roof portion  400   a . A like seal arrangement can be used to seal the horizontal junctions between roof portions  400   a ,  400   b  and  400   c , and wall portions  200   s - 1  through  200   s - 4  (unfolded roof portion  400   b  will rest on unfolded wall portion  200   s - 2  and also on a section of wall portion  200   s - 1 , as can be appreciated from  FIG. 3 ), as well as to seal the horizontal junction between roof portion  400   c  and wall component  200 P. The two vertical exterior edges of wall component  200 R can each be sealed by positioning on each of them a wall end cap  246 . 
     In a comparable manner, as shown in  FIGS. 8A, 8B  and in detail in  FIG. 15 , the horizontal junction between wall component  200 R and floor portion  300   a  can be sealed by positioning a wall end cap  246  on the horizontal edge of wall component  200 R resting on floor portion  300   a  and by positioning on the top face of floor portion  300   a  underlying wall component  200 R a floor top plate  252 . A like seal arrangement can be used to seal the horizontal junctions between floor portion  300   b  and wall component  200 P, and between floor portion  300   a  and wall portions  200   s - 1  and  200   s - 3 , up to the point where wall portion  200   s - 1  meets wall portion  200   s - 2 , and up to the point where wall portion  200   s - 3  meets wall portion  200   s - 4 . The two vertical exterior edges of wall component  200 P can be sealed by positioning on each of them a wall end cap  246 . 
     Furthermore, the hinged horizontal junction between roof portion  400   b  and roof portion  400   c , as shown in  FIG. 8A  and in detail in  FIG. 14 , can be sealed by positioning an I-beam interlock A  250  on interior edge  412   c  of roof portion  400   c , and an I-beam interlock B  251  on first interior edge  412   b  of roof portion  400   b . Similarly, the hinged horizontal junction between roof portion  400   a  and roof portion  400   b  shown in  FIG. 8A  can be sealed by positioning an I-beam interlock A  250  on second interior edge  412   b  of roof portion  400   b , and an I-beam interlock B  251  on interior edge  412   a  of roof portion  400   a . In like manner, the hinged horizontal junction between floor portion  300   a  and floor portion  300   b  can be sealed by positioning an I-beam interlock A  250  on the interior edge  301   b  of floor portion  300   b  and an I-beam interlock B  251  on the interior edge  301   a  of floor portion  300   a.    
     Referring now to  FIGS. 8A, 8B  and in detail to  FIG. 17 , the horizontal junction between wall portion  200   s - 2  and floor portions  300   a  and  300   b  can be sealed by positioning a wall end interlock A  262  on the bottom edge of wall portion  200   s - 2  and a floor top interlock  261  on the regions of the upper face of floor portions  300   a  and  300   b  underlying wall portion  200   s - 2  when wall portion  200   s - 2  is in its fully unfolded position. The horizontal junction between wall portion  200   s - 4  and floor portions  300   a  and  300   b  when wall portion  200   s - 4  in its fully unfolded position can be sealed similarly. 
     Finally, referring to  FIG. 8B  and in detail to  FIG. 18 , the vertical junction between wall portion  200   s - 2  and wall component  200 P can be sealed by positioning a wall end interlock A  262  on the vertical edge of wall portion  200   s - 2  that is adjacent to wall component  200 P when both wall portion  200   s - 2  and wall component  200 P are in their fully unfolded positons, and by positioning a wall end interlock B  263  on the region of the interior face of wall component  200 P that is adjacent wall portion  200   s - 2  when both wall portion  200   s - 2  and wall component  200 P are in their fully unfolded positions. The vertical junction between wall portion  200   s - 4  and wall component  200 P can be sealed in like manner. 
     Enclosure Component Manufacture 
     For enclosure components  155  having the construction disclosed herein in reference to  FIG. 7 , the metal sheets  206  and  217  that can be used to form first structural layer  210  and second structural layer  215  respectively can be entirely flat and juxtaposed in a simple abutting relationship. Optionally, metal sheets  206  and  217  can be provided with edge structures that facilitate placement of sheets and panels during manufacture. 
     Particular edge structure designs for metal sheets  206  and  217  are described in U.S. Nonprovisional patent application Ser. No. 17/504,883 entitled “Sheet/Panel Design for Enclosure Component Manufacture,” having the same inventors as the inventions described herein and filed on Oct. 19, 2021. The contents of U.S. Nonprovisional patent application Ser. No. 17/504,883 entitled “Sheet/Panel Design for Enclosure Component Manufacture,” having the same inventors as the inventions described herein and filed on Oct. 19, 2021, are incorporated by reference as if fully set forth herein, particularly including the exterior and interior edge structure designs described for example at paragraphs 00187-00205 and 00212 and in  FIGS. 8, 9A-9C, 23A-23J and 24A-24B  thereof. 
     A facility suitable for manufacturing the enclosure components  155  of the present invention, as well as exemplary manufacturing steps, are also described in U.S. Nonprovisional patent application Ser. No. 17/504,883 entitled “Sheet/Panel Design for Enclosure Component Manufacture,” having the same U.S. Nonprovisional patent application Ser. No. 17/504,883 entitled “Sheet/Panel Design for Enclosure Component Manufacture,” having the same inventors as the inventions described herein and filed on Oct. 19, 2021, are incorporated by reference as if fully set forth herein, particularly including the facility suitable for manufacturing the enclosure components  155  of the present invention, as well as exemplary manufacturing steps, described for example at paragraphs 00178-00186 and 00206-00222, and in  FIGS. 22, 23A-23J and 24A-24B . 
     Enclosure Component Relationships and Assembly for Transport 
     For ease of transport and maximum design flexibility, it is preferred that there be a specific dimensional relationship among enclosure components  155 . 
       FIG. 2  shows a top schematic view of structure  150  shown in  FIG. 1 , and includes a geometrical orthogonal grid for clarity of explaining the preferred dimensional relationships among its enclosure components  155 . The basic length used for dimensioning is indicated as “E” in  FIG. 2 ; the orthogonal grid overlaid in  FIG. 2  is 8E long and 8E wide; notably, the entire structure  150 , including perimeter boards  310 , preferably is bounded by this 8E by 8E orthogonal grid. 
     Roof portions  400   a ,  400   b  and  400   c  each can be identically dimensioned in the transverse direction. Alternatively, referring to  FIG. 3 , roof portion  400   c  (which is stacked upon roof portions  400   a  and  400   b  when roof portions  400   b ,  400   c  are fully folded) can be dimensioned to be larger than either of roof portion  400   a  and roof portion  400   b  in the transverse direction for example, by ten to fifteen percent, or by at least the aggregate thickness of roof components  400   a  and  400   b . This transverse direction dimensional increase is to reduce the chances of binding during the unfolding of roof portions  400   b ,  400   c . In addition, as described in U.S. Nonprovisional patent application Ser. No. 16/786,315, entitled “Equipment and Methods for Erecting a Transportable Foldable Building Structure,” and filed on Feb. 10, 2020, friction-reducing components can be used to facilitate unfolding roof component  400 , such as by positioning a first wheel caster at the leading edge of roof portion  400   c  proximate to the corner of roof portion  400   c  that is supported by wall portion  200   s - 2  as roof portion  400   c  is deployed, and by positioning a second similar wheel caster at the leading edge of roof portion  400   c  proximate to the corner of roof portion  400   c  that is supported by wall portion  200   s - 4  as roof portion  400   c  is deployed. In such a case, roof portion  400   c  can be dimensioned larger than either of roof portions  400   a  and  400   b  in the transverse direction by at least the aggregate thickness of roof components  400   a  and  400   b , less the length of the first or second wheel caster. 
     In  FIG. 2 , the four wall components  200  are each approximately 8E long, and each of roof portions  400   a  and  400   b  is approximately 8E long and 2.5E wide. Roof portion  400   c  is approximately 8E long and 2.9E wide. In  FIGS. 2 and 3 , each of floor components  300   a  and  300   b  is 8H long; whereas floor component  300   a  is just over 3E wide and floor component  300   b  is just under 5E wide. 
     The shipping module  100  shown edge-on in  FIG. 3  includes a fixed space portion  102  defined by roof component  400   a , floor component  300   a , wall component  200 R, wall portion  200   s - 1  and wall portion  200   s - 3 . As shown in  FIG. 2 , second wall portion  200   s - 2  is folded inward and positioned generally against fixed space portion  102 , and fourth wall portion  200   s - 4  is folded inward and positioned generally against second wall portion  200   s - 2  (wall portions  200   s - 2  and  200   s - 4  are respectively identified in  FIG. 2  as portions  200   s - 2   f  and  200   s - 4   f  when so folded and positioned). The three roof components  400   a ,  400   b  and  400   c  are shown unfolded in  FIG. 1  and shown folded (stacked) in  FIG. 3 , with roof component  400   b  stacked on top of roof component  400   a , and roof component  400   c  stacked on top of the roof component  400   b . Wall component  200 P, shown in  FIGS. 2 and 3 , is pivotally secured to floor portion  300   b  at the location of axis  105 , and is vertically positioned against the outside of wall portions  200   s - 2  and  200   s - 4 . In turn, floor portion  300   b  is vertically positioned proximate fixed space portion  102 , with wall component  200 P pending from floor portion  300   b  between floor portion  300   b  and wall portions  200   s - 2  and  200   s - 4 . 
     Sizing the enclosure components  155  of structure  150  according to the dimensional relationships disclosed above yields a compact shipping module  100 , as can be seen from the figures. Thus shipping module  100  depicted in  FIG. 3 , when dimensioned according to the relationships disclosed herein using an “E” dimension (see  FIG. 2 ) of approximately 28.625 inches (72.7 cm), and when its components are stacked and positioned as shown in  FIG. 3 , has an overall length of approximately 19 feet (5.79 m), an overall width of approximately 8.5 feet (2.59 meters) and an overall height of approximately 12.7 feet (3.87 meters). These overall dimensions are less than a typical shipping container. 
     It is preferred that the fixed space portion  102  be in a relatively finished state prior to positioning (folding) together of the all other wall, roof and floor portions as described above. In the embodiment shown in  FIGS. 1 and 2 , wall components  200  are fitted during manufacture and prior to shipment with all necessary door and window assemblies, with the enclosure components  155  being pre-wired, and fixed space portion  102  is fitted during manufacture with all mechanical and other functionality that structure  150  will require, such as kitchens, bathrooms, closets and other interior partitions, storage areas, corridors, etc. Carrying out the foregoing steps prior to shipment permits the builder, in effect, to erect a largely finished structure  150  simply by “unfolding” (deploying) the positioned components of shipping module  100 . 
     Each of the wall, floor and roof components  200 ,  300  and  400 , and/or the portions thereof, can be sheathed in protective film  177  during fabrication and prior to forming the shipping module  100 . Alternatively or in addition, the entire shipping module  100  can be sheathed in a protective film. Such protective films can remain in place until after the shipping module  100  is at the construction site, and then removed as required to facilitate enclosure component deployment and finishing. 
     Shipping Module Transport 
     The shipping module  100  is shipped to the building site by appropriate transport means. One such transport means is disclosed in U.S. Pat. No. 11,007,921, issued May 18, 2021; the contents of which are incorporated by reference as if fully set forth herein, particularly as found at paragraphs 0020-0035 and in  FIGS. 1A-2D  thereof. As an alternative transport means, shipping module  100  can be shipped to the building site by means of a conventional truck trailer or a low bed trailer (also referred to as a lowboy trailer), and in the case of over-the-water shipments, by ship. 
     Structure Deployment and Finishing 
     At the building site, shipping module  100  is positioned over its desired location, such as over a prepared foundation; for example, a poured concrete slab, a poured concrete or cinder block foundation, sleeper beams or concrete posts or columns. This can be accomplished by using a crane, either to lift shipping module  100  from its transport and move it to the desired location, or by positioning the transport means over the desired location, lifting shipping module  100 , then moving the transport means from the desired location, and then lowering shipping module  100  to a rest state at the desired location. Particularly suitable equipment and techniques for facilitating the positioning of a shipping module  100  at the desired location are disclosed in U.S. Nonprovisional patent application Ser. No. 16/786,315, entitled “Equipment and Methods for Erecting a Transportable Foldable Building Structure,” and filed on Feb. 10, 2020. The contents of that U.S. Nonprovisional patent application Ser. No. 16/786,315, entitled “Equipment and Methods for Erecting a Transportable Foldable Building Structure,” and filed on Feb. 10, 2020, are incorporated by reference as if fully set forth herein, particularly including the equipment and techniques described for example at paragraphs 00126-00128 and in connection with  FIGS. 11A and 11B  thereof. 
     Following positioning of shipping module  100  at the building site, the appropriate portions of wall, floor and roof components  200 ,  300  and  400  are “unfolded” (i.e., deployed) to yield structure  150 . Unfolding occurs in the following sequence: (1) floor portion  300   b  is pivotally rotated about horizontal axis  305  (shown in  FIGS. 3 and 4 ) to an unfolded position, (2) wall component  200 P is pivotally rotated about horizontal axis  105  (shown in  FIG. 3  behind perimeter board  312 ) to an unfolded position, (3) wall portions  200   s - 2  and  200   s - 4  are pivotally rotated about vertical axes  192  and  194  (shown in  FIG. 2 ) respectively to unfolded positions, and (4) roof portions  400   b  and  400   c  are pivotally rotated about horizontal axes  405   a  and  405   b  (shown in  FIGS. 3 and 4 ) respectively to unfolded positions. 
     A mobile crane can be used to assist in the deployment of certain of the enclosure components  155 , specifically roof portions  400   b  and  400   c , floor portion  300   b , as well as the wall component  200 P pivotally secured to floor portion  300   b . Alternatively, particularly suitable equipment and techniques for facilitating the deployment of enclosure components  155  are disclosed in U.S. Nonprovisional patent application Ser. No. 16/786,315, entitled “Equipment and Methods for Erecting a Transportable Foldable Building Structure,” and filed on Feb. 10, 2020. The contents of that U.S. Nonprovisional patent application Ser. No. 16/786,315, entitled “Equipment and Methods for Erecting a Transportable Foldable Building Structure,” and filed on Feb. 10, 2020, are incorporated by reference as if fully set forth herein, particularly including the equipment and techniques described for example at paragraphs 00132-00145 and depicted in  FIGS. 12A-14B  thereof. 
     After unfolding, the enclosure components  155  are secured together to finish the structure  150  that is shown in  FIG. 1 . Perimeter board  312  and roof skirt board  280  provide structures for securing wall, floor and roof components in their deployed positions. If any temporary hinge structures have been utilized, then these temporary hinge structures can be removed if desired and the enclosure components  155  can be secured together. During or after unfolding and securing of the enclosure components  155 , any remaining finishing operations are performed, such as addition of roofing material, and making hook-ups to electrical, fresh water and sewer lines to complete structure  150 , as relevant here. 
     This disclosure should be understood to include (as illustrative and not limiting) the subject matter set forth in the following numbered clauses: 
     Clause 1. An end cap for securing to an edge of a building structure enclosure component comprising: 
     (a) a planar elongate seal plate having an interior face, an opposed exterior face, a first edge, an opposed second edge and a thickness, the interior face adapted to be secured to the edge of the enclosure component; 
     (b) an elongate key on the interior face of the seal plate; 
     (c) an elongate accessory slot defined in the exterior face of the seal plate of a depth less than the thickness of the seal plate; 
     (d) a first locating slot extending from the first edge of the seal plate inwardly into the thickness of the seal plate toward the second edge; and 
     (e) a second locating slot extending from the second edge of the seal plate inwardly into the thickness of the seal plate toward the first edge. 
     Clause 2. The end cap of clause 1, wherein the exterior face defines at least one elongate locating groove positioned between the elongate accessory slot and the first edge or the second edge. 
     Clause 3. The end cap of either clause 1 or 2, further comprising a first locating ridge at the first edge of the seal plate proximate to the first locating slot. 
     Clause 4. The end cap of clause 3, further comprising a second locating ridge at the second edge of the seal plate proximate to the second locating slot. 
     Clause 5. The end cap of any one of clause 1, 2, 3 or 4, wherein an edge of the first locating slot proximate the interior face of the seal plate terminates an inset distance from the first edge of the seal plate. 
     Clause 6. The end cap of any one of clause 1, 2, 3, 4 or 5, wherein the seal plate is foamed polyvinyl chloride. 
     Clause 7. An enclosure component comprising: 
     (a) a planar laminate having an elongate edge and including (i) a planar foam panel layer having a first face and an opposed second face, (ii) a planar first metal layer bonded to the first face of the planar foam panel layer, and (iii) a planar second metal layer bonded to the second face of the planar foam panel layer; 
     (b) a planar elongate edge reinforcement having an interior face positioned on the edge of the planar laminate and an opposed exterior face in which is defined an elongate slot; 
     (c) a planar elongate seal plate having an interior face, an opposed exterior face, a first edge, an opposed second edge and a thickness, the interior face of the seal plate positioned proximate to the exterior face of the edge reinforcement, with an elongate key on the interior face of the seal plate positioned in the elongate slot of the edge reinforcement; and 
     (d) an elongate accessory slot defined in the exterior face of the seal plate of a depth less than the thickness of the seal plate. 
     Clause 8. The enclosure component of clause 7, further comprising: 
     (e) a first locating slot extending from the first edge of the seal plate inwardly into the thickness of the seal plate toward the second edge; and 
     (f) a second locating slot extending from the second edge of the seal plate inwardly into the thickness of the seal plate toward the first edge. 
     Clause 9. The enclosure component of either clause 7 or clause 8, wherein the exterior face of the seal plate defines at least one elongate locating groove positioned between the accessory slot and the first edge or the second edge. 
     Clause 10. The enclosure component of any one of clause 7, 8 or 9, further comprising a first locating ridge at the first edge of the seal plate proximate to the first locating slot. 
     Clause 11. The enclosure component of clause 10, further comprising a second locating ridge at the second edge of the seal plate proximate to the second locating slot. 
     Clause 12. The enclosure component of any one of clause 7, 8, 9, 10 or 11, wherein the edge reinforcement is selected from the group consisting of laminated strand lumber board and wooden board and the seal plate is foamed polyvinyl chloride. 
     Clause 13. A perimeter board comprising: 
     (a) a planar elongate perimeter plate having an interior face, an opposed first exterior face, a first edge and an opposed second edge; 
     (b) an elongate key on the interior face of the perimeter plate adapted to be received in an elongate accessory slot defined in an exterior face of an elongate seal plate; 
     (c) an elongate clearance slot defined in the interior face of the perimeter plate positioned between the key and the first edge, or between the key and the second edge; and 
     (d) an elongate fastener slot defined in the first exterior face of the perimeter plate. 
     Clause 14. The perimeter board of clause 13, wherein there is an elongate locating groove defined in the portion of the exterior face of the first seal plate defining the fastener slot. 
     Clause 15. The perimeter board of clause 13, wherein the fastener slot is dovetail shaped in cross section. 
     Clause 16. The perimeter board of clause 14, wherein the fastener slot is dovetail shaped in cross section. 
     Clause 17. The perimeter board of clause 13, further comprising an elongate resilient strip snapped into the fastener slot. 
     Clause 18. The perimeter board of either of clause 14 or clause 15, further comprising an elongate resilient strip snapped into the fastener slot. 
     Clause 19. The perimeter board of clause 16, further comprising an elongate resilient strip snapped into the fastener slot. 
     Clause 20. The perimeter board of any one of clause 13, 14, 15, 16, 17, 18 or 19, wherein the perimeter plate is foamed polyvinyl chloride. 
     Clause 21. A perimeter seal assembly comprising: 
     (a) an end cap comprising: 
     (i) a planar elongate seal plate having a first interior face, an opposed first exterior face, a first edge and an opposed second edge, the first interior face adapted to be secured to an edge of an enclosure component; 
     (ii) an elongate seal key on the first interior face of the seal plate; and 
     (iii) an elongate accessory slot defined in the first exterior face; and 
     (b) a perimeter board comprising: 
     (i) a planar elongate perimeter plate having a second interior face and an opposed second exterior face; 
     (ii) the second interior face positioned proximate to the first exterior face, with an elongate accessory key on the second interior face received in the accessory slot defined in the first exterior face; 
     (iii) an elongate fastener slot defined in the second exterior face; and 
     (d) an elongate clearance slot defined in the second interior face of the perimeter plate positioned between the accessory key and the first edge, or between the accessory key and the second edge. 
     Clause 22. The perimeter seal assembly of clause 21, wherein the first exterior face defines at least one elongate locating groove positioned between the accessory slot and the first edge or the second edge. 
     Clause 23. The perimeter seal assembly of clause 22, wherein the clearance slot defined in the second interior face is positioned over the locating groove defined in the first exterior face. 
     Clause 24. The perimeter seal assembly of any one of clause 21, 22 or 23, wherein one or both of the end cap and perimeter board is foamed polyvinyl chloride. 
     Clause 25. A roof skirt board comprising: 
     (a) a planar elongate skirt plate having a first interior face and an opposed first exterior face; 
     (b) an elongate cinch key positioned on the first interior face of the skirt plate and adapted to be received in an elongate accessory slot defined in a second exterior face of a planar elongate seal plate, with the cinch key having a serpentine cross section; and 
     (c) a portion of the first exterior face of the skirt plate defining a fastener slot that is positioned proximate to the cinch key positioned on the first interior face. 
     Clause 26. The roof skirt board of clause 25, wherein there is an elongate locating groove defined in the portion of the first exterior face of the skirt plate defining the fastener slot. 
     Clause 27. The roof skirt board of either of clause 25 or 26, wherein the fastener slot is dovetail shaped in cross section. 
     Clause 28. The roof skirt board of any one of clause 25, 26 or 27, further comprising an elongate resilient strip snapped into the fastener slot. 
     Clause 29. The roof skirt board of any one of clause 25, 26, 27 or 28, wherein the first seal plate is foamed polyvinyl chloride. 
     Clause 30. A roof seal assembly comprising: 
     (a) an end cap comprising: 
     (i) a planar elongate seal plate having a first interior face and an opposed first exterior face, the first interior face adapted to be secured to an edge of an enclosure component; 
     (ii) an elongate seal key on the first interior face; and 
     (iii) an elongate accessory slot defined in the first exterior face; and 
     (b) a roof skirt board comprising: 
     (i) a planar elongate skirt plate having a second interior face and an opposed second exterior face; 
     (ii) the second interior face positioned proximate to the first exterior face, with an elongate cinch key on the second interior face of the skirt plate received in the accessory slot defined in the first exterior face of the seal plate, and with the cinch key having a serpentine cross section; and 
     (iii) an elongate fastener slot defined in the second exterior face of the skirt plate positioned proximate to the cinch key positioned on the second interior face. 
     Clause 31. The roof seal assembly of claim  30  where one or both of the end cap and roof skirt board is foamed polyvinyl chloride. 
     Clause 32. A sealing system for abutting regions of building structure enclosure components, comprising: 
     (a) a planar elongate first seal plate having a first interior face and an opposed first exterior face, the first interior face adapted to be secured to an enclosure component, and the first exterior face defining an elongate seal slot; 
     (b) the first seal plate adapted to mate with a planar elongate second seal plate, with the first exterior face positioned in proximity with a second exterior face of the second seal plate; 
     (c) an elongate resilient compression seal positioned in the elongate seal slot, the elongate resilient compression seal having a hollow seal chamber and comprising: 
     (1) an elongate base; 
     (2) an elongate first seal wall joined to the base, and an opposed elongate second seal wall joined to the base, the first and second seal walls extending away from the base in a diverging relationship; 
     (3) an elongate first arcuate buttress joined to an end of the first seal wall distal from the base, and an elongate second arcuate buttress joined to an end of the second seal wall distal from the base; 
     (4) an elongate planar first seal surface joined to an end of the first arcuate buttress distal from the first seal wall, and an elongate planar second seal surface joined to an end of the second arcuate buttress distal from the second seal wall, the first seal surface and the second seal surface each extending away at an angle from the first arcuate buttress and the second arcuate buttress respectively in a converging relationship; and 
     (5) an elongate seal closure having a first closure end joined to an end of the first seal surface distal from the first arcuate buttress and a second closure end joined to an end of the second seal surface distal from the second arcuate buttress; and 
     wherein the base, the first and second seal walls, the first and second arcuate buttresses, the first and second seal surfaces and the seal closure define the hollow seal chamber. 
     Clause 33. The sealing system of clause 32, wherein the base of the compression seal has an arched section arched inwardly toward the seal chamber. 
     Clause 34. The sealing system of clause 33, wherein the arched section of the base has a first end and an opposed second end, and the base further comprises an elongate first winglet extending from the first end of the arched section and an elongate second winglet extending from the second end of the arched section. 
     Clause 35. The sealing system of any one of clause 32, 33 or 34, wherein the first and second seal walls extend away from the base at a divergence angle θ, where θ&lt;90°. 
     Clause 36. The sealing system of clause 35, wherein the divergence angle θ is in the range of 40°&lt;θ&lt;50°. 
     Clause 37. The sealing system of any one of clause 32, 33, 34, 35 or 36, wherein the first and second seal surfaces extend away from the first arcuate buttress and the second arcuate buttress respectively at a convergence angle δ of about 90°. 
     Clause 38. The sealing system of any one of clause 32, 33, 34, 35, 36 or 37, wherein the seal slot has an elongate planar floor section with a first end and an opposed second end, with a first lateral groove extending away from the first end of the seal slot and a second lateral groove extending away from the second end of the seal slot. 
     Clause 39. The sealing system of clause 34, wherein the seal slot has an elongate planar floor section with a first end and an opposed second end, a first lateral groove extends away from the first end of the seal slot, a second lateral groove extends away from the second end of the seal slot, the first winglet is positioned in the first lateral groove and the second winglet is positioned in the second lateral groove. 
     Clause 40. The sealing system of clause 32, wherein the seal slot is further defined by an elongate first slot wall extending away from the floor section from a first location, an elongate second slot wall extending away from the floor section from an opposed second location, and the first and second slot walls extend away from the floor section in a diverging relationship. 
     Clause 41. The sealing system of clause 40, wherein the first and second slot walls extend away from the floor section at a divergence angle ε, where ε&lt;90°. 
     Clause 42. The sealing system of clause 41, wherein the divergence angle ε is in the range of 40°&lt;ε&lt;50°. 
     Clause 43. The sealing system of clause 35, wherein the seal slot is further defined by an elongate first slot wall extending away from the floor section from a first location, an elongate second slot wall extending away from the floor section from an opposed second location, and the first and second slot walls extend away from the floor section at a divergence angle ε equal to the divergence angle θ. 
     Clause 44. The sealing system of any one of clause 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42 or 43, wherein the seal closure is curved in shape inwardly toward the seal chamber. 
     Clause 45. The sealing system of any one of clause 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43 or 44, wherein the first seal plate is foamed polyvinyl chloride. 
     Clause 46. A seal assembly for abutting regions of building structure enclosure components, comprising: 
     (a) a planar elongate first seal plate having a first interior face, an opposed first exterior face, a first edge and an opposed second edge, the first interior face being adapted to be secured to a first enclosure component, with (i) an elongate first seal slot defined in the first exterior face, and (ii) an elongate interlock slot defined in the first exterior face and positioned distal from the first and second edges; 
     (b) a planar elongate second seal plate having a second interior face and an opposed second exterior face, a first edge and an opposed second edge, the second interior face being adapted to be secured to a second enclosure component, the second seal plate adapted to mate with the first seal plate with the second exterior face in proximity with the first exterior face of the first seal plate; the second seal plate including an elongate interlock key on the second exterior face which is adapted to be received in the interlock slot defined in the first exterior face of the first seal plate when the first and second seal plates mate; and 
     (c) an elongate resilient first compression seal positioned in the elongate first seal slot and adapted to be in pressing contact with the second exterior face of the second seal plate when the first and second seal plates mate, the first compression seal having a hollow seal chamber. 
     Clause 47. The seal assembly of clause 46, wherein the first compression seal (c) comprises: 
     (1) an elongate base; 
     (2) an elongate first seal wall joined to the base, and an opposed elongate second seal wall joined to the base, the first and second seal walls extending away from the base in a diverging relationship; 
     (3) an elongate first buttress joined to an edge of the first seal wall distal from the base, and an elongate second buttress joined to an edge of the second seal wall distal from the base; 
     (4) an elongate planar first seal surface joined to an edge of the first buttress distal from the first seal wall, and an elongate planar second seal surface joined to an edge of the second buttress distal from the second seal wall, the first seal surface and the second seal surface each extending away at an angle from the first buttress and the second buttress respectively in a converging relationship; and 
     (5) an elongate seal closure having a first edge joined to an edge of the first seal surface distal from the first arcuate buttress and a second edge joined to an edge of the second seal surface distal from the second buttress; 
     wherein the base, the first and second seal walls, the first and second buttresses, the first and second seal surfaces and the seal closure define the hollow seal chamber. 
     Clause 48. The sealing system of either of clause 46 or 47, wherein the first exterior face further defines an elongate second seal slot, with the interlock slot positioned between the first seal slot and the second seal slot, and further comprising an elongate resilient second compression seal positioned in the elongate second seal slot and adapted to be in pressing contact with the second exterior face of the second seal plate when the second exterior face is in proximity with the first exterior face, the second compression seal having a hollow seal chamber. 
     Clause 49. The sealing system of any one of clause 46, 47 or 48, further comprising an elongate coupling inset defined in the first exterior face at each of the first and second edges of the first seal plate, an elongate coupling ridge extending from the second exterior face at each of the first and second edges of the second seal plate, the coupling inset at the first edge of the first seal plate adapted to mate with the coupling ridge at the first edge of the second seal plate, and the coupling inset at the second edge of the first seal plate adapted to mate with the coupling ridge at the second edge of the second seal plate, when the first and second seal plates mate. 
     Clause 50. The sealing system of any one of clause 46, 47, 48 or 49, further comprising a series of elongate stepped locating ridges extending from the first interior face at the first edge of the first seal plate. 
     Clause 51. The sealing system of clause 48, wherein the first exterior face of the first seal plate further defines an elongate third seal slot, with the third seal slot positioned between the interlock slot and the second seal slot, and further comprising an elongate resilient third compression seal positioned in the elongate third seal slot and adapted to be in pressing contact with the second exterior face of the second seal plate when the first and second seal plates mate, the third compression seal having a hollow seal chamber. 
     Clause 52. The sealing system of any one of clause 46, 47, 48, 49, 50 or 51, wherein each of the first and second seal plates is foamed polyvinyl chloride. 
     Clause 53. An enclosure component assembly comprising: 
     (a) a first planar laminate having an elongate edge, a first face and an opposed second face; 
     (b) a planar elongate first seal plate having an interior face, an opposed exterior face, a first edge and an opposed second edge, with an elongate interlock slot defined in the first exterior face and positioned distal from the first and second edges; and 
     (c) the interior face of the first seal plate secured to the first face of the planar laminate proximate the edge. 
     Clause 54. The enclosure component assembly of clause 53, further comprising flooring having a flooring thickness disposed on the first face of the first planar laminate, and wherein the first seal plate has a thickness at least equal to the flooring thickness. 
     Clause 55. The enclosure component assembly of clause 53, further comprising: 
     (d) a second planar laminate have an elongate edge, a first face and an opposed second face; 
     (e) a planar elongate second seal plate having a second interior face and an opposed second exterior face, a first edge and an opposed second edge, the second interior face secured to the edge of the second planar laminate and including an interlock key; 
     (f) the first seal plate mating with the second seal plate, with the second exterior face in proximity with the first exterior face and the interlock key received in the interlock slot. 
     Clause 56. The enclosure component assembly of clause 55, further comprising an elongate seal slot defined in the first exterior face of the first seal plate between the interlock slot and the first edge, and an elongate resilient compression seal positioned in the first seal slot in pressing contact with the second exterior face of the second seal plate, the compression seal having a hollow seal chamber. 
     Clause 57. The enclosure component assembly of either of clause 55 or 56, in which either or both of the first and second seal plates is foamed polyvinyl chloride. 
     Clause 58. A folded building structure transportable to a site at which the folded building structure is to be erected, comprising: 
     a fixed space portion defined by (i) a first floor portion, (ii) a first wall component, (iii) a planar fixed wall portion of a second wall component adjoining the first floor portion and the first wall component, the fixed wall portion having a fixed wall portion top edge, and (iii) a first roof portion adjoining the first wall component and the fixed wall portion; 
     a second roof portion horizontally stacked in a second roof portion folded position on the first roof portion and pivotally connected thereto to permit the second roof portion to pivot, about a first horizontal axis relative to the first roof portion, from the second roof portion folded position to a second roof portion unfolded position, the second roof portion having a planar interior surface; 
     a third roof portion horizontally stacked in a third roof portion folded position on the second roof portion and pivotally connected thereto to permit the third roof portion to pivot, about a second horizontal axis relative to the second roof portion, from the third roof portion folded position to a third roof portion unfolded position, the third roof portion having a planar interior surface; 
     a second floor portion vertically positioned in a second floor portion folded position opposite to the first wall component and pivotally connected to the first floor portion to permit the second floor portion to pivot, about a third horizontal axis relative to the first floor portion, from the second floor portion folded position to a second floor portion unfolded position; 
     a third wall component vertically positioned in a third wall component folded position against the second floor portion, the third wall component pivotally connected to the second floor portion to permit the third wall portion to pivot, about a fourth horizontal axis relative to the second floor portion, from the third wall component folded position to a third wall component unfolded position; 
     the second wall component additionally including a planar pivoting wall portion with a pivoting portion top edge, the pivoting wall portion (i) disposed in a pivoting portion folded position against the third wall component in the third wall component folded position and (ii) pivotally connected to the fixed wall portion of the second wall component to permit the pivoting wall portion to pivot, about a vertical axis relative to the fixed wall portion of the second wall component, from the pivoting portion folded position to a pivoting portion unfolded position in which the pivoting portion top edge is positioned under the interior surfaces of the second and third roof portions when the second and third roof portions are in their unfolded positions; 
     a planar elongate first seal plate having a first interior face, an opposed first exterior face, a first edge and an opposed second edge, with an elongate first seal slot defined in the first exterior face, an elongate resilient first compression seal with a hollow seal chamber positioned in the first seal slot, and an elongate first interlock slot defined in the first exterior face and positioned distal from the first and second edges; 
     a planar elongate second seal plate having a second interior face and an opposed second exterior face, and an elongate first interlock key on the second exterior face adapted to be received in the first interlock slot defined in the first exterior face of the first seal plate; 
     one of the first interior face of the first seal plate and the second interior face of the second seal plate secured to the pivoting portion top edge; 
     the other of the first interior face of the first seal plate and the second interior face of the second seal plate secured to the interior surface of the second roof portion at a position so that when the pivoting wall portion and the second roof portion are in their respective unfolded positions, the first seal plate mates with the second seal plate, with the first interlock key received in the first interlock slot, and the first compression seal in pressing contact with the second exterior face of the second seal plate. 
     Clause 59. The folded building structure of clause 58, wherein the first seal slot defined in the first exterior face is positioned between one of the first interlock slot and the first edge, and the first interlock slot and the second edge, and wherein the first exterior face further defines an elongate second seal slot positioned between the other of the first interlock slot and the first edge, and there is an elongate resilient second compression seal with a hollow seal chamber positioned in the second seal slot, so that when the first seal plate mates with the second seal plate, the second compression seal is in pressing contact with the second exterior face of the second seal plate. 
     Clause 60. The folded building structure of clause 58, wherein the second interior face of the second seal plate is secured to the pivoting portion top edge, and the folded building structure further comprises: 
     a planar elongate third seal plate having a third interior face, an opposed third exterior face, and an elongate second interlock key on the second exterior face adapted to be received in the first interlock slot defined in the first exterior face of the first seal plate; 
     the fixed wall portion of the first wall component having a fixed wall portion top edge that is positioned under the interior surface of the second roof portion when the second roof portion is in the second roof portion unfolded position; 
     the third interior face of the third seal plate secured to the fixed wall portion top edge; and 
     the first interior face of the first seal plate secured to the interior surface of the second roof portion at a position so that when the second roof portion is in the second roof portion unfolded position, the third seal plate mates with the first seal plate, with the second interlock key received in the first interlock slot and the first compression seal in pressing contact with the third exterior face of the third seal plate. 
     Clause 61. The folded building structure of clause 58, wherein the second interior face of the second seal plate is secured to the pivoting portion top edge, and the folded building structure further comprises: 
     a planar elongate fourth seal plate having a fourth interior face, an opposed fourth exterior face, a third edge and an opposed fourth edge, with an elongate second seal slot defined in the fourth exterior face, an elongate resilient second compression seal with a hollow seal chamber positioned in the second seal slot, and an elongate second interlock slot defined in the fourth exterior face and positioned distal from the third and fourth edges; 
     the fourth interior face of the fourth seal plate secured to the interior surface of the third roof portion at a position so that when the pivoting wall portion and the third roof portion are in their respective unfolded positions, the fourth seal plate mates with the second seal plate, with the first interlock key received in the second interlock slot, and the second compression seal in pressing contact with the second exterior face of the second seal plate. 
     Clause 62. The folded building structure of clause 58, further comprising: 
     a planar elongate fifth seal plate having a fifth interior face, an opposed fifth exterior face, a fifth edge and an opposed sixth edge, with an elongate third seal slot defined in the fifth exterior face, an elongate resilient third compression seal with a hollow seal chamber positioned in the third seal slot, and an elongate third interlock slot defined in the fifth exterior face and positioned distal from the fifth and sixth edges; 
     a planar elongate sixth seal plate having a sixth interior face and an opposed sixth exterior face, and an elongate third interlock key on the sixth exterior face adapted to be received in the third interlock slot defined in the fifth exterior face of the fifth seal plate; 
     the third wall component having a third wall component top edge; 
     the sixth interior face of the sixth seal plate secured to the third wall component top edge; 
     the fifth interior face of the fifth seal plate secured to the interior surface of the third roof portion at a position so that when the second floor portion, the third wall component and the third roof portion are in their respective unfolded positions: (i) the fifth seal plate mates with the sixth seal plate, (ii) the third interlock key is received in the third interlock slot, and (iii) the third compression seal is in pressing contact with the sixth exterior face of the sixth seal plate. 
     Clause 63. A folded building structure transportable to a site at which the folded building structure is to be erected, comprising: 
     a fixed space portion defined by (i) a floor portion, (ii) a first wall component, (iii) a planar fixed wall portion of a second wall component adjoining the floor portion and the first wall component, and (iii) a first roof portion adjoining the first wall component and the fixed wall portion, the first roof portion having a first interior edge; 
     a second roof portion having a second interior edge and an opposed third interior edge, the second roof portion horizontally stacked in a second roof portion folded position on the first roof portion and pivotally connected between the second and first interior edges thereof to permit the second roof portion to pivot, about a first horizontal axis relative to the first roof portion, from the second roof portion folded position to a second roof portion unfolded position; 
     a third roof portion having a fourth interior edge, the third roof horizontally stacked in a third roof portion folded position on the second roof portion and pivotally connected between the fourth and third interior edges thereof to permit the third roof portion to pivot, about a second horizontal axis relative to the second roof portion, from the third roof portion folded position to a third roof portion unfolded position, the third roof portion having a planar interior surface; 
     the second wall component additionally including a planar pivoting wall portion with a pivoting portion top edge, the pivoting wall portion (i) disposed in a pivoting portion folded position opposite to the first wall component, and (ii) pivotally connected to the fixed wall portion of the second wall component to permit the pivoting wall portion to pivot, about a vertical axis relative to the fixed wall portion of the second wall component, from the pivoting portion folded position to a pivoting portion unfolded position in which the pivoting portion top edge is positioned under the interior surfaces of the second and third roof portions when the second and third roof portions are in their unfolded positions; 
     a planar elongate first seal plate having a first interior face, an opposed first exterior face, a first edge and an opposed second edge, with an elongate first seal slot defined in the first exterior face, an elongate resilient first compression seal with a hollow seal chamber positioned in the first seal slot, and an elongate first interlock slot defined in the first exterior face and positioned distal from the first and second edges; 
     a planar elongate second seal plate having a second interior face and an opposed second exterior face, and an elongate first interlock key on the second exterior face adapted to be received in the first interlock slot defined in the first exterior face of the first seal plate; 
     the first interior face of the first seal plate secured to one of the first and second interior edges; 
     the second interior face of the second seal plate secured to the other of the first and second interior edges so that when the second roof portion is in the unfolded position, the first seal plate mates with the second seal plate, with the first interlock key received in the first interlock slot, and the first compression seal in pressing contact with the second exterior face of the second seal plate. 
     Clause 64. The folded building structure of clause 63, further comprising: 
     a planar elongate third seal plate having a third interior face, an opposed third exterior face, a third edge and an opposed fourth edge, with an elongate second seal slot defined in the third exterior face, an elongate resilient second compression seal with a hollow seal chamber positioned in the second seal slot, and an elongate second interlock slot defined in the third exterior face and positioned distal from the third and fourth edges; 
     a planar elongate fourth seal plate having a fourth interior face and an opposed fourth exterior face, and an elongate second interlock key on the fourth exterior face adapted to be received in the second interlock slot defined in the third exterior face of the third seal plate; 
     the third interior face of the third seal plate secured to one of the third and fourth interior edges; 
     the fourth interior face of the fourth seal plate secured to the other of the third and fourth interior edges so that when the third roof portion is in the unfolded position, the third seal plate is mates with the fourth seal plate, with the second interlock key received in the second interlock slot, and the second compression seal in pressing contact with the fourth exterior face of the fourth seal plate. 
     Clause 65. The folded building structure of either of clause 63 or 64, wherein the first seal slot defined in the first exterior face is positioned between one of the first interlock slot and the first edge, and the first interlock slot and the second edge, and wherein the first exterior face further defines an elongate third seal slot and an elongate fourth seal slot, each of the third and fourth seal slots is positioned between the other of the first interlock slot and the first edge, and the first interlock slot and the second edge, an elongate resilient third compression seal with a hollow seal chamber positioned in the third seal slot, and an elongate resilient fourth compression seal with a hollow seal chamber positioned in the fourth seal slot, so that when the second roof portion is in the unfolded position the third and fourth compression seals are in pressing contact with the second exterior face of the second seal plate. 
     Clause 66. The folded building structure of clause 64, wherein the second seal slot defined in the third exterior face is positioned between one of the second interlock slot and the third edge, and the second interlock slot and the fourth edge, and wherein the third exterior face further defines an elongate fifth seal slot and an elongate sixth seal slot, each of the fifth and sixth seal slots is positioned between the other of the second interlock slot and the third edge, and the second interlock slot and the fourth edge, an elongate resilient fifth compression seal with a hollow seal chamber positioned in the fifth seal slot, and an elongate resilient sixth compression seal with a hollow seal chamber positioned in the sixth seal slot, so that when the third roof portion is in the unfolded position the fifth and sixth compression seals are in pressing contact with the fourth exterior face of the fourth seal plate. 
     Clause 67. A folded building structure transportable to a site at which the folded building structure is to be erected, comprising: 
     a fixed space portion defined by (i) a floor portion, (ii) a first wall component, (iii) a planar fixed wall portion of a second wall component adjoining the first floor portion and the first wall component, the fixed wall portion having a fixed wall portion interior edge, and (iii) a roof portion adjoining the first wall component and the fixed wall portion; 
     the second wall component additionally including a planar pivoting wall portion with a pivoting portion interior edge, the pivoting wall portion (i) disposed in a pivoting portion folded position opposite to the first wall component, and (ii) pivotally connected to the fixed wall portion of the second wall component to permit the pivoting wall portion to pivot, about a vertical axis relative to the fixed wall portion of the second wall component, from the pivoting portion folded position to a pivoting portion unfolded position; 
     a planar elongate first seal plate having a first interior face, an opposed first exterior face, a first edge and an opposed second edge, with an elongate first seal slot defined in the first exterior face, an elongate resilient first compression seal with a hollow seal chamber positioned in the first seal slot, and an elongate first interlock slot defined in the first exterior face and positioned distal from the first and second edges; 
     a planar elongate second seal plate having a second interior face and an opposed second exterior face, and an elongate first interlock key on the second exterior face adapted to be received in the first interlock slot defined in the first exterior face of the first seal plate; 
     the second interior face of the second seal plate secured to one of the fixed portion interior edge and the pivoting portion interior edge; 
     the first interior face of the first seal plate secured to the other of the fixed portion interior edge and the pivoting portion interior edge so that when the pivoting wall portion is in its unfolded position, the first seal plate mates with the second seal plate, with the first interlock key received in the first interlock slot, and the first compression seal in pressing contact with the second exterior face of the second seal plate. 
     Clause 68. The folded building structure of clause 67, wherein the first seal slot defined in the first exterior face is positioned between one of the first interlock slot and the first edge, and the first interlock slot and the second edge, and wherein the first exterior face further defines an elongate second seal slot positioned between the other of the first interlock slot and the first edge, and there is an elongate resilient second compression seal with a hollow seal chamber positioned in the second seal slot, so that when the pivoting portion is in the unfolded position the second compression seal is in pressing contact with the second exterior face of the second seal plate. 
     Clause 69. A folded building structure transportable to a site at which the folded building structure is to be erected, comprising: 
     a fixed space portion defined by (i) a first floor portion, (ii) a first wall component, (iii) a planar fixed wall portion of a second wall component adjoining the first floor portion and the first wall component, and (iii) a first roof portion adjoining the first wall component and the fixed wall portion; 
     a second floor portion vertically positioned in a second floor portion folded position opposite to the first wall component and pivotally connected to the first floor portion to permit the second floor portion to pivot, about a first horizontal axis relative to the first floor portion, from the second floor portion folded position to a second floor portion unfolded position, the second floor portion including an interior surface; 
     a third wall component having a third wall component lower edge and vertically positioned in a third wall component folded position against the second floor portion, the third wall component pivotally connected to the second floor portion proximate to the third wall component lower edge to permit the third wall portion to pivot, about a second horizontal axis relative to the second floor portion, from the third wall component folded position to a third wall component unfolded position; 
     a planar elongate first seal plate having a first interior face, an opposed first exterior face, a first edge and an opposed second edge, with an elongate first seal slot defined in the first exterior face, an elongate resilient first compression seal with a hollow seal chamber positioned in the first seal slot, and an elongate first interlock slot defined in the first exterior face and positioned distal from the first and second edges; 
     a planar elongate second seal plate having a second interior face and an opposed second exterior face, and an elongate first interlock key on the second exterior face adapted to be received in the first interlock slot defined in the first exterior face of the first seal plate; 
     one of the first interior face of the first seal plate and the second interior face of the second seal plate secured to the third wall component lower edge; 
     the other of the first interior face of the first seal plate and the second interior face of the second seal plate secured to the interior surface of the second floor portion at a position so that when the second floor portion and the third wall component are in their respective unfolded positions, the first seal plate mates with the second seal plate, with the first interlock key received in the first interlock slot, and the first compression seal in pressing contact with the second exterior face of the second seal plate. 
     Clause 70. The folded building structure of clause 69, wherein the first seal slot defined in the first exterior face is positioned between one of the first interlock slot and the first edge, and the first interlock slot and the second edge, and wherein the first exterior face further defines an elongate second seal slot positioned between the other of the first interlock slot and the first edge, and there is an elongate resilient second compression seal with a hollow seal chamber positioned in the second seal slot, so that when the pivoting portion is in the unfolded position the second compression seal is in pressing contact with the second exterior face of the second seal plate. 
     Clause 71. A folded building structure transportable to a site at which the folded building structure is to be erected, comprising: 
     a fixed space portion defined by (i) a first floor portion, (ii) a first wall component, (iii) a planar fixed wall portion of a second wall component adjoining the first floor portion and the first wall component, and (iii) a first roof portion adjoining the first wall component and the fixed wall portion; 
     a second roof portion horizontally stacked in a second roof portion folded position on the first roof portion and pivotally connected thereto to permit the second roof portion to pivot, about a first horizontal axis relative to the first roof portion, from the second roof portion folded position to a second roof portion unfolded position, the second roof portion having a planar interior surface; 
     third roof portion horizontally stacked in a third roof portion folded position on the second roof portion and pivotally connected thereto to permit the third roof portion to pivot, about a second horizontal axis relative to the second roof portion, from the third roof portion folded position to a third roof portion unfolded position, the third roof portion having a planar interior surface; 
     a second floor portion vertically positioned in a second floor portion folded position opposite to the first wall component and pivotally connected to the first floor portion to permit the second floor portion to pivot, about a third horizontal axis relative to the first floor portion, from the second floor portion folded position to a second floor portion unfolded position, the second floor portion including an interior surface; 
     a third wall component having a third wall component lower edge and an opposed third wall component upper edge and vertically positioned in a third wall component folded position against the second floor portion, the third wall component pivotally connected to the second floor portion proximate to the third wall component lower edge to permit the third wall portion to pivot, about a fourth horizontal axis relative to the second floor portion, from the third wall component folded position to a third wall component unfolded position; 
     a planar elongate first seal plate having a first interior face, an opposed first exterior face, a first edge and an opposed second edge, with an elongate first seal slot defined in the first exterior face, an elongate resilient first compression seal with a hollow seal chamber positioned in the first seal slot, and an elongate first interlock slot defined in the first exterior face and positioned distal from the first and second edges; 
     a planar elongate second seal plate having a second interior face and an opposed second exterior face, and an elongate first interlock key on the second exterior face adapted to be received in the first interlock slot defined in the first exterior face of the first seal plate; 
     one of the first interior face of the first seal plate and the second interior face of the second seal plate secured to the third wall component upper edge; 
     the other of the first interior face of the first seal plate and the second interior face of the second seal plate secured to the interior surface of the third roof portion at a position so that when the second floor portion, the third wall component and the third roof portion are in their respective unfolded positions, the first seal plate mates with the second seal plate, with the first interlock key received in the first interlock slot, and the first compression seal in pressing contact with the second exterior face of the second seal plate. 
     Clause 72. The folded building structure of clause 71, wherein the first seal slot defined in the first exterior face is positioned between one of the first interlock slot and the first edge, and the first interlock slot and the second edge, and wherein the first exterior face further defines an elongate second seal slot positioned between the other of the first interlock slot and the first edge, and there is an elongate resilient second compression seal with a hollow seal chamber positioned in the second seal slot, so that when the first seal plate mates with the second seal plate, the second compression seal is in pressing contact with the second exterior face of the second seal plate. 
     Clause 73. A folded building structure transportable to a site at which the folded building structure is to be erected, comprising: 
     a fixed space portion defined by (i) a first floor portion having a first floor portion interior edge, (ii) a first wall component, (iii) a planar fixed wall portion of a second wall component adjoining the first floor portion and the first wall component, and (iii) a first roof portion adjoining the first wall component and the fixed wall portion; 
     a second floor portion having a second floor portion interior edge and vertically positioned in a second floor portion folded position opposite to the first wall component, the second floor portion pivotally connected to the first floor portion between the first floor portion interior edge and the second floor portion interior edge to permit the second floor portion to pivot, about a horizontal axis relative to the first floor portion, from the second floor portion folded position to a second floor portion unfolded position; 
     a planar elongate first seal plate having a first interior face, an opposed first exterior face, a first edge and an opposed second edge, with an elongate first seal slot defined in the first exterior face, an elongate resilient first compression seal with a hollow seal chamber positioned in the first seal slot, and an elongate first interlock slot defined in the first exterior face and positioned distal from the first and second edges; 
     a planar elongate second seal plate having a second interior face and an opposed second exterior face, and an elongate first interlock key on the second exterior face adapted to be received in the first interlock slot defined in the first exterior face of the first seal plate; 
     the second interior face of the second seal plate secured to one of the first floor portion interior edge and the second floor portion interior edge; 
     the first interior face of the first seal plate secured to the other of the first floor portion interior edge and the second floor portion interior edge so that when the second floor portion is in its unfolded position, the first seal plate mates with the second seal plate, with the first interlock key received in the first interlock slot, and the first compression seal in pressing contact with the second exterior face of the second seal plate. 
     Clause 74. The folded building structure of clause 73, wherein the first seal slot defined in the first exterior face is positioned between one of the first interlock slot and the first edge, and the first interlock slot and the second edge, and wherein the first exterior face further defines an elongate third seal slot and an elongate fourth seal slot, each of the third and fourth seal slots positioned between the other of the first interlock slot and the first edge, and the first interlock slot and the second edge, with an elongate resilient third compression seal with a hollow seal chamber positioned in the third seal slot, and an elongate resilient fourth compression seal with a hollow seal chamber positioned in the fourth seal slot, so that when the first seal plate mates with the second seal plate the third and fourth compression seals are in pressing contact with the second exterior face of the second seal plate. 
     Clause 75. A sealing system for abutting regions of enclosure components for a building structure, comprising: 
     (a) a planar elongate first seal plate having a first interior face and an opposed first exterior face, the first interior face being adapted to be secured to a first enclosure component, and the first exterior face defining an elongate seal slot; the first seal plate adapted to mate with a planar elongate second seal plate by lateral movement of a second exterior face of the second seal plate relative to the first exterior face of the first seal plate; 
     (c) an elongate resilient shear seal positioned in the elongate seal slot, the elongate resilient shear seal having a hollow seal chamber and comprising: 
     (1) an elongate base; 
     (2) an elongate first seal wall joined to the base, and an opposed elongate second seal wall joined to the base, the first and second seal walls extending away from the base in a diverging relationship; 
     (3) an elongate seal support having an arcuate region joined to an end of the first seal wall distal from the base; 
     (4) an elongate planar seal closure joined to an end of the second seal wall distal from the base; 
     (5) an elongate planar cantilevered seal surface joined to the seal closure distal from the second seal wall at a shear seal junction, the cantilevered seal surface oriented at an upward angle β relative to the base and terminating at a free end; and 
     (6) an end of the seal support distal from the first seal wall joined either to the shear seal junction, or to the elongate planar cantilevered seal surface proximate to the shear seal junction, thereby defining the hollow seal chamber. 
     Clause 76. The sealing system of clause 75, wherein the base of the shear seal is planar. 
     Clause 77. The sealing system of either of clause 75 or 76, wherein the base has a first end and an opposed second end, and there is an elongate first winglet extending from the first end of the base and an elongate second winglet extending from the second end of the base. 
     Clause 78. The sealing system of any one of clause 75, 76 or 77, wherein the first and second seal walls extend away from the base at a divergence angle λ, where λ&lt;90°. 
     Clause 79. The sealing system of clause 78, wherein the divergence angle λ is in the range of 40°&lt;λ&lt;50°. 
     Clause 80. The sealing system of clause 76, wherein the seal closure is oriented at an angle of inclination a relative to the planar base. 
     Clause 81. The sealing system of clause 80, wherein β&gt;α. 
     Clause 82. The sealing system of any one of clause 75, 76, 77, 78, 79, 80 or 81, wherein the seal slot has an elongate planar floor section with a first end and an opposed second end, a first lateral groove extends away from the first end of the seal slot and a second lateral groove extends away from the second end of the seal slot. 
     Clause 83. The sealing system of clause 77, wherein the seal slot has a elongate planar floor section with a first end and an opposed second end, a first lateral groove extends away from the first end of the seal slot, a second lateral groove extends away from the second end of the seal slot, the first winglet is positioned in the first lateral groove and the second winglet is positioned in the second lateral groove. 
     Clause 84. The sealing system of any one of clause 75, 76, 77, 78, 79, 80 or 81, wherein the seal slot has an elongate floor section, and the seal slot is further defined by a first elongate slot wall extending away from the floor section from a first location, a second elongate slot wall extending away from the floor section from an opposed second location, and the first and second slot walls extend away from the floor section in a diverging relationship. 
     Clause 85. The sealing system of clause 84, wherein the first and second slot walls extend away from the floor section at a divergence angle ε, where ε&lt;90°. 
     Clause 86. The sealing system of clause 85, wherein the divergence angle ε is in the range of 40°&lt;ε&lt;50°. 
     Clause 87. The sealing system of clause 78, wherein the seal slot has an elongate floor section, and the seal slot is further defined by a first elongate slot wall extending away from the floor section from a first location, a second elongate slot wall extending away from the floor section from an opposed second location, and the first and second slot walls extend away from the floor section at a divergence angle ε equal to the divergence angle λ. 
     Clause 88. The sealing system of any one of clause 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86 or 87, wherein the seal plate is foamed polyvinyl chloride. 
     Clause 89. An interlock seal component comprising: 
     (a) a planar elongate first seal plate having a first interior face, an opposed first exterior face, a first edge and an opposed second edge, the first interior face adapted to be secured to an enclosure component; 
     (b) an elongate key on the interior face of the seal plate; and 
     (c) the exterior face being inclined at an angle relative to the interior face. 
     Clause 90. The interlock seal component of clause 89, further comprising an elongate first seal slot defined in the first exterior face of the seal plate proximate the first edge. 
     Clause 91. The interlock seal component of clause 90, further comprising a step-down, in the direction moving from the first edge to the second edge, on the first exterior face between the first seal slot and the second edge. 
     Clause 92. An interlock seal component comprising: 
     (a) a planar elongate first seal plate having a first interior face, an opposed first exterior face, a first edge and an opposed second edge, the first interior face being adapted to be secured to a first enclosure component; 
     (b) an elongate first seal slot defined in the first exterior face of the seal plate proximate the first edge; and 
     (c) the first exterior face being inclined at an angle relative to the interior face. 
     Clause 93. The interlock seal component of clause 92, further comprising one of a step-up and a step-down on the first exterior face positioned between the first seal slot and the second edge. 
     Clause 94. An interlock seal assembly comprising: 
     (a) a planar elongate first seal plate having a first interior face, an opposed first exterior face, a first edge, an opposed second edge and a first thickness, the first interior face being adapted to be secured to a first enclosure component; 
     (b) an elongate first seal slot defined in the first exterior face of the first seal plate proximate the first edge; and 
     (c) the first exterior face being inclined at an angle γ relative to the first interior face so that the first thickness decreases with increasing distance from the first edge; 
     (d) a planar elongate second seal plate having a second interior face, an opposed second exterior face, a third edge, an opposed fourth edge and a second thickness, the second interior face being adapted to be secured to a second enclosure component; 
     (e) an elongate second seal slot defined in the second exterior face of the second seal plate proximate the fourth edge; 
     (f) the second exterior face being inclined at the angle γ relative to the second interior face so that the second thickness increases with increasing distance from the third edge; and 
     (g) the first seal plate adapted to mate with the second seal plate by lateral movement of the first exterior face relative to the second exterior face so that when mated the first exterior face is in proximity with the second exterior face, with the first edge proximate to the third edge and the second edge proximate to the fourth edge. 
     Clause 95. The interlock seal assembly of clause 94, further comprising: 
     (h) a first shear seal having a hollow seal chamber and a first cantilevered seal surface, the first shear seal positioned in the first seal slot; 
     (i) a second shear seal having a hollow seal chamber and a second cantilevered seal surface, the second shear seal positioned in the second seal slot; and 
     (j) the first and second shear seals respectively positioned in the first and second seal slots so that the first and second cantilevered seal surfaces are oppositely oriented away from each other. 
     Clause 96. The interlock seal assembly of either of clause 94 or 95, further comprising a step-down, in the direction moving from the first edge to the second edge, on the first exterior face, in proximity to a step-up, in the direction moving from the third edge to the fourth edge, on the second exterior face. 
     Clause 97. An enclosure component assembly comprising: 
     (a) a first planar laminate having an elongate laminate edge, a first face and an opposed second face; 
     (b) a planar elongate first seal plate having a first interior face, an opposed first exterior face, a first edge, an opposed second edge and a first thickness; 
     (c) the first exterior face being inclined at an angle γ relative to the first interior face so that the first thickness increases with increasing distance from the first edge; and 
     (d) the first interior face of the first seal plate secured to the first face of the planar laminate parallel to the laminate edge, with the second edge proximate to the laminate edge. 
     Clause 98. The enclosure component assembly of clause 97, further comprising: 
     (e) a second planar laminate have an elongate edge, a first face and an opposed second face; 
     (f) a planar elongate second seal plate having a second interior face and an opposed second exterior face, a third edge and an opposed fourth edge, the second interior face secured to the edge of the second planar laminate, the first and second seal plates mated with the first exterior face in proximity with the second exterior face, the first edge proximate the third edge and the second edge proximate the fourth edge; and 
     (g) the second exterior face being inclined at the angle γ relative to the second interior face so that the second thickness increases with increasing distance from the fourth edge. 
     Clause 99. The enclosure component assembly of clause 98, further comprising flooring having a flooring thickness disposed on the first face of the first planar laminate, and wherein the first seal plate has a thickness at least equal to the flooring thickness. 
     Clause 100. The enclosure component assembly of either of clause 98 or 99, further comprising: 
     (g) an elongate first seal slot defined in the first exterior face of the first seal plate proximate the second edge; and 
     (h) an elongate second seal slot defined in the second exterior face of the second seal plate proximate the third edge. 
     Clause 101. The enclosure component assembly of clause 100, further comprising: 
     (i) a first shear seal having a hollow seal chamber and a first cantilevered seal surface, the first shear seal positioned in the first seal slot; 
     (j) a second shear seal having a hollow seal chamber and a second cantilevered seal surface, the second shear seal positioned in the second seal slot; and 
     (k) the first and second shear seals respectively positioned in the first and second seal slots so that the first and second cantilevered seal surfaces are oppositely oriented away from each other. 
     Clause 102. The enclosure component assembly of any one of clause 98, 99, 100 or 101, having a step-up, in the direction moving from the first edge to the second edge, on the first exterior face in proximity with a step-down on the second exterior face, in the direction moving from the third edge to the fourth edge. 
     Clause 103. The enclosure component assembly of clause 102, wherein the step-up is positioned between the first seal slot and the first edge, and the step-down is positioned between the second seal slot and the fourth edge. 
     Clause 104. The enclosure component assembly of any one of clause 98, 99, 100, 101, 102 or 103, wherein either or both of the first and second seal plates is foamed polyvinyl chloride. 
     Clause 105. A folded building structure transportable to a site at which the folded building structure is to be erected, comprising: 
     a fixed space portion defined by (i) a first floor portion, (ii) a first wall component, (iii) a planar fixed wall portion of a second wall component adjoining the first floor portion and the first wall component, the fixed wall portion having a fixed wall portion top edge, and (iii) a first roof portion adjoining the first wall component and the fixed wall portion; 
     a second floor portion vertically positioned in a second floor portion folded position opposite to the first wall component and pivotally connected to the first floor portion to permit the second floor portion to pivot, about a horizontal axis relative to the first floor portion, from the second floor portion folded position to a second floor portion unfolded position, the second floor portion having an interior surface and the first and second floor portions defining an exterior floor edge when the second floor portion is in the second floor portion unfolded position; 
     the second wall component additionally including a planar pivoting wall portion with a pivoting portion bottom edge, the pivoting wall portion (i) disposed in a pivoting portion folded position against the third wall component in the third wall component folded position and (ii) pivotally connected to the fixed wall portion of the second wall component to permit the pivoting wall portion to pivot, about a vertical axis relative to the fixed wall portion of the second wall component, from the pivoting portion folded position to a pivoting portion unfolded position in which at least a segment of the pivoting portion bottom edge is positioned over a select region of the interior surface of the second floor portion proximate to the exterior floor edge when the second floor portion is in the second floor portion unfolded position; 
     a planar elongate first seal plate having a first interior face, an opposed first exterior face, a first thickness, a first edge and an opposed second edge, with an elongate first seal slot defined in the first exterior face proximate to the first edge; 
     a planar elongate second seal plate having a second interior face, an opposed second exterior face, a second thickness, a third edge and an opposed fourth edge, with an elongate second seal slot defined in the second exterior face proximate to the fourth edge; 
     an elongate resilient first shear seal having a hollow seal chamber and an elongate first cantilevered seal surface terminating at a free end, the first shear seal positioned in the first seal slot, with the first cantilevered seal surface oriented toward the first edge, and an elongate resilient second shear seal having a hollow seal chamber and an elongate second cantilevered seal surface terminating at a free end, the second shear seal positioned in the second seal slot, with the second cantilevered seal surface oriented toward the fourth edge; 
     the second interior face of the second seal plate secured to the select region of the interior surface of the second floor portion, with the fourth edge of the second seal plate proximate to the exterior floor edge when the second floor portion is in the second floor portion unfolded position; 
     the first interior face of the first seal plate secured to the pivoting portion bottom edge with the second edge proximate to the exterior floor edge when the second floor portion is in the second floor portion unfolded position and the pivoting wall portion is in the pivoting wall portion unfolded position, so that when the second floor portion and the pivoting wall portion are in their respective unfolded positions, the first seal plate mates with the second seal plate, with the first edge being proximate to the third edge, the first cantilevered seal surface in pressing contact with the exterior face of the second seal plate, and the second cantilevered seal surface in pressing contact with the exterior face of the first seal plate. 
     Clause 106. The folded building structure of clause 105, wherein a segment of the pivoting wall portion is positioned over a select region of the interior surface of the first floor portion proximate to the exterior floor edge when the pivoting wall portion is in the pivoting wall portion unfolded position and the second floor portion is in the second floor portion unfolded position, and the folded building structure further comprises: 
     a planar elongate third seal plate having a third interior face, an opposed third exterior face, a third thickness, a fifth edge and an opposed sixth edge, with an elongate third seal slot defined in the third exterior face proximate to the sixth edge; 
     an elongate resilient third shear seal having a hollow seal chamber and a third cantilevered seal surface terminating at a free end, the third shear seal positioned in the third seal slot, with the third cantilevered seal surface oriented toward the sixth edge; 
     the third interior face of the third seal plate secured to the select region of the interior surface of the first floor portion so that when the pivoting wall portion is in the pivoting wall portion unfolded position, the fifth edge is proximate to the first edge, and the third seal plate mates with the first seal plate, with the third cantilevered seal surface in pressing contact with the first exterior face of the first seal plate. 
     Clause 107 The folded building structure of either of clause 105 or 106, wherein the first exterior face is inclined at an angle γ relative to the first interior face so that the first thickness increases with increasing distance from the first edge, and the second exterior face being inclined at the angle γ relative to the second interior face so that the second thickness decreases with increasing distance from the fourth edge. 
     Clause 108. The folded building structure of any one of clause 105, 106 or 107, where the first and second cantilevered seal surfaces are each oriented at an upward angle β. 
     Clause 109. The folded building structure of clause 106, wherein the first exterior face is inclined at an angle γ relative to the first interior face so that the first thickness decreases with increasing distance from the first edge, the second exterior face being inclined at the angle γ relative to the second interior face so that the second thickness increases with increasing distance from the third edge, and the third exterior face being inclined at the angle γ relative to the third interior face so that the third thickness increases with increasing distance from the fifth edge. 
     Clause 110. The folded building structure of clause 106, wherein the first and second cantilevered seal surfaces are each oriented at an upward angle R. 
     Clause 111. The folded building structure of either of clause 106 or 110, wherein the third cantilevered seal surface is oriented at the upward angle R. 
     Clause 112. The folded building structure of clause 105, wherein there is a step-down, in the direction moving from the first edge to the second edge, on the first exterior face which is in proximity with a step-up, in the direction moving from the third edge to the fourth edge, on the second exterior face when the pivoting wall portion is in the pivoting portion unfolded position. 
     Clause 113. A folded building structure transportable to a site at which the folded building structure is to be erected, comprising: 
     a fixed space portion defined by (i) a first floor portion, (ii) a first wall component, (iii) a planar fixed wall portion of a second wall component adjoining the first floor portion and the first wall component, and (iii) a roof portion adjoining the first wall component and the fixed wall portion; 
     a second floor portion vertically positioned in a second floor portion folded position opposite to the first wall component and pivotally connected to the first floor portion to permit the second floor portion to pivot, about a first horizontal axis relative to the first floor portion, from the second floor portion folded position to a second floor portion unfolded position; 
     a third wall component vertically positioned in a third wall component folded position against the second floor portion, the third wall component pivotally connected to the second floor portion to permit the third wall portion to pivot, about a second horizontal axis relative to the second floor portion, from the third wall component folded position to a third wall component unfolded position, the third wall component having an interior surface and an exterior wall edge; 
     the second wall component additionally including a planar pivoting wall portion with a pivoting portion vertical edge, the pivoting wall portion (i) disposed in a pivoting portion folded position against the third wall component in the third wall component folded position and (ii) pivotally connected to the fixed wall portion of the second wall component to permit the pivoting wall portion to pivot, about a vertical axis relative to the fixed wall portion of the second wall component, from the pivoting portion folded position to a pivoting portion unfolded position in which the pivoting portion vertical edge is positioned adjacent to a select region of the interior surface of the third wall component proximate to the exterior wall edge when the second floor portion and the third call components are in their unfolded positions; 
     a planar elongate first seal plate having a first interior face, an opposed first exterior face, a first thickness, a first edge and an opposed second edge, with an elongate first seal slot defined in the first exterior face proximate to the first edge; 
     a planar elongate second seal plate having a second interior face, an opposed second exterior face, a second thickness, a third edge and an opposed fourth edge, with an elongate second seal slot defined in the second exterior face proximate to the fourth edge; 
     an elongate resilient first shear seal having a hollow seal chamber and an elongate first cantilevered seal surface terminating at a free end, the first shear seal positioned in the first seal slot, with the first cantilevered seal surface oriented toward the first edge, and an elongate resilient second shear seal having a hollow seal chamber and an elongate second cantilevered seal surface terminating at a free end, the second shear seal positioned in the second seal slot, with the second cantilevered seal surface oriented toward the fourth edge; 
     the second interior face of the second seal plate secured to the select region of the interior surface of the third wall component, with the fourth edge of the second seal plate proximate to the exterior wall edge of the third wall component; 
     the first interior face of the first seal plate secured to the pivoting portion vertical edge with the second edge proximate to the exterior wall edge of the third wall component when the second floor portion is in the second floor portion unfolded position, the third wall component is in the third wall component unfolded position and the pivoting wall portion is in the pivoting wall portion unfolded position, so that when the second floor portion, the third wall component and the pivoting wall portion are in their respective unfolded positions, the first seal plate mates with the second seal plate, with the first edge being proximate to the third edge, the first cantilevered seal surface in pressing contact with the exterior face of the second seal plate, and the second cantilevered seal surface in pressing contact with the exterior face of the first seal plate. 
     Clause 114. The folded building structure of clause 113, wherein the first exterior face is inclined at an angle γ relative to the first interior face so that the first thickness increases with increasing distance from the first edge, and the second exterior face being inclined at the angle γ relative to the second interior face so that the second thickness decreases with increasing distance from the fourth edge. 
     Clause 115. The folded building structure of clause 113, wherein the first and second cantilevered seal surfaces are each oriented at an upward angle R. 
     Clause 116. The folded building structure of clause 113, wherein there is a step-down, in the direction moving from the first edge to the second edge, on the first exterior face which is in proximity with a step-up, in the direction moving from the third edge to the fourth edge, on the second exterior face when the pivoting wall portion is in the pivoting portion unfolded position. 
     Clause 117. The folded building structure of any one of clauses 58-74, wherein the first compression seal comprises: 
     (1) an elongate base; 
     (2) an elongate first seal wall joined to the base, and an opposed elongate second seal wall joined to the base, the first and second seal walls extending away from the base in a diverging relationship; 
     (3) an elongate first arcuate buttress joined to an end of the first seal wall distal from the base, and an elongate second arcuate buttress joined to an end of the second seal wall distal from the base; 
     (4) an elongate planar first seal surface joined to an end of the first arcuate buttress distal from the first seal wall, and an elongate planar second seal surface joined to an end of the second arcuate buttress distal from the second seal wall, the first seal surface and the second seal surface each extending away at an angle from the first arcuate buttress and the second arcuate buttress respectively in a converging relationship; and 
     (5) an elongate seal closure having a first closure end joined to an end of the first seal surface distal from the first arcuate buttress and a second closure end joined to an end of the second seal surface distal from the second arcuate buttress; and 
     wherein the base, the first and second seal walls, the first and second arcuate buttresses, the first and second seal surfaces and the seal closure define the hollow seal chamber. 
     Clause 118. The folded building structure of clause 117, wherein the base of the first compression seal has an arched section arched inwardly toward the seal chamber. 
     Clause 119. The folded building structure of either of clause 117 or 118, wherein the base of the first compression seal has a first end and an opposed second end, and the base further comprises an elongate first winglet extending from the first end of the base and an elongate second winglet extending from the second end of the base. 
     Clause 120. The folded building structure of clause 119, wherein the first seal slot has an elongate planar floor section with a first end and an opposed second end, a first lateral groove extends away from the first end of the first seal slot, a second lateral groove extends away from the second end of the first seal slot, the first winglet is positioned in the first lateral groove and the second winglet is positioned in the second lateral groove. 
     Clause 121. The folded building structure of clause 120, wherein the first seal slot is further defined by an elongate first slot wall extending away from the floor section from a first location, an elongate second slot wall extending away from the floor section from an opposed second location, with the first and second slot walls extending away from the floor section in a diverging relationship. 
     Clause 122. The folded building structure of any one of clause 105, 106, 107, 109, 112, 113, 114 or 116, wherein the first and second shear seals each comprises: 
     (1) an elongate base; 
     (2) an elongate first seal wall joined to the base, and an opposed elongate second seal wall joined to the base, the first and second seal walls extending away from the base in a diverging relationship; 
     (3) an elongate seal support having an arcuate region joined to an end of the first seal wall distal from the base; 
     (4) an elongate planar seal closure joined to an end of the second seal wall distal from the base; 
     (5) the cantilevered seal surface being joined to the seal closure distal from the second seal wall at a shear seal junction, the cantilevered seal surface oriented at an upward angle relative to the base; and 
     (6) an end of the seal support distal from the first seal wall joined either to the shear seal junction, or to the cantilevered seal surface proximate to the shear seal junction, thereby defining the hollow seal chamber. 
     Clause 123. The folded building structure of clause 122, wherein the base of each of the first and second shear seals is planar. 
     Clause 124. The folded building structure of either of clause 122 or 123, wherein the base of each of the first and second shear seals has a first end and an opposed second end, and there is an elongate first winglet extending from the first end of the base and an elongate second winglet extending from the second end of the base. 
     Clause 125. The folded building structure of clause 124, wherein each of the first seal slot and the second seal slot has an elongate planar floor section with a first end and an opposed second end, a first lateral groove extends away from the first end of the first seal slot, a second lateral groove extends away from the second end of the first seal slot, the first winglet is positioned in the first lateral groove and the second winglet is positioned in the second lateral groove. 
     Clause 126. The folded building structure of clause 125, wherein each of the first seal slot and the second seal slot is further defined by an elongate first slot wall extending away from the floor section from a first location, an elongate second slot wall extending away from the floor section from an opposed second location, with the first and second slot walls extending away from the floor section in a diverging relationship. 
     Clause 127. The folded building structure of any one of clauses 122-126, wherein the cantilevered seal surface of either or both of the first and second shear seals is planar. 
     Clause 128. The folded building structure of any one of clauses 105-127, wherein either or both of the first and second seal plates is formed of foamed polyvinyl chloride.