Patent Publication Number: US-2023135439-A1

Title: Delivery device for rooftop equipment and systems and method of installation

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This patent application is based on and claims priority to U.S. patent application Ser. No. 17/453,554 which is entitled DELIVERY DEVICE FOR ROOFTOP EQUIPMENT AND SYSTEMS AND METHOD OF INSTALLATION, filed Nov. 4, 2021, the entire disclosure of which is incorporated herein by reference 
    
    
     TECHNICAL FIELD OF THE INVENTION 
     The present invention relates generally to devices such as junction boxes for delivering power to electrical equipment and systems. More particularly, but not by way of limitation, the present invention relates to devices for delivering power to electrical equipment and systems installed on a rooftop. Methods of using devices for delivering rooftop power and installing devices for delivering rooftop power also are provided. 
     SUMMARY OF THE INVENTION 
     The present invention is directed to a rooftop delivery device for supplying electric power, plumbing and lines to equipment and systems positioned on a roof. The rooftop delivery device comprises a mounting assembly, comprising a flashing positioned above the roof; a cleat positioned below the roof; a vice assembly for clamping the flashing and the cleat against the roof. 
     The present invention further directed to a method of installing a rooftop delivery device on a roof structure having an exterior surface and an interior surface for the delivery of electric power, plumbing and lines to equipment and systems on the roof. The method comprises the steps of providing a flashing on the exterior surface of the roof structure; providing a cleat beneath the interior surface of the roof structure; moving the cleat toward the interior surface of the roof structure and clamping the flashing against the exterior surface of the roof and the cleat against the interior surface of the roof. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is a perspective view of an embodiment of an illustrative device for delivering rooftop power, the device constructed in accordance with the present invention. 
         FIG.  2    is a front plan view of the device of  FIG.  1   , but with the addition of gussets. 
         FIG.  3    is a rear perspective view of the device of  FIG.  1   . 
         FIG.  4    illustrates an interior view of the components inside the enclosure of the rooftop power delivery device of  FIG.  1   . 
         FIG.  5    is a cross-section view taken along line  5 - 5  of  FIG.  2   . 
         FIG.  6    shows a frontal view of an illustrative mounting assembly for the rooftop power delivery device of  FIG.  1   . 
         FIG.  7    shows a top plan view of a flashing component comprising the mounting assembly of  FIG.  6   . 
         FIG.  8    shows a top plan view of a cleat component comprising the mounting assembly of  FIG.  6   . 
         FIG.  9 A  illustrates a side view of an illustrative L-bracket used in the vice assembly of  FIG.  6   . 
         FIG.  9 B  illustrates a front view of the vertical component of the L-bracket shown in  FIG.  6   . 
         FIG.  9 C  illustrates a front view of the horizontal component of the L-bracket shown in  FIG.  6   . 
         FIG.  10    shows a side, front or rear view of a stand comprising the rooftop power delivery device of  FIG.  1   . 
         FIG.  11    illustrates the L-brackets positioned on the stand with the horizontal portion of the L-bracket positioned proximal the cleat. 
         FIG.  12    shows a bottom view of the mounting assembly of  FIG.  6   . 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Building designs frequently evolve with changes in technology and usage requirements for commercial, industrial and residential structures. Rooftops are now more frequently employed by designers, architects and engineers for the purpose of mooring electrical equipment and systems to advance the interests of economy and design. 
     Building, plumbing and electrical codes consequently are updated to keep pace with the advancements in technology and evolutions in building design, including the provision of service receptacles and equipment disconnects for safety and convenience. For example, the National Electrical Code (NEC) requires a 125-volt, single-phase, 15- or 20-ampere-rated service receptacle located within 25 feet of heating, air-conditioning, or refrigeration equipment, indoor service equipment, and equipment that requires dedicated space from NEC Section 110.26(E), which includes switchboards, switchgear, panelboards, motor control centers. Ground Fault Circuit Interrupter (GFCI) protection is required for all receptacles specified in Section 210.63 regardless of whether it is outside, including on a rooftop, inside, in an attic or in an electrical equipment room that is considered a dry location. Some codes also require minimum clearances for rooftop electrical terminations and a minimum number of power receptacles to match the type and number of equipment or electrical systems installed on a roof. 
     In order to supply electrical power to rooftop equipment and systems, conventional roof mounted enclosures for electrical power connections penetrate the roof decking and impair the integrity of the roof, increasing the risk of leaks and necessitating repairs. Roof penetrations also cause construction delays and increase costs. Several conventional raintight enclosures or junction boxes are available. To qualify for use on a rooftop, the junction box must meet National Electrical Manufacturer Association (NEMA) 3 ratings, meaning that the enclosure must be constructed for either indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts, to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects, such as falling dirt, to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water, such as rain, sleet and snow, and that will be undamaged by the external formation of ice on the enclosure. 
     In addition, the junction box or enclosure must be mounted in the correct orientation to minimize risk of leaks and damage. Many conventional enclosures cannot be installed in a downward direction. Conventional devices use gasket sealed plastic boxes placed under the electrical array to provide protection. Lengths of PV wire with MC4 connectors mate with modules, and then run into a junction box to transition to Thermoplastic High Heat-resistant Nylon coated (THHN) wire. Wire nut splices can be used, although junction blocks or water-resistant splices are employed with conventional rooftop devices. Conventional devices require multiple penetrations through the roof to add stability to these devices. 
     NEC codes require that the wires be labeled on all exposed junction boxes and conduit. If the inverter is a grounded type, grounded wire must be white and ungrounded wire black. Although regulations dictate the color codes for electrical wires, particularly for grounded wires, there is disparity in the use of correctly coded wires. Some electricians use black as the negative wire and red as the positive wire. Red wire fades to white if exposed to sunlight, so some electricians tape the ends of a black wire with red tape. Additionally, lead wires should not use the electrical convention of black and white wires. Code permits gray to substitute for grounded conductors and orange for the ungrounded conductors. 
     The subject invention addresses these deficiencies and more and is directed to a rooftop power drop device that delivers electric power from the inside of a building to equipment and systems installed on the outside of the building on a rooftop. The device comprises a white, powder coated enclosure, disconnects to provide protection for the circuitry and equipment to which power is delivered, a communications module, a mounting assembly and a vice assembly. The mounting assembly comprises a cleat that allows application of pressure from the outside of the rooftop and from the inside of the roof, providing a more secure and dryer fit. Flashing is welded to the stand that is installed on the rooftop. The stand of the invention goes through the roof through hole sized for the application, depending on the equipment being installed, with a matching cleat installed on the stand from the inside. The subject invention also has applicability for any piping, tubes, lines and other conduits that must pass from the interior of a structure through the roof, such as plumbing lines, freon lines, condensation lines, and the like. 
     For installation, the device is placed through a perforation created in the roof. From the inside of the roof, the cleat slides onto the bottom of the stand. Traveler screws are threaded through brackets that are inserted in key slots on the stand for ease of installation. The traveler screws are screwed down, which moves the cleat up toward the inside of the roof. When the cleat is pressed firmly against the inside of the roof, the traveler screws apply a downward pressure on the stand, which pulls the flashing firmly against the top of the roof for a sturdier and drier fit. This enables the cleat to grab the roof from the inside and from outside of the building, which gives the device a more stable fit and minimize leaks. These and other advantages of the invention will be described in more detail. 
     Turning now to the drawings in general, and to  FIGS.  1 ,  2  and  3    in particular, there is shown therein an illustrative rooftop power delivery device  10  constructed in accordance with the present invention. The rooftop power delivery device  10  comprises an enclosure  12  for housing electrical components, which are yet to be described. The device  10  further comprises a mounting assembly  14 , and a vice assembly  18 . The mounting assembly includes at least one stand  20 , at least one cleat  22 , and at least one flashing  28 . It will be appreciated that the stand  20  may be part of the mounting assembly  14  or may be a component separate from the mounting assembly. The vice assembly  18  comprises one or more brackets  24  and securing means, such as traveler screws  26 , for clamping the flashing  28  and the cleat  22  against the roof. 
     The enclosure  12  houses electrical components and protects them from damage and elements. The enclosure  12  may be comprised of a variety of materials including metals, such as carbon steel, galvanized steel, stainless steel, aluminum, chrome, steel chrome-plated, steel with nickel/silicon carbide composite coating, brass, brass-chrome plated, brass with nickel/silicon carbide composite, stainless steel, stainless chrome-plated, stainless with nickel/silicon carbide composite coating, carbonitrided steel, nickel carbide plated steel, tempered steel, and non-metals, such as polycarbonate or polyvinylchloride. Nonmetals, such as polycarbonate or polyvinylchloride, may be suitable materials for the enclosure  12  in some applications, such as water treatment and marine or marina applications. The enclosure  12  preferably meets NEMA 3, 3R, 3S, 4, 4X, 6, 6P, 12 or 13 standards. In one embodiment of the invention, the enclosure  12  meets or exceeds NEMA 4 ratings. 
     Turning now to  FIG.  4   , but with continuing reference to  FIGS.  1 ,  2  and  3   , the enclosure  12  comprises a door  30  and latch  32  to enable access to the interior electrical components, yet to be described. Many door and window configurations and latch/lock options are available for use with the enclosure  12  of the rooftop power delivery device  10 . The door  30  may comprise an outdoor weatherproof cover, including a weatherproof seal  36 , and is operatively connected via one or more hinges  38 . 
     The enclosure  12  may be any color, although in one embodiment of the invention, the enclosure is powder coated in the color white to reduce corrosion and minimize effects of heat buildup during high temperature exposure, particularly on a rooftop where heat levels may be excessive. Data gathered from significant testing and monitoring of the effects of direct sunlight on heat buildup inside the enclosure  12  shows that the color white yields significant reduction in resulting temperatures and thermal energy inside the enclosure. Because GFCI receptacles have a suggested operating temperature of approximately  104  degrees Fahrenheit, it is important to maintain recommended operating temperatures within the enclosure  12 . 
     The shape of the enclosure is variable, including cylindrical, spherical, cubed, cuboid, prismatic or pyramidal. In one embodiment of the invention, the shape of enclosure  12  is a cuboid or rectangular prism having one dimension that is longer than the other two dimensions. The dimensions of the enclosure  12  should be sized for the particular application in which the rooftop power delivery device  10  is to be deployed. For example, the enclosure may range in size from about 1.5 inches (42 mm) wide and about 1.5 inches (42 mm) deep and about 2.95 inches (75 mm) high to about 36 inches (91.44 cm) wide and about 36 inches (91.44 cm) deep and about 48 inches (121.92 cm) high. References herein to measurements and diameters are to outside measurements and diameters, unless specifically stated to reference an inner diameter or measurement. Methods known in the art for sizing junction boxed may be used to size the enclosure  12  of the rooftop power delivery device  10 . 
     It will be appreciated that the shape and size of the enclosure  12  may accommodated to the particular application. For example, the size and shape of the enclosure for HVAC and plumbing applications generally may request a larger enclosure than for electrical applications. It will also be appreciated that the rooftop power deliver device may be employed without an enclosure  12  via the use of a gasket, not shown, which directs communication cables, wires, cords and bus bars directly from the stand  20  for connection with rooftop equipment and systems. 
     The enclosure  12  is in communication with and is supported by the mounting assembly  14 , including one or more stands  20 , one or more cleats  22 , one or more brackets  24 , securing means such as traveler screws  26 , and one or more flashings  28 . The stand  20  extends through and penetrates the roof in a manner yet to be described and supports the enclosure  12  on the rooftop. It will be appreciated that the stand  20  may be part of the mounting assembly  14  or may be a separate component independent from the mounting assembly. 
     The stand  20  may be any shape, including cylindrical, spherical, cubed, cuboid, prismatic or pyramidal. The shape of the stand  20  may match the shape of the enclosure  12 , and while matching the shape of the stand  20  and the enclosure  12  is unnecessary, this may be advantageous for certain applications and space requirements or for conditions at the site. 
     The stand  20  serves a variety of functions. The stand  20  supports the enclosure  12  directly off the roof, thus mitigating the deleterious effects of heat, humidity, corrosion, water intrusion and other elements and physical threats. The stand  20  also forms an enclosed conduit, or raceway, for the transition of communication cables, wires, cords and bus bars  40  from inside a building or structure to the enclosure  12  of the rooftop power delivery device  10 . The cables, wires, cords and bus bars  40  include, without limitation, ethernet cable, coaxial cable, and five conductor thermostat wire. 
     The stand  20  may be comprised of the same material as the enclosure  12 , including metals, such as, carbon steel, galvanized steel, stainless steel, aluminum, chrome, steel chrome-plated, steel with nickel/silicon carbide composite coating, brass, brass-chrome plated, brass with nickel/silicon carbide composite, stainless steel, stainless chrome-plated, stainless with nickel/silicon carbide composite coating, carbonitrided steel, nickel carbide plated steel, tempered steel, and non-metals, such as polycarbonate or polyvinylchloride. The stand also may be comprised of rigid metal conduit, intermediate metal conduit, electro metallic tubing, electric nonmetallic tubing, nonmetallic underground conduit, flexible metallic tubing, or greenfield spiral metal flexible conduit. In one embodiment of the invention, the stand  20  is comprised of carbon steel. 
     Turning now to  FIG.  5   , but with continuing reference to  FIGS.  1 ,  2 ,  3  and  4   , the enclosure  12  forms an aperture  42  on a bottom side  44  of the enclosure for receiving the stand  20 . The stand  20  has an upper end  46  and a lower end  48 . The upper end  46  of the stand  20  is connected to the enclosure  12  at or through the aperture  42  in a variety of ways suitable for sealing the communication therebetween and protecting the cables, wires, cords and bus bars  40  and the contents of the enclosure  12  from heat, humidity, corrosion, water intrusion and other elements and physical threats. 
     It will be appreciated that the rooftop power delivery device  10  may comprise more than one stand  20 , providing multiple throughways for the passage of the communication cables, wires cords and bus bars  40 . In one embodiment of the invention, only one stand  20  is employed and contains all of the necessary communications cables, wires, cords and bus bars  40  enclosed within one stand to reduce the need for multiple penetrations through the roof, while still providing stability and strength to the device  10 . 
     In one embodiment of the invention, the enclosure  12  and the stand  20  are comprised of carbon steel and are connected with a solid weld around the aperture  42  to create a water tight seal between the stand  12  and the enclosure  20 . The welds preferably meet American Welding Society (AWS) Section D (Structural Welding Code—Steel) 1.1 and 1.3. The stand  20  also may be secured to the enclosure  12  via rivets, adhesive, such as epoxies, polyurethane and cyanoacrylate, studs, brazing, soldering, spot welding or nuts and bolts and combinations of the foregoing. 
     The cables, wires, cords and bus bars  40  deliver electric power to components within the enclosure  12 , which now will be described. Protectively housed with the enclosure  12  are one or more GFCI receptacles and/or GFCI circuit breakers  52 , one or more ethernet connections  54 , one or more thermostats  56 , a control panel, and a grounding wire  57 . The communications cables  40  thus include ethernet cables, coaxial cables, and thermostat cables for ease of building management systems to communicate with rooftop equipment and dish communication. Accordingly, it will now be understood that the size or diameter of the stand  20  is sufficient to house the plurality of communications cables, wires, cords and bus bars  40 . The has a diameter or width, depending upon the shape of the stand  20 , which is variable depending upon the application and may range from about 0.5 inches (1.27 cm) to about 35 inches (88.9 cm). More particularly, the diameter or width of the stand may range from about 2 inches (5.08 cm) to about 6 inches (10.16 cm). The GFCI receptacle and/or circuit breaker  52  may have a switch  61  for cutting power to the circuit. 
     The rooftop power delivery device  10  further may comprise a GFCI circuit breaker with a standard weather protected receptacle or a weather protected GFCI receptacle. THE GFCI receptacle or circuit breaker  52  protects the entire circuit, including the cables, wires, cords and bus bars  40  and all equipment and systems connected to the circuit. A combination GFCI receptacle and GFCI circuit breaker  52  allows installers to obtain electrical power from the closest available circuit rather than from the closest source, which reduces installation costs in many cases. In cases where an Arc Fault Circuit Breaker (AFCI) protection is also called for, there are dual function GFCI/AFCI circuit breakers that can be employed in the invention. 
     Additionally, some codes require a minimum number of receptacles, disconnects or receptacles with disconnects, depending on the types of equipment and electrical systems installed on a roof. Therefore, rather than using fused switches and non-fused switches as a means of disconnect, a Molded Case Circuit Breaker (MCCB) and/or a Motor Starter Protector (MCP)  53 , which provide faster and more precise protection to equipment and the circuits that supply them. 
     The thermostat  56  may be connected to the IOT. As used herein, “TOT” means “Internet of Things” and refers to a network of physical objects that feature an IP address for internet connectivity and the communication that occurs between these objects and other Internet-enabled devices and systems. In the present invention, the thermostat may comprise one or more Wi-Fi or hard-wired thermostats allowing remote monitoring and control of electrical equipment and systems and providing alerts via a computer, smartphone, SMS, tablet or other Internet enabled device. 
     Turning now to  FIG.  6   , the mounting assembly  14  will be described. The mounting assembly  14  applies pressure from both the top and bottom surfaces of the roofing structure, thus minimizing the number of penetrations and the risk of leaks while providing a secure fit for the rooftop power delivery device  10 . The mounting assembly  14  includes at least one stand  20 , at least one cleat  22 , a mounting assembly  14 , and a vice assembly  18 . The mounting assembly includes at least one stand  20 , at least one cleat  22 , and at least one flashing  28 . As mentioned previously, the stand  20  may be part of the mounting assembly  14  or may be a component separate from the mounting assembly. The vice assembly  18  comprises one or more brackets  24  and securing means, such as traveler screws  26 , for clamping the flashing  28  and the cleat  22  against the roof. The mounting assembly  14  and vice assembly  18  cooperate to minimize leaks due to penetrations through the roof while supplying sufficient pressure of at least 3 lb.-ft (4.07 N-m) from both the outer top surface and the interior bottom surface of the roof structure. 
     The components of the mounting assembly  14  and the vice assembly  18  may be comprised of metals, such as carbon steel, galvanized steel, stainless steel, aluminum, chrome, steel chrome-plated, steel with nickel/silicon carbide composite coating, brass, brass-chrome plated, brass with nickel/silicon carbide composite, stainless steel, stainless chrome-plated, stainless with nickel/silicon carbide composite coating, carbonitrided steel, nickel carbide plated steel, tempered steel, and non-metals, such as polycarbonate or polyvinylchloride. In one embodiment of the invention, the components of the mounting assembly  14  and the vice assembly  18  are comprised of carbon steel. The dimensions of the mounting assembly  14  are variable, depending in part on the size of the enclosure  12  and the application for which the rooftop power deliver system  10  is employed. 
     The flashing  28  comprises a central aperture  60  that is sized and shaped to receive the stand  20 , as illustrated in  FIG.  7   . The flashing  28  is secured to the stand  20  with a solid weld around the aperture  60  to create a water tight seal between the stand  12  and the flashing  28 . The weld preferably meets American Welding Society (AWS) Section D (Structural Welding Code—Steel) 1.1 and 1.3. The flashing  28  also may be secured to the stand  20  via rivets, adhesive, such as epoxies, polyurethane and cyanoacrylate, studs, brazing, soldering, spot welding or nuts and bolts and combinations of the foregoing. 
     The flashing  28  may be any shape, but is substantially planar, and has a dimension that is variable depending upon the application and the size of the enclosure  12  and the stand  20 . The length and width of the flashing  28  may range from about 4 inches (10.16 cm) to about 50 inches (127 cm), and more particularly from about 10 inches (25.4 cm) to about 20 inches (50.8) cm. In one embodiment of the invention, the flashing  28  forms a generally planar square, optionally with rounded corners, and is about 15.75 inches (40 cm) in both length and width. Being generally planar, the width of the flashing  28  is no more than about 1 inch (2.54 cm) or less in thickness or depth. 
     The rooftop power delivery device  10  is positioned with the flashing  28  on top of the roof on which the rooftop power delivery device  10  is to be installed. The stand  20  extends through a perforation created in the roof that is sized and shaped to receive the stand. To that end, the length of the stand  20  is dependent upon the total depth of the materials comprising the roof structure and is sufficient to enable roof penetration while supporting the enclosure  12  off the surface of the roof. The length of the stand  20  may vary from about  12  inches (30.48 cm) to about 100 inches (254 cm), and, more particularly, from about 24 inches (60.1cm) to about 60 inches (152.4) inches, when accommodating an enclosure. The stand  20  has a diameter which ranges from about 2 inches (5.08 cm) to about 6 inches (15.24 cm). 
     The rooftop power delivery device  10  may further comprise one or more gussets  25  positioned above the flashing  28 . As illustrated in  FIG.  2   , the one or more gussets  25  are generally triangular in shape and extend from the stand  20  above to the flashing  28  toward each corner of the flashing. To that end, the number of gussets  25  number four when the flashing  28  is square or rectangular in shape. The gussets  25  may be made from the same material as the stand  20  and/or the flashing  28  and welded thereto. The rooftop power delivery device  10  is designed to withstand wind forces up to 150 miles per hour, whether from tornado, hurricane or straight line winds, and the gussets  25  provide additional strength to the device further increasing its strength and rigidity. 
     The cleat  22  of the mounting assembly  14  forms a central aperture  62  through which the stand  20  is positioned, as shown in  FIG.  8   . The cleat  22  is positioned from the underside or interior of the roof, beneath the flashing  28  and at a sufficient distance from the flashing to accommodate the thickness of the roof. The length and width of the cleat  22  may range from about 4 inches (10.16 cm) to about 50 inches (127 cm), and more particularly from about 10 inches (25.4 cm) to about 20 inches (50.8) cm. In one embodiment of the invention, the cleat  22  forms a generally planar square, optionally with rounded corners, and is about 15.75 inches (40 cm) in both length and width. Being generally planar, the cleat  22  ranges from about 0.125 inches (0.3175 cm) to about 1 inch (2.54 cm) in thickness or depth. 
     The size and shape of both the cleat  22  and the flashing  28  may be identical, or they may differ. It is generally preferred that the size and shape of the cleat  22  and the flashing  28  be identical or similar to facilitate uniform application of pressure and the uniform distribution of force to the roof structure. 
     A vice assembly  18  clamps the flashing  28  and the cleat  22  against the roof. In some embodiments of the invention, the vice assembly may be considered a component of the mounting assembly  14 . In one embodiment of the invention, the vice assembly  18  comprises brackets  24  that secure the cleat  22  to the stand  20 . 
     The brackets  24  may comprise L-brackets, having a vertical portion  50  and a horizontal portion  52 , as shown in  FIGS.  9 A,  9 B and  9 C , each of which has a length. The length of the vertical portion  50  and the length of the horizontal portion  52  of the L-bracket  24  may be substantially equal, or the length of the horizontal portion  52  may be greater than the length of the vertical portion. The length of the vertical portion of  50  preferably is not greater than the length of the horizontal portion  52 , for a purpose yet to be described. The cleat  22  has a diameter and the length of the horizontal portion  52  is substantially equal to one-half of the diameter of the cleat  22  less the diameter of the stand  20 . The horizontal portion  52  of the L-bracket  24  generally extends from the stand to the outer edge of the cleat  22 . In one embodiment of the invention, the vertical portion  50  and the horizontal portion  52  of the L-bracket  24  are approximately equal and are about 5 inches (12.7 cm) in length. 
     The L-brackets  24  also have a width and a thickness which may vary with the particular application. The thickness of the L-brackets  24  ranges from about 0.125 inches (0.3175) to about 0.5 inches (1.27) and a width which ranges from about 1 inch (2.54 cm) to about 3 inches (7.62 cm). Increasing the width and/or thickness of the L-bracket  24  increases the strength of the vice assembly  18 , without increasing the length of the horizontal portion  52  of the L-bracket. 
     The L-brackets  24  are secured to the stand  20  with bolts (not shown) via a plurality of apertures, such as key slots  58 , shown in  FIG.  10   , formed in the stand that mate with apertures  59  formed in the vertical portion  50  of the L-bracket  24 , as shown in  FIG.  9 B . It will be appreciated that the L-brackets  24  and the key slots  58  may be positioned on the stand  20  so that the horizontal portion  52  of the L-bracket is positioned distally, or away from, the cleat  22  near the lower end  48  of the stand  20 , as shown in  FIG.  6   . Alternatively, the L-brackets  24  and the key slots  58  may be positioned on the stand  20  so that the horizontal portion  52  is positioned proximally the cleat  22 , as shown in  FIG.  11   . 
     The cleat  24  also forms lateral apertures  64  therethrough, shown in  FIG.  8   , which mate with apertures  56  formed in the horizontal portion  52  of each of the plurality of L-brackets  24  and through which traveling screws  26  are threaded to secure the L-brackets  24  to the cleat  22 , as shown in  FIG.  12   . As the travelling screws  26  are tightened, the cleat  24  moves upward toward the inside surface of the roof structure on which the device  10  is to be installed. When the cleat  24  is pressed firmly against the inside of the roof, the travelling screws  26  will apply a downward pressure on the stand  20 , which pulls the flashing  28  firmly against the top of the roof for a sturdier and drier fit. This allows the device  10  to grab the roof from the inside and outside of the building, providing a more stable fit and minimizing leaks. It now will be appreciated that an L-bracket  24  with a horizontal portion  52  having a length that is greater than or equal to the length of the vertical portion  50  enhances the power of the travelling screws  26  to apply a downward pressure on the  20  and pulls the flashing  28  against the top of the roof. 
     The rooftop power delivery device  10  preferably, although not necessarily, meets all NEC and Underwriter&#39;s Laboratories requirements, including UL508A, and all welds comply with AWS Section D (Structural Welding Code—Steel) 1.1 &amp; 1. 
     The method of use and installation of the present invention now will be explained. The foregoing discussion of the invention is incorporated herein. A perforation is formed in a roof through which the stand  20  of the rooftop power delivery device  10  is dropped down the hole. The flashing  28 , which remains above the roof on the exterior surface of the roof. The enclosure  12  is positioned directly off the roof, thus mitigating the deleterious effects of heat, humidity, corrosion, water intrusion and other elements and physical threats. The enclosure  12 , stand  20  and flashing  28  are pre-assembled with the stand fitted through the central aperture  60  of the flashing, and inserted into the perforation in the roof as a unit. 
     From the underside, interior surface of the roof, the cleat  22  slides onto the stand  20  through the central aperture  62  at the bottom end  48  of the stand. The L-brackets  24  are inserted in key slots  58  on the stand  20  for ease of installation. The vertical portion  50  of the L-brackets  24  secure the cleat  22  to the stand  20  via bolts through apertures  59  in correspondence with key slots  58  in the stand. 
     The horizontal portion  52  of the L-bracket  24  abuts an underside of the cleat  22 . Lateral apertures  64  in the cleat  22  mate with apertures  56  in the horizontal portion  52  of the L-bracket  24  via travelling screws  26  threaded therethrough. When the travelling screws  26  tightened, the cleat  22  is moved upward toward the inside of the roof. As the cleat  22  is pressed firmly against the inside of the roof, the travelling screws  26  apply a downward pressure on the stand  20 , which pulls the flashing  28  firmly against the top of the roof. This allows the rooftop power delivery device  10  to grab the roof from both the inside and outside of the roof of the building, providing a superior, stable fit and minimizing leaks. 
     The stand  20  also forms an enclosed conduit, or raceway, for the transition of Communication cables, wires, cords and bus bars  40  from inside a building or structure to the enclosure  12  of the rooftop power delivery device  10 . Electric power cords, ethernet cables, coaxial cables, conductor thermostat wires, and other communication cables, wires, cords and bus bars are threaded or fished through the stand  20  and wire into communication with their relative components housed in the enclosure  12 . 
     It now will be appreciated that the subject invention comprises a rooftop power delivery device that supplies electric power from the inside of a building to equipment and systems installed on the outside of the building on a rooftop. The device comprises a white, powder coated enclosure, disconnects to provide protection for the circuitry and equipment to which power is delivered, a communications module, a mounting assembly and a vice assembly. The mounting assembly comprises a cleat that allows application of pressure from the outside of the rooftop and from the inside of the roof, providing a more secure and dryer fit. Flashing is welded to the stand that is installed on the rooftop. The stand extends through the roof through a perforation sized for the application, depending on the equipment being installed, with a matching cleat installed on the stand from the inside. 
     The invention has been described above both generically and with regard to specific embodiments. Although the invention has been set forth in what has been believed to be preferred embodiments, a wide variety of alternatives known to those of skill in the art can be selected with a generic disclosure. Changes may be made in the combination and arrangement of the various parts, elements, steps and procedures described herein without departing from the spirit and scope of the invention as defined in the following claims.