A roof and/or wall covering construction, as well as a panel for such a construction

Abstract: The invention relates to a roof and/or wall covering construction which is provided with panels (1) which are made of an insulating material (2), which is covered on opposite surfaces of the panels with a vapour impermeable material (3). Adjacent panels (1) are on adjacent boundary edges provided with grooves (5) and with noses (4) respectively, which project into said grooves (5). The construction is on the outer side provided with lining plates placed on the panels. Vapour impermeable sealing strips (7) are provided on either side of the noses (4) between adjacent panels (1), whilst strips (9) of a water and vapour impermeable material, which overlap joints between adjacent panels, are affixed to the panels (1) on the sides facing the lining plates.

Description: The invention relates to a roof and/or wall covering construction which is provided with panels which are made of an insulating material, which is covered on opposite surfaces of the panels with a vapour impermeable material, and whereby adjacent panels are on adjacent boundary edges provided with grooves and with noses respectively which project into said grooves, whilst the construction is on the outer side provided with lining plates placed on said panels. US patent US-A-3 079 730 discloses such a roof deck. With known covering constructions of this type it has become apparent in practice that hot air can escape from the room which is covered by means of the roof and/or wall covering construction via slits present between the grooves and the noses projecting into said grooves, which air may come into contact with the lining plates, which are usually made of a profiled, for example metal, sheet material. This may lead to condensation on the sides of the lining plates facing the panels, and the moisture thus formed may drip via said slits into the room covered by the roof and/or wall covering construction, which is generally not acceptable. Condensation may also be caused by air flows between lining plates and panels, for example from a gutter provided along a roof edge in the direction of the ridge. According to the invention vapour impermeable sealing strips are provided on both sides of the noses between adjacent panels, whilst strips of a water and vapour impermeable material, which overlap joints between adjacent panels, are affixed to the panels on the sides facing the lining plates. The strips of a water and vapour impermeable material, which overlap the joints between adjacent panels as well as the sealing strip situates there below, prevent the flow of air from the room covered by the covering construction to the lining plates as well as the leakage of moisture from the space located between the panels and the lining plates via the joints between the panels. Furthermore the sealing strips positioned on the sides of the noses facing away from the lining plates prevent air from entering the interior of the panels from the room, which might lead to condensation on the sheets of a vapour impermeable material covering the insulating material. According to the invention a panel suitable for being used in the above-described covering construction is obtained when the panel is on one longitudinal edge provided with a projecting nose and on an opposite longitudinal edge with a groove having a cross-section which corresponds with the cross-section of said nose, whilst strips of a vapour impermeable material are affixed to the panel on either side of said nose. Panels of this type can be produced in a simple manner in a factory and then be transported to the building site, where they can be joined in a simple and quick manner upon assembly of the covering construction. The invention will be explained in more detail with reference to the accompanying Figures. Figure 1 is a diagrammatic, partly sectional and partly perspective view of a covering construction according to the invention. Figure 2 is a larger-scale view of abutting parts of two panels lying adjacent to each other. As is shown in Figure 1, a roof and/or wall covering construction according to the invention comprises a plurality of panels 1 lying side by side and/or in line with each other, said panels being supported by girders 2' or the like, which form part of the skeleton of the building. Each panel is built up of a plate 2 of an insulating material, preferably expanded polystyrene, which is covered on its upper side as well as on its underside with a foil 3 of an impermeable material, for example aluminium. Preferably the edges of such a foil layer 3 are slightly bent over the side edges of the sheet 2 thereby. As will furthermore be apparent from Figures 1 and 2, one side edge of a plate is provided with a projecting nose 4 extending along the edge of the panel in question and having a substantially trapezoidal section, whilst the panel is on the opposite edge provided with a groove 5, which has a cross-section which corresponds with the cross-section of the projecting nose 4. Generally each panel is provided with such a projecting nose along one longitudinal edge and one cross edge, and in a similar manner it is provided with a recessed groove 5 along an opposite longitudinal edge and an opposite cross edge respectively. On their sides facing away from the interior of the building the panels are covered with corrugated, generally metal lining plates 6. As is furthermore shown in Figure 2, vapour impermeable sealing strips 7 and 8 are provided above and under nose 4 respectively, between the adjacent boundary edges of two panels 1 positioned adjacent to each other. The sealing strip 7 present on the side of the respective nose 5 which faces the lining plates 6, is in particular made of a vapour and liquid impermeable material, but for the sake of simplicity it is preferred to make both sealing strips 7 and 8 of the same material, for example butyl rubber. Efficiently the sealing strips 7 and 8 are already affixed to a respective panel, on either side of the nose 4, at the factory where the panels are produced, so that the panels can be transported to the building site with the sealing strips 7 and 8 affixed thereto. During transport the (preferably self-adhesive) sides of the sealing strips 7 and 8, which are to be brought into contact with the outer parts of the other panel positioned on either side of groove 5, are preferably covered with a cover strip, which is removed before the panels are placed into abutting relationship at the building site, so that the sealing strips 7 and 8 can also be effectively affixed to the edge of the adjacent panel in which groove 5 is formed. As is indicated in Figure 2, the joints between adjacent panels are furthermore covered by means of water and vapour impermeable strips 9, for example strips made of an aluminium foil, which are glued to those sides of the adjacent panels 2 that face the lining plates 6. The strips 9 are preferably provided with an adhesive film for affixing the strips 9 to the panels. Prior to providing the strips 9 a cover layer may be present on said adhesive film. Preferably the strips 9 are already affixed to the respective panels at the factory where the panels are produced. Of course the adhesive film of the part of strip 9 extending beyond the respective panel will be covered with a cover foil during transport, which foil is removed when the panels are being assembled to form the covering construction. Strip 9 is preferably attached to that side of the panel in which groove 5 is formed. It will be apparent that by using the above-described roofing plates a roof and/or wall covering construction may be obtained wherein circulation of air, vapour and/or liquid through the joints between adjacent panels is prevented in an effective manner. The thickness of the plates 2 may vary between 40 and 300 mm. The thickness of the aluminium foils 3 may vary between 25 - 100 µ m.

Claims: A roof and/or wall covering construction which is provided with panels (1) which are made of an insulating material (2), which is covered on opposite surfaces of the panels with a vapour impermeable material (3), and whereby adjacent panels (1) are on adjacent boundary edges provided with grooves (5) and with noses (4) respectively which project into said grooves, whilst the construction is on the outer side provided with lining plates (6) placed on said panels, characterized in that vapour impermeable sealing strips (7, 8) are provided on both sides of the noses (4) between adjacent panels (1), whilst strips (9) of a water and vapour impermeable material, which overlap joints between adjacent panels (1), are affixed to the panels (1) on the sides facing the lining plates (6). A roof and/or wall covering construction according to claim 1, characterized in that said panel (1) is on one longitudinal edge provided with a projecting nose (4) and on an opposite longitudinal edge with a groove (5) having a cross-section which corresponds with the cross-section of said nose (4), whilst strips (9) of a vapour impermeable material are affixed to the panel (1) on both sides of said nose (4). A roof and/or wall covering construction according to claim 2, characterized in that said panel (1) is on one cross edge provided with a projecting nose (4) and on an opposite cross edge with a groove (5) having a cross-section which corresponds with the cross-section of said nose (4), whilst strips (9) of a vapour impermeable material are affixed to the panel (1) on both sides of said nose (4). A roof and/or wall covering construction according to any one of the preceding claims, characterized in that said sealing strips (7, 8) of a vapour impermeable material are made of butyl rubber. A roof and/or wall covering construction according to any one of the preceding claims, characterized in that said panels (1) are made of expanded polystyrene foam and are covered on either side with an aluminium foil (6). A roof and/or wall construction according to any one of the preceding claims, characterized in that the strips (9) to be provided over the joints are made of an aluminium foil (6). A roof and/or wall construction according to any one of the preceding claims, characterized in that a projecting nose (4) has a substantially trapezoidal cross-section. A roof and/or wall construction according to any one of the preceding claims, characterized in that said panel (1) is along one edge provided with a strip (9) adhered to said panel (1), said strip (9) extending beyond the panel (1) over part of its width. A roof and/or wall construction according claim 8, characterized in that the part of said strip (9) extending beyond the respective panel (1) is provided with an adhesive film, which is covered with a removable cover strip.

Inventors: MEUWISSEN EDMAN, MEUWISSEN, EDMAN
Applicants: ISOBOUW SYSTEMS BV, ISOBOUW SYSTEMS B.V.
Application year: 1996
Main classification: E04D13
IPC codes: E04D3, E04B7, E04D13