The disclosures and figures of U.S. patent application Ser. No. 17/752,957, filed May 25, 2022, and of U.S. Provisional Patent Application No. 63/192,684, filed May 25, 2021, are specifically incorporated by reference herein as if set forth in their entireties.
This disclosure relates generally to roofing systems and more specifically to roofing panels and systems for connecting roofing panels along a roof structure.
A need exists for a roofing system and method for assembling roofing panels such as large structural roofing panels on rafters and/or other supports. The roofing system should be simple to install, yet securely attach the roofing panels to the rafters and to adjacent roofing panels in an array to provide a waterproof roof assembly. The roofing system should allow for disassembly of one or more of the roofing panels (e.g., for replacement) while allowing the remaining roofing panels to remain in an assembled, interconnected configuration. It is to the provision of such a roofing system and related methods that the present disclosure is primarily directed.
Briefly described, a roofing system is formed using roofing panels (e.g., laminated structural roofing panels, oriented strand board, solid materials such as wood or metal panels, and/or other suitable laminated or substantially unitary constructions) that have an outer exposed side or exterior facing surface and an inner side or interior facing surface that can face the interior of a building structure when installed as part of a roof for the building structure. The roofing panels can be secured to rafters or other supports of the roof by connectors. In some embodiments, the connectors can include first and second connectors, which each can include a plate with at least one projection extending therefrom, the plates defining flanges on each side of the at least one projection and configured to seat on and at least partially extend along one of the rafters of the roof structure or along an exterior facing surface of one or more roofing panels.
In embodiments, the connectors can have a “T” shape or configuration with the projections thereof extending in a direction generally perpendicular to the flanges of their plates. In other embodiments, the connectors can have an “I” shape or configuration with each connector having a first or top plate defining a pair of flanges, a second or bottom plate defining a second pair of flanges, and a projection extending therebetween.
In embodiments, the connectors can be configured in pairs including a first or bottom connector and a second or top connector. Each first or bottom connector can be secured to an upper surface of a rafter of the roof (e.g., by fasteners, or other mechanical attachments, adhesive, and/or other features). Adjacent roofing panels can be secured to the flanges of the first connector (e.g., by fasteners, adhesive materials, and/or other engaging features) so that a projection of the first connector is at least partially received along a seam or joint defined between the two adjacent roofing panels. A second or top connector can be positioned opposite an associated one of the first or bottom connectors mounted along the rafter, with the flanges of the second connector extending along exterior facing surfaces of the adjacent roofing panels and with a projection extending downwardly; and with each pair of opposing flanges of the first and second connectors defining a recess in which a peripheral sides edge of a roofing panel can be received and captured. The projection of the second connector can be at least partially received along the seam or joint defined between the adjacent roofing panels, and the flanges of the second connector can be secured to the roofing panels by fasteners and/or an adhesive (e.g., the flanges of the second connector can be adhered or mechanically attached to the exterior facing surfaces of the two adjacent roofing panels by a sealant or similar adhesive). The first and second connectors also can be secured together by fasteners extending therebetween.
In some embodiments, the roofing panels can be configured to act as a structural component of the roofing system that can be easily handled and installed by individual installers. In embodiments, the roofing panels are formed with a lightweight core sandwiched between layers of other materials, including at least a first layer of material, which can comprise wood, such as plywood, metal or a polymer material, and at least a second layer of material, which can comprise wood, such as plywood, metal, or a polymer material. Additional layers of materials also can be applied thereover. For example, a third layer that can comprise an exterior layer (e.g., a waterproofing layer) can be applied, extending along the exterior facing surface of each of the roofing panels.
In some embodiments, the exterior layer of a roofing panel can include an overlapping portion that extends beyond an edge of the roofing panel and that overlaps an adjacent roofing panel (e.g., at least partially overlapping a headlap portion of a roofing panel installed immediately downslope). The overlapping portion further can at least partially cover the seam or joint formed between adjacent roofing panels, with the flanges of the top connector engaging the exterior layer to create a substantially waterproof seal therealong. In some embodiments, the overlapping portion can be adhered, welded, and/or otherwise secured to the exterior surface of the adjacent roofing panel.
Various aspects of roofing systems incorporating structural roofing panels and connectors and methods forming roofing systems incorporating structural roofing panels and connectors, are provided by the present disclosure. For example, and without limitation, in one aspect, a roofing system is provided, comprising a plurality of rafters; a plurality of roofing panels comprising at least a first roofing panel and a second roofing panel positioned on opposite sides of at least one rafter; a first connector secured to the at least one rafter, wherein each of the first roofing panel and the second roofing panel is releasably secured to the first connector; and a second connector positioned opposite the first connector, the second connector releasably secured to the first roofing panel and the second roofing panel; wherein the second connector is releasably coupled to the first connector with adjacent peripheral side portions of the first roofing panel and second roofing panel engaged and held between the first connector and the second connector so as to couple the first roofing panel and second roofing panel together along the at least one rafter.
In embodiments of the roofing system, the first connector comprises at least one flange and a projection extending from at least one flange; wherein the at least one flange of the first connector is secured to at least one rafter and is releasably secured to the first roofing panel and the second roofing panel. In some embodiments, the second connector comprises at least one flange and a projection extending from at least one flange; wherein at least one flange of the second connector is releasably secured to the first roofing panel and the second roofing panel.
In some embodiments, the projection of the first connector and the projection of the second connecter each are at least partially received along a seam defined between the first roofing panel and the second roofing panel.
In embodiments, the first and second connectors each comprise a pair of flanges projecting from opposite sides of the projections, and wherein the projection and the flanges of the bottom first connector define a T-shaped cross-section of the first connector, and wherein the projection and the flanges of the top second connector define a T-shaped cross-section of the second connector.
In embodiments, the roofing system further comprises fasteners configured to be extended through at least some of the flanges of the first and second connectors and through the first and second roofing panels to releasably secure the first and second connectors to the first and second roofing panels.
In embodiments of the roofing system, the projections of the first connector and the second connector each include a substantially triangular cross-section adjacent their respective flanges.
In some embodiments of the roofing system, the second connector is at least partially secured to an exterior surface of each of the first roofing panel and the second roofing panel with a sealant.
In embodiments of the roofing system, the plurality of roofing panels further comprises a third roofing panel positioned downslope from the first roofing panel, wherein at least the first roofing panel comprises an exterior layer having an overlap portion extending beyond an edge of the first roofing panel and at least partially overlapping the third roofing panel. In embodiments, the overlap portion of at least the first roofing panel is bonded to an exterior facing surface of the third roofing panel to at least partially form a seal over a seam formed between the first roofing panel and the third roofing panel.
In some embodiments of the roofing system, the roofing panels of the plurality of roofing panels comprise oriented strand board. In other embodiments, the roofing panels of the plurality of roofing panels comprise laminate panels.
In embodiments of the roofing system, each of the roofing panels of the plurality of roofing panels comprise a core, a first layer of material overlying the core, and a second layer of material underlying the core.
In embodiments, the core comprises a polyisocyanurate, polystyrene, PVC, polyethylene, polyamide, phenolic material, or a combination thereof; and the first and second layers each comprise a polymer material, metal, wood, or combination thereof.
In embodiments, the roofing system further comprises a third layer of material overlying the first layer of material, the third layer comprising a thermoplastic membrane, gripping layer, or combination thereof.
In another aspect, a roofing system is provided, comprising a plurality of rafters; a plurality of roofing panels, each of the roofing panels configured to span across a distances defined between one or more adjacent rafters of the plurality of rafters; a plurality of connectors each comprising a projection; at least one plate defining flanges positioned on each side of the projection; and wherein the at least one plate of one or more of the connectors is configured to be secured to one of the rafters of the plurality of rafters; wherein opposing flanges of the connectors are configured to define recesses on opposite sides of the projections and in which adjacent peripheral side portions of a first roofing panel and an adjacent roofing panel are received and are releasably secured together in an array of roofing panels mounted along the plurality of rafters.
In embodiments of the roofing system, at least some of the connectors comprise a plurality of first and second connectors, and wherein the projection and the flanges of the first connector define a T-shaped cross-section of the first connector, and wherein the projection and the flange of the second connector define a T-shaped cross-section of the second connector.
In some embodiments, at least some of the connectors comprise an I-shaped construction, with each connector including a top plate and a bottom plate with the projection of each connector extending between the top and bottom plate thereof.
In embodiments of the roofing system, each of the roofing panels comprises a core, a first layer of material overlying the core, and a second layer of material underlying the core.
In some embodiments, the core comprises a polyisocyanurate polystyrene, PVC, polyethylene, polyamide, phenolic material, or a combination thereof; and the first and second layers each comprise a polymer material, metal, wood, or combination thereof.
In embodiments of the roofing system, the connectors comprise first and second connectors, wherein the first connectors include flanges configured to mount along the rafters, and the second connectors include flanges configured to mount along an exterior facing surface of the roofing panels in an opposing arrangement with the first connectors, and further comprising a plurality of fasteners configured to be extended through each of the flanges of the first connectors and the second connectors and the roofing panels to releasably connect the roofing panels to the rafters.
Accordingly, embodiments of roofing panels and methods for forming a roof structure that are directed to the above discussed and other needs are disclosed. The foregoing and other advantages and aspects of the embodiments of the present disclosure will become apparent and more readily appreciated from the following detailed description and the claims, taken in conjunction with the accompanying drawings. Moreover, it is to be understood that both the foregoing summary of the disclosure and the following detailed description are exemplary and intended to provide further explanation without limiting the scope of the present disclosure.
The accompanying drawings, which are included to provide a further understanding of the embodiments of the present disclosure, are incorporated in and constitute a part of this specification, illustrate embodiments of this disclosure, and together with the detailed description, serve to explain the principles of the embodiments discussed herein. No attempt is made to show structural details of this disclosure in more detail than may be necessary for a fundamental understanding of the exemplary embodiments discussed herein and the various ways in which they may be practiced.
The present disclosure will be described generally before referring in additional detail to the various drawing figures attached hereto. In embodiments, a roofing system is provided wherein roofing panels are assembled to rafters and/or other supports to form a roof which can include commercial roof structures as well as residential and other sloped roof structures. The roofing system can include a plurality of roofing panels, a plurality of connectors that can be secured to respective rafters of the roof, and to pairs of adjacent roofing panels of the plurality of roofing panels. In embodiments, the connectors can include a first or bottom connector and a second or top connector. Each of the first connectors can be secured to a bottom or interior side of two adjacent roofing panels and each of the second connectors can be secured to a top or exterior side of two adjacent roofing panels. The first connectors and/or the second connectors can be releasably attached to the respective roofing panels so that one or more of the roofing panels can be removed from the assembled roof while the remainder of the roof remains in the assembled configuration.
In addition, while the connectors have been illustrated in some non-limiting embodiments as including a pair of opposing connectors, with one or both having a “T” shape or configuration, in other embodiments, the connectors can have a substantially unitary construction. For example, in embodiments, the connectors could be formed with an “I” shape or configuration with a first or bottom plate defining a first pair of flanges (e.g. bottom flanges configured to engage the bottom surfaces of a pair of adjacent panels), a second or top plate defining a second pair of flanges (e.g. top flanges configured to engage the top or exterior facing surfaces of a pair of adjacent panels), and with a projection or web extending between and connecting the first and second plates.
In some embodiments, the connectors 107, 111 can be formed of metal such as aluminum (e.g., oxidized aluminum with a powder coat), or can be formed from synthetic or composite materials, and/or any other suitable materials. The material of the connectors generally will include functional or performance characteristics such as being lightweight while still possessing high strength, rigidity, and Ultraviolet (UV) and weather resistance (e.g. adapted to withstand exposure to sunlight, wind, rain, snow, extreme temperatures and extreme cold). In addition, while
In embodiments, the roofing panels 103 can include any suitable type of roofing panels. For example, in some embodiments, the roofing panels 103 can have sufficiently robust structural integrity to be spanned across a substantial distance to form a roofing structure of the roof, e.g., extending between widely spaced rafters or other supports without the need for underlying mid-span support rafters. Each roofing panel may be composed of a core 115 and various layers 117/119, including at least one overlaying layer 117 defining an exterior facing surface 113 adapted to withstand exposure to weather (e.g., withstand exposure to sun, wind, rain, snow, extreme temperatures and extreme cold) and also may have an underlying layer 119 defining an interior facing surface 109 that maybe finished and which can serve as the ceiling of a building on which the roofing panels 103 are installed. The roofing panels 103, in some embodiments, can include a foam core configured to be lightweight and easy to handle and install by a small crew or a single installer.
In one embodiment illustrated in
In some embodiments, the roofing panels 103 can include structural insulated panels (SIP) or otherwise can be of a strength sufficient to span a large distance without the need for substantial support from underlying roof rafters 105. For example, the roofing panels 103 and the connectors located therebetween could be configured to be supported on rafters 105 (
Alternatively, in embodiments, the roofing panels 103 and the connectors could be configured for being supported by more closely spaced rafters 105 (e.g., rafters 105′ arranged at a spacing of 12 inches to 16 inches on center, such as indicated in
As shown in
In embodiments, the roofing panels 103 further could include any suitable number of layers of any suitable materials (e.g., including any of the roofing panel configurations disclosed in the incorporated-by-reference U.S. application Ser. No. 17/215,011). Alternatively, or in addition, any suitable roofing panels could be used, including roofing panels having a construction such as an engineered wood (e.g., oriented strand board), laminated constructions, solid materials, etc.
In embodiments, as illustrated in
In embodiments, the overlap portions 125 can be adhered, welded, and/or otherwise bonded or secured to the exterior surface of the adjacent roofing panel 103, so as to form a substantially waterproof seal over the seam 123 to resist migration of water through the seam 123 and between the roofing panels. For example, the overlap portions 125 can be configured with a peel-and-stick adhesive material or film for simple instillation of the roofing panels that can be covered with a release tape that can be removed in the field.
The roofing panels 103 can be of any suitable size for being mounted to rafters 105 having any suitable spacing. For example, in embodiments, the roofing panels can have a length (e.g., in a direction parallel with the rafters 105) of approximately 4 feet to 16 feet; approximately 4 feet to 14 feet; approximately 4 feet to 12 feet; approximately 4 feet to 10 feet; approximately 4 feet to 8 feet; approximately 4 feet to 6 feet; approximately 6 feet to 16 feet; approximately 6 feet to 14 feet; approximately 6 feet to 12 feet; approximately 6 feet to 10 feet; approximately 6 feet to 8 feet; approximately 8 feet to 16 feet; approximately 8 feet to 14 feet; approximately 8 feet to 12 feet; approximately 8 feet to 10 feet; approximately 10 feet to 16 feet; approximately 10 feet to 14 feet; approximately 10 feet to 12 feet; approximately 12 feet to 16 feet; approximately 12 feet to 14 feet; approximately 14 feet to 16 feet or any suitable length. In some embodiments, the roofing panels can have different lengths arranged in any combination along the slope of the roof for fitting a particular size roof.
In an exemplary embodiment, the roofing panels 103 (
In embodiments, the roofing panels may have cores 115 that can be made with various thicknesses of lightweight foam board depending on application and desired strength. In some embodiments, the core thickness is 0.75 inches to 12 inches. In other embodiments, the core thickness is 0.75 inches to 11 inches; 0.75 inches to 10 inches; 0.75 inches to 9 inches; 0.75 inches to 8 inches; 0.75 inches to 7 inches; 0.75 inches to 6 inches; 0.75 inches to 5 inches; 0.75 inches to 4 inches; 0.75 inches to 3 inches; 0.75 inches to 2 inches; 0.75 inches to 1 inch. In other embodiments, the core thickness is 1 inch to 12 inches; 2 inches to 12 inches; 3 inches to 12 inches; 4 inches to 12 inches; 5 inches to 12 inches; 6 inches to 12 inches; 7 inches to 12 inches; 8 inches to 12 inches; 9 inches to 12 inches; 10 inches to 12 inches; 11 inches to 12 inches. Additionally, in embodiments, the core thickness is 1 inch to 10 inches; 2 inches to 10 inches; 3 inches to 10 inches; 4 inches to 10 inches; 5 inches to 10 inches; 6 inches to 10 inches; 7 inches to 10 inches; 8 inches to 10 inches; 9 inches to 10 inches; 1 inch to 9 inches; 2 inches to 9 inches; 3 inches to 9 inches; 4 inches to 9 inches; 5 inches to 9 inches; 6 inches to 9 inches; 7 inches to 9 inches; 8 inches to 9 inches; 1 inch to 8 inches; 2 inches to 8 inches; 3 inches to 8 inches; 4 inches to 8 inches; 5 inches to 8 inches; 6 inches to 8 inches; 7 inches to 8 inches; 1 inch to 7 inches; 2 inches to 7 inches; 3 inches to 7 inches; 4 inches to 7 inches; 5 inches to 7 inches; 6 inches to 7 inches; 1 inch to 6 inches; 2 inches to 6 inches; 3 inches to 6 inches; 4 inches to 6 inches; 5 inches to 6 inches; 1 inch to 5 inches; 2 inches to 5 inches; 3 inches to 5 inches; 4 inches to 5 inches; 1 inch to 4 inches; 2 inches to 4 inches; 3 inches to 4 inches; 1 inch to 3 inches; 2 inches to 3 inches; 1 inch to 2 inches. Other core thicknesses can also be provided.
As shown in
The first connectors 107 can be mounted along a top side of respective rafters 105 such as by fasteners 135, adhesives, and/or other suitable features so that the flanges 131a/131b of the first connectors 107 extend along the lengths of the rafters 105 (e.g., along the slope of the roof) with their projections 133 extending upwardly, away from the rafters 105. In some embodiments, the roofing panels 103 can be positioned on the first connectors 107 so that, for example, peripheral side portions 137 of each roofing panel 103 are supported on the respective flanges (131a/131b) of the first connectors 107 and so that the peripheral side edges 139 of each roofing panel 103 abut the projection 133.
As shown in
In embodiments, one of the second connectors 111 can be positioned opposite to each of the first connectors 107 so that the plates 130 and flanges thereof define a recess in which the respective peripheral side portions 137 of the adjacent roofing panels are received and interleafed, and which will contact the exterior facing surfaces 113 of the adjacent roofing panels 103 along the respective peripheral side portions 137 of the adjacent roofing panels with the projections 133 of the second connectors 111 extending downwardly between the respective side edges 139 of the adjacent roofing panels. In exemplary embodiments, one or both of the side edges 139 of the adjacent roofing panels can abut the projections 133 of the second connector 111 and a corresponding first connector 107. Alternatively, the side edges 139 of the adjacent roofing panels could be spaced from the projection without departing from the disclosure. In embodiments, the projections 133 of the connectors can be configured to provide a space therebetween (in a direction parallel to the rafters 105) such that the recesses defined between the opposing flanges of each pair of associated first and second connectors, and in which the respective peripheral side portions 137 of the adjacent roofing panels are received, can be varied or adjusted to accommodate for receipt, engagement and capture of different thickness panels between the first and second connectors.
In embodiments, the first connector 107 and the second connector 111 can be attached to the roofing panels 103 by respective fasteners 141, 143, for example being received in bores, which can be formed as countersunk bores 142, in the flanges 131a, 131b. In embodiments, the side edges 139 and peripheral side portions 137 of the roofing panels are engaged and captured between the flanges of the first and second connectors, and the fasteners 141 can extend upwardly through the flanges 131a, 131b of the first connector 107 into the roofing panels 103 from the interior facing surfaces 109 of the roofing panels. The fasteners 143 can extend downwardly through the flanges 131a, 131b of the second connector 111 into the roofing panels 103 from the exterior surfaces 113. As shown in
As shown in
In some embodiments, at least the flanges of the second connector 111 further can be secured to the exterior facing surfaces 113 of the roofing panels 103 by a sealant adhesive. Non-limiting examples of sealants can include DuraGrip™ brand adhesive available from GAF of Parsippany, N.J., and/or another water penetration resistant sealant or other suitable material, which can help form a seal (e.g., a waterproof or watertight seal) at a junction between the flanges 131a, 131b of the second connector 111 and the exterior facing surfaces 113 of the roofing panels 103 as well as help create seal between the two adjacent roofing panels 103.
As shown in
In an exemplary embodiment, the width W (
In embodiments where the rafters 105 are spaced by a shorter distance than the width of the roofing panels 103 (e.g., the rafters 105 are arranged at spacing's of 2 feet on center or 16 inches on center) the first connectors 107 can be arranged at different spacings e.g., being spaced at 4 feet on center), one or more spacers 145 can be mounted to supporting intermediate rafters 105 located between the first connectors 107. Only one of the intermediate rafters 105 and spacers 145 is shown in the schematic view of
The thickness of the spacer 145 can be the same as the thickness of the plates 130 of the first connectors 107. In some embodiments, the intermediate rafters 105 and the spacers 145 could be omitted and the rafters 105 can be spaced at the same distance as the first connectors 107. For example, the rafters 105 could be spaced at 4 feet on center and one of the first connectors 107 could be secured to each of the rafters 105. In exemplary embodiments with wider spaced rafters 105, a double rafter configuration can be used, such as the double rafter 105′ as shown in
In embodiments, the roofing system 101 will be assembled to form a roof R. For example, a plurality of first connectors 107 can be mounted on respective rafters 105 at an appropriate spacing to accommodate the width of the roofing panels 103. The first connectors 107 can be secured along the length of the rafters 105 by the fasteners 135, which can be spaced along the length of the first connectors 107. Spacers 145 also can be mounted along the tops of the intermediate rafters 105, if needed, with the fasteners 149. The roofing panels 103 then can be positioned so that the peripheral side portions 137 thereof are supported on the flanges 131a/131b of respective first connectors 107 so that the side edges 139 of the roofing panels 103 are proximate to or abutting the respective projections 133 of the first connectors 107 (
In embodiments, an overlap portion 125 of a TPO membrane applied as one of the layers, e.g., the exterior layer 121 of each roofing panel 103 can be positioned to overlap a headlap portion H of an adjacent roofing panel that is downslope from a first or second roofing panel (
If utilized, the spacers 145 also can be releasably secured to the interior facing surface 109 of the roofing panel 103 with the fasteners 149 (
As shown in
With the damaged roofing panel removed from the roof structure, a replacement roofing panel can be installed in its place. For example, the replacement roofing panel can be secured to the first connectors 107 by the fasteners 141 and to the spacers 145 by the fasteners 149. The overlapping portion 125 of the third layer 121 (e.g., a TPO membrane of the replacement roofing panel) can be adhered to the exterior surface 113 of the adjacent roofing panel downslope from the replacement roofing panel to cover and seal the seam 123 formed therebetween and an overlapping portion 125 of the TPO membrane of an adjacent roofing panel upslope from the replacement roofing panel can be adhered to the exterior surface 113 of the replacement roofing panel to cover and seal the seam 123 therebetween. The second connectors 111 can be repositioned opposite to the respective first connectors 107 and secured to the replacement roofing panel and the respectively adjacent roofing panels with the fasteners 143. In some embodiments a sealant adhesive can be applied to seal the flanges 131a/131b of the second connectors 111 to the exterior surface 113 of the roofing panels along the peripheral side portions thereof.
In an embodiment shown in
Alternatively, the edges of the roofing panels 203 could be spaced apart (e.g., slightly spaced apart). In embodiments, for each location where two adjacent roofing panels 203 abut one another, a chamfer 261 also can be formed in the two adjacent roofing panels 203 at the bottom surfaces 109 (
As also shown in
As shown in
Any of the features of the various embodiments of the disclosure can be combined with replaced by, or otherwise configured with other features of other embodiments of the disclosure without departing from the scope of this disclosure. The configurations and combinations of features described above and shown in the figures are included by way of example.
The present disclosure has been described herein in terms of examples that illustrate principles and aspects of the present disclosure. The skilled artisan will understand, however, that a wide gamut of additions, deletions, and modifications, both subtle and gross, may be made to the presented examples without departing from the spirit and scope of the present disclosure.
The present patent application is a continuation of co-pending U.S. patent application Ser. No. 17/752,957, filed May 25, 2022, which claims the benefit of U.S. Provisional Patent Application No. 63/192,684, filed May 25, 2021.
Number | Date | Country | |
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63192684 | May 2021 | US |
Number | Date | Country | |
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Parent | 17752957 | May 2022 | US |
Child | 18122850 | US |