US3914916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roof construction system
Assignee: ROBERTSON-CECO Corp A DE CORP
•
Filing: 1974-02-04
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Granted: 1975-10-28
•
Expires: 1994-02-04
Abstract
Abstract A construction plank is disclosed which can be assembled in contiguous, aligned relationship with other planks into a construction unit to form a building roof or other section. The individual planks are of varying geometric shapes and in the preferred embodiment are a composite construction having a structural core or panel member and an exterior sheathing member. A sheet of insulation may be included between the structural panel and exterior sheathing. Opposite edges of the plank are configured to complementarily engage the edges of similar planks in a lap joint to obtain flush assembly. Fasteners secure adjacent panels together at the complementary edge structures. In the preferred embodiment, the plank includes transverse straps extending across the panels which are fastenable to adjacent plank straps and underlying supporting structural members to pretension the straps to increase the lateral strength of the assembly against uplift resulting from wind. A membrane sheet is adhered to the exterior surface of the plank and includes a flap portion adapted to overlie the marginal portion of the next adjacent panel to provide a weatherized covering. The flaps are sealable by flexible interlocking fasteners carried on the sheet flap and marginal portions in the form of rib and groove elements. In the corner area between adjacent planks, overlying membrane flap portions are sealed by a mechanical fastener extending through the flap layers or by vulcanization. In another embodiment the flap edges are sealed by vulcanizing overlapping edges of the membrane sheets. In still another embodiment the plank is adapted as a fire resistant wall component having a suitable interior facing and a weatherized exterior covering.
Inventors
- 👤 Harold Graves Simpson
- 👤 Warren Elsworth Scruggs
- 👤 Richard Clark Mcclain
- 👤 Norman Douglas Rice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:03
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/16; E04D13/1606; E04D13/1612; E04D13/1618; E04B; E04B7/00; E04B7/20; E04B7/22; E04D3/00; E04D3/36; E04D3/3601; E04D5/00; E04D5/14; E04D5/141; E04D5/142; E04D5/144; E04D5/145; E04D5/147
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
90 words
A method of roof construction comprising: erecting a roof supporting substructure; arranging a multiplicity of prefabricated roof planks each carrying an integral membrane sheet on said substructure in aligned contiguous relationship to enclose said roof; secruing said planks together at their abutting edges and ends in a lapping joint; securing spaced apart transversely extending strap members across said panels to said substructure and pretensioning said straps; sealing the membrane sheet carried on the planks one to another to seal the roof; and sealing the membrane corner areas adjacent abutting planks.
Claim 2
Independent Claim
90 words
A method of roof construction comprising: erecting a roof supporting substructure; arranging a multiplicity of prefabricated roof planks each carrying an integral membrane sheet on said substructure in aligned contiguous relationship to enclose said roof; secruing said planks together at their abutting edges and ends in a lapping joint; securing spaced apart transversely extending strap members across said panels to said substructure and pretensioning said straps; sealing the membrane sheet carried on the planks one to another to seal the roof; and sealing the membrane corner areas adjacent abutting planks.
Claim 3
Independent Claim
168 words
A method of roof construction comprising: erecting a roof supporting substructure; arranging a multiplicity of elongated, prefabricated panel members in contiguous relationship on the roof supporting substructure, the prefabricated panel members having waterproof upper surfaces and a flexible waterproof flap extending from the waterproof upper surface of at least one edge of each contiguous pair of edges of adjacent panel members, the flap being sealed along its length to the waterproof surface of the panel member to which it is attached to form a continuation of the waterproof surface; mechanically fastening the opposite edges of the panel members to the underlying substructure to resist upwardly directed wind loads on the panels by means of tension forces developed in the panel member between the opposite edges; and positioning a flexible flap over the mechanically fastened edges and sealing the flexible flap to the adjacent panel member to form a continuous watertight membrane between the watertight surfaces of the adjacent panel members along the contiguous edges of the panel members.
Claim 4
Independent Claim
168 words
A method of roof construction comprising: erecting a roof supporting substructure; arranging a multiplicity of elongated, prefabricated panel members in contiguous relationship on the roof supporting substructure, the prefabricated panel members having waterproof upper surfaces and a flexible waterproof flap extending from the waterproof upper surface of at least one edge of each contiguous pair of edges of adjacent panel members, the flap being sealed along its length to the waterproof surface of the panel member to which it is attached to form a continuation of the waterproof surface; mechanically fastening the opposite edges of the panel members to the underlying substructure to resist upwardly directed wind loads on the panels by means of tension forces developed in the panel member between the opposite edges; and positioning a flexible flap over the mechanically fastened edges and sealing the flexible flap to the adjacent panel member to form a continuous watertight membrane between the watertight surfaces of the adjacent panel members along the contiguous edges of the panel members.
Claim 5
Independent Claim
203 words
A method of roof construction comprising: erecting a roof supporting substructuRe; arranging a multiplicity of elongated, prefabricated panel members in contiguous relationship on the roof supporting substructure, the prefabricated panel members having waterproof upper surfaces and a flexible waterproof flap extending from the waterproof upper surface of at least one edge of each contiguous pair of edges of adjacent panel members, the flap being sealed along its length to the waterproof surface of the panel member to which it is attached to form a continuation of the waterproof surface, and having one half of a mechanically interlocking and sealing fastener, the other panel having a mating half of the fastener sealed along its length to the waterproof surface of the other of the adjacent panel members; mechanically fastening the opposite edges of the panel members to the underlying substructure to resist upwardly directed wind loads on the panels by means of tension forces developed in the panel member; and positioning a flexible flap over the mechanically fastened edges of the panel members and mechanically engaging the halves of the fasteners to form a continuous watertight membrane between the watertight surfaces of the adjacent panel members along the contiguous edges of the panel members.
Claim 6
Independent Claim
203 words
A method of roof construction comprising: erecting a roof supporting substructuRe; arranging a multiplicity of elongated, prefabricated panel members in contiguous relationship on the roof supporting substructure, the prefabricated panel members having waterproof upper surfaces and a flexible waterproof flap extending from the waterproof upper surface of at least one edge of each contiguous pair of edges of adjacent panel members, the flap being sealed along its length to the waterproof surface of the panel member to which it is attached to form a continuation of the waterproof surface, and having one half of a mechanically interlocking and sealing fastener, the other panel having a mating half of the fastener sealed along its length to the waterproof surface of the other of the adjacent panel members; mechanically fastening the opposite edges of the panel members to the underlying substructure to resist upwardly directed wind loads on the panels by means of tension forces developed in the panel member; and positioning a flexible flap over the mechanically fastened edges of the panel members and mechanically engaging the halves of the fasteners to form a continuous watertight membrane between the watertight surfaces of the adjacent panel members along the contiguous edges of the panel members.
Claim 7
Independent Claim
147 words
A method of roof construction comprising: erecting a roof supporting substructure; arranging a multiplicity of elongated, prefabricated panel members in contiguous relationship on the roof supporting substructure, the prefabricated panel members having a waterproof upper surface formed by a flexible waterproof membrane adhered to a tension member having a transverse tensil strength, the membrane extending beyond at least one edge of each contiguous pair of edges of adjacent panel members to form a flap; mechanically fastening the opposite edges of the tension members of the panel to the underlying substructure to resist upwardly directed wind loads on the panels by means of transverse tension forces developed in the tension member between the fastened edges; and positioning a flexible flap over the mechanically fastened edges of the tension member and sealing the flexible flap to the membrane of the adjacent panel member to form a continuous watertight membrane.
Claim 8
Independent Claim
147 words
A method of roof construction comprising: erecting a roof supporting substructure; arranging a multiplicity of elongated, prefabricated panel members in contiguous relationship on the roof supporting substructure, the prefabricated panel members having a waterproof upper surface formed by a flexible waterproof membrane adhered to a tension member having a transverse tensil strength, the membrane extending beyond at least one edge of each contiguous pair of edges of adjacent panel members to form a flap; mechanically fastening the opposite edges of the tension members of the panel to the underlying substructure to resist upwardly directed wind loads on the panels by means of transverse tension forces developed in the tension member between the fastened edges; and positioning a flexible flap over the mechanically fastened edges of the tension member and sealing the flexible flap to the membrane of the adjacent panel member to form a continuous watertight membrane.
Claim 9
Independent Claim
194 words
A method of roof construction comprising: erecting a roof supporting substructure including a plurality of spaced, parallel beam members; arranging a multiplicity of rectangular, prefabricated panel members in contiguous relationship on the beam members with the panel members disposed transversely of and spanning a plurality of beam members, the prefabricated panel members having waterproof upper surfaces and a flexible waterproof flap extending from the waterproof upper surface of at least one edge of each contiguous pair of edges of adjacent panel members, the flap being sealed along its length to the waterproof surface of the panel member to which it is attached to form a continuation of the waterproof surface; mechanically fastening the opposite edges of the panel members to the underlying beam members to resist upwardly directed wind loads on the panels by means of tension forces developed within the panel member; and positioning a flexible flap over the mechanically fastened edges and sealing the flexible flap to the adjacent panel member to form a continuous watertight membrane between the watertight surfaces of the adjacent panel members along and over contiguous edges of the panel members which are fastened to the beam members.
Claim 10
Independent Claim
194 words
A method of roof construction comprising: erecting a roof supporting substructure including a plurality of spaced, parallel beam members; arranging a multiplicity of rectangular, prefabricated panel members in contiguous relationship on the beam members with the panel members disposed transversely of and spanning a plurality of beam members, the prefabricated panel members having waterproof upper surfaces and a flexible waterproof flap extending from the waterproof upper surface of at least one edge of each contiguous pair of edges of adjacent panel members, the flap being sealed along its length to the waterproof surface of the panel member to which it is attached to form a continuation of the waterproof surface; mechanically fastening the opposite edges of the panel members to the underlying beam members to resist upwardly directed wind loads on the panels by means of tension forces developed within the panel member; and positioning a flexible flap over the mechanically fastened edges and sealing the flexible flap to the adjacent panel member to form a continuous watertight membrane between the watertight surfaces of the adjacent panel members along and over contiguous edges of the panel members which are fastened to the beam members.
Claim 11
Independent Claim
236 words
A method of roof construction comprising: erecting a roof supporting substructure including a plurality of spaced, parallel beam members; arranging a multiplicity of rectangular, prefabricated panel members in contiguous relationship on the beam members with the panel members disposed transversely of and spanning a plurality of beam members, the prefabricated panel members having waterproof upper surfaces and flexible waterproof flaps extending from the waterproof upper surface of at least oNe edge of each contiguous pair of edges of adjacent panel members, the flap being sealed along its length to the waterproof surface of the panel member to which it is attached to form a continuation of the waterproof surface and having one half of a mechanically interlocking and sealing fastener, the other panel having a mating half of the mechanically interlocking and sealing fastener sealed along its length to the waterproof surface of the other of the adjacent panel members; mechanically fastening the opposite edges of the panel members to the underlying beam members to resist upwardly directed wind loads on the panels by means of tension forces developed within the panel member; and positioning a flexible flap over the mechanically fastened edges of the panel members and mechanically engaging the halves of the fasteners to form a continuous watertight membrane between the watertight surfaces of the adjacent panel members along and over contiguous edges of the panel members which are fastened to the beam members.
Claim 12
Independent Claim
236 words
A method of roof construction comprising: erecting a roof supporting substructure including a plurality of spaced, parallel beam members; arranging a multiplicity of rectangular, prefabricated panel members in contiguous relationship on the beam members with the panel members disposed transversely of and spanning a plurality of beam members, the prefabricated panel members having waterproof upper surfaces and flexible waterproof flaps extending from the waterproof upper surface of at least oNe edge of each contiguous pair of edges of adjacent panel members, the flap being sealed along its length to the waterproof surface of the panel member to which it is attached to form a continuation of the waterproof surface and having one half of a mechanically interlocking and sealing fastener, the other panel having a mating half of the mechanically interlocking and sealing fastener sealed along its length to the waterproof surface of the other of the adjacent panel members; mechanically fastening the opposite edges of the panel members to the underlying beam members to resist upwardly directed wind loads on the panels by means of tension forces developed within the panel member; and positioning a flexible flap over the mechanically fastened edges of the panel members and mechanically engaging the halves of the fasteners to form a continuous watertight membrane between the watertight surfaces of the adjacent panel members along and over contiguous edges of the panel members which are fastened to the beam members.
Claim 13
Independent Claim
180 words
A method of roof construction comprising: erecting a roof supporting substructure including a plurality of spaced, parallel beam members; arranging a multiplicity of rectangular, prefabricated panel members in contiguous relationship on the beam members with the panel members disposed transversely of and spanning a plurality of beam members, the prefabricated panel members having a waterproof flexible membrane adhered over tension means extending transversely of the panel member, the membrane extending beyond at least one edge of each contiguous pair of edges of adjacent panel members to form a flexible flap; mechanically fastening the tension means at opposite edges of the panel members to the underlying beam members to resist upwardly directed wind loads on the panels at least partially by means of tension forces developed within the tension means; and positioning a flexible flap over the mechanically fastened edges and sealing the flexible flap to the adjacent panel member to form a continuous watertight membrane between the watertight surfaces of the adjacent panel members along and over contiguous edges of the panel members which are fastened to the beam members.
Claim 14
Independent Claim
180 words
A method of roof construction comprising: erecting a roof supporting substructure including a plurality of spaced, parallel beam members; arranging a multiplicity of rectangular, prefabricated panel members in contiguous relationship on the beam members with the panel members disposed transversely of and spanning a plurality of beam members, the prefabricated panel members having a waterproof flexible membrane adhered over tension means extending transversely of the panel member, the membrane extending beyond at least one edge of each contiguous pair of edges of adjacent panel members to form a flexible flap; mechanically fastening the tension means at opposite edges of the panel members to the underlying beam members to resist upwardly directed wind loads on the panels at least partially by means of tension forces developed within the tension means; and positioning a flexible flap over the mechanically fastened edges and sealing the flexible flap to the adjacent panel member to form a continuous watertight membrane between the watertight surfaces of the adjacent panel members along and over contiguous edges of the panel members which are fastened to the beam members.
Claim 15
Independent Claim
200 words
A method of roof construction comprising: erecting a roof supporting substructure including a plurality of spaced, parallel beam members; arranging a multiplicity of rectangular, prefabricated panel members in contiguous relationship on the beam members with the panel members disposed transversely of and spanning a plurality of beam members, the prefabricated panel members having a layer of insulation and at least one thin sheet of tension material above the insulation, and a flexible waterproof membrane adhered over the upper surface of the panel member, the membrane extending beyond at least one edge of each contiguous pair of edges of adjacent panel members to form a flexible flap; mechanically fastening the panel member including the tension means at opposite edges of the panel members to the underlying beam members to resist upwardly directed wind loads on the panels at least partially by means of tension forces developed within the tension means; and positioning a flexible flap over the mechanically fastened edges and sealing the flexible flap to the adjacent panel member to form a continuous watertight membrane between the watertight surfaces of the adjacent panel members along and over contiguous edges of the panel members which are fastened to the beam members.
Claim 16
Independent Claim
200 words
A method of roof construction comprising: erecting a roof supporting substructure including a plurality of spaced, parallel beam members; arranging a multiplicity of rectangular, prefabricated panel members in contiguous relationship on the beam members with the panel members disposed transversely of and spanning a plurality of beam members, the prefabricated panel members having a layer of insulation and at least one thin sheet of tension material above the insulation, and a flexible waterproof membrane adhered over the upper surface of the panel member, the membrane extending beyond at least one edge of each contiguous pair of edges of adjacent panel members to form a flexible flap; mechanically fastening the panel member including the tension means at opposite edges of the panel members to the underlying beam members to resist upwardly directed wind loads on the panels at least partially by means of tension forces developed within the tension means; and positioning a flexible flap over the mechanically fastened edges and sealing the flexible flap to the adjacent panel member to form a continuous watertight membrane between the watertight surfaces of the adjacent panel members along and over contiguous edges of the panel members which are fastened to the beam members.
Claim 17
Independent Claim
175 words
A method of roof construction comprising: erecting a roof supporting substructure; fabricating a multiplicity of panel members having waterproof upper surfaces and a flexible waterproof flap extending from the waterproof upper surface from at least one edge of at least a portion of the panel members, the flap being sealed along its length to the waterproof surface of the panel member to which it is attached to form a continuation of the waterproof surface; arranging the multiplicity of panel members in contiguous relationship on the roof supporting structure with at least one flap provided for each pair of contiguous edges; mechanically fastening the opposite edges of the panel members to the underlying substructure to resist upwardly directed wind loads on the panels by means of tension forces developed in the panel member; and positioning a flexible flap over the mechanically fastened edges and sealing the flexible flap to the adjacent panel member to form a continuous watertight membrane between the watertight surfaces of the adjacent panel members along the contiguous edges of the panel members.
Claim 18
Independent Claim
175 words
A method of roof construction comprising: erecting a roof supporting substructure; fabricating a multiplicity of panel members having waterproof upper surfaces and a flexible waterproof flap extending from the waterproof upper surface from at least one edge of at least a portion of the panel members, the flap being sealed along its length to the waterproof surface of the panel member to which it is attached to form a continuation of the waterproof surface; arranging the multiplicity of panel members in contiguous relationship on the roof supporting structure with at least one flap provided for each pair of contiguous edges; mechanically fastening the opposite edges of the panel members to the underlying substructure to resist upwardly directed wind loads on the panels by means of tension forces developed in the panel member; and positioning a flexible flap over the mechanically fastened edges and sealing the flexible flap to the adjacent panel member to form a continuous watertight membrane between the watertight surfaces of the adjacent panel members along the contiguous edges of the panel members.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-27 | 1979-04-28 | 1979-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-27 | 1983-04-28 | 1983-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-27 | 1987-04-28 | 1987-10-28 | $7700.00 | Window Closed / Lapsed |