US4783942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite roof deck assembly with polymeric membrane adhered to fiberglass mat
Assignee: Loadmaster Systems Inc
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Filing: 1987-04-15
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Granted: 1988-11-15
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Expires: 2007-04-15
Abstract
Abstract A composite roof/roof deck assembly and method of installation wherein a roof covering of polymeric sheet material is adhered to an underlying gypsum board roof substrate with a water based polymeric adhesive. The gypsum board has a porous fibrous glass matte facing to enhance bonding between the water-based adhesive and the gypsum board.
Inventors
- 👤 C. Lynn Nunley
- 👤 Joe W. Tomaselli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:44
CPC Classifications
E; E04; E04D; E04D11/00; E04D11/02; E04D13/00; E04D13/16; E04D13/1606; E04D13/1681
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
72 words
A composite roof deck assembly comprising: purlins; corrugated material; means securing said corrugated material to said purlins; a substantially rigid porous substrate layer having a facing of fibrous matte material; mechanical fasteners securing said layer to said corrugated material; a substantially continuous polymeric sheet disposed over said substrate layer; and a water based, polymeric adhesive disposed between said substrate layer and said polymeric sheet to join said substrate layer to said sheet.
Claim 2
Dependent Claim
72 words
A composite roof deck assembly comprising: purlins; corrugated material; means securing said corrugated material to said purlins; a substantially rigid porous substrate layer having a facing of fibrous matte material; mechanical fasteners securing said layer to said corrugated material; a substantially continuous polymeric sheet disposed over said substrate layer; and a water based, polymeric adhesive disposed between said substrate layer and said polymeric sheet to join said substrate layer to said sheet.
Claim 3
Dependent Claim
18 words
The composite roof deck assembly according to claim 1 wherein said substrate layer comprises: glass mat-faced gypsum material.
Claim 4
Dependent Claim
16 words
The composite roof deck assembly of claim 1 wherein said polymeric sheet comprises rubber sheet material.
Claim 5
Dependent Claim
18 words
The composite roof deck assembly of claim 3 wherein said rubber sheet material comprises ethylene propylene diene terpolymer.
Claim 6
Dependent Claim
32 words
The composite roof/roof deck assembly of claim 4 wherein said water based, polymeric adhesive further comprises: methanol, deionized water, acrylic acid polymer, sodium hydroxide, polyvinyl alcohol/vinyl acetate, polyisoprene latex, and aluminum silicate.
Claim 7
Dependent Claim
72 words
A composite roof/roof deck assembly comprising: corrugated steel; purlins; means securing said corrugated steel to said purlins; mineral board overlying said corrugated steel and connected thereto by fasteners extending through said mineral board and said corrugated steel; a fiberglass matte on said mineral board to provide porous textured face surfaces on said mineral board; water based polymeric adhesive overlying said mineral board, and a polymeric sheet overlying said water based polymeric adhesive.
Claim 8
Dependent Claim
72 words
A composite roof/roof deck assembly comprising: corrugated steel; purlins; means securing said corrugated steel to said purlins; mineral board overlying said corrugated steel and connected thereto by fasteners extending through said mineral board and said corrugated steel; a fiberglass matte on said mineral board to provide porous textured face surfaces on said mineral board; water based polymeric adhesive overlying said mineral board, and a polymeric sheet overlying said water based polymeric adhesive.
Claim 9
Dependent Claim
26 words
The composite roof/roof deck assembly according to claim 6, further comprising a layer of insulation sheet material disposed between said corrugated steel and said mineral board.
Claim 10
Dependent Claim
15 words
The composite roof/roof deck assembly according to claim 6, wherein said mineral board comprises: gypsum.
Claim 11
Dependent Claim
17 words
The composite roof/roof deck assembly according to claim 6, wherein said polymeric sheet further comprises: an elastomer.
Claim 12
Dependent Claim
14 words
The composite roof/roof deck assembly according to claim 9, wherein said elastomer is rubber.
Claim 13
Dependent Claim
17 words
The composite roof/roof deck assembly according to claim 10, wherein said rubber is ethylene propylene diene terpolymer.
Claim 14
Dependent Claim
14 words
The composite roof/roof deck assembly according to claim 10, wherein said rubber is vulcanized.
Claim 15
Dependent Claim
25 words
The composite roof/roof deck assembly according to claim 10, wherein said sheet is about 0.045 inches thick and weighs about 0.30 pounds per square foot.
Claim 16
Dependent Claim
33 words
The composite roof/roof deck assembly according to claim 6, wherein said water based polymeric adhesive further comprises: methanol, deionized water, acrylic acid polymer, sodium hydroxide, polyvinyl alcohol/vinyl acetate, polyisoprene latex, and aluminum silicate.
Claim 17
Dependent Claim
58 words
The composite roof/roof deck assembly according to claim 14, wherein said water based, polymeric adhesive further comprises: about 50 weight percent polyisoprene latex, about 25 weight percent polyvinyl alcohol/vinyl acetate, about 15 weight percent deionized water, about 8 weight percent aluminum silicate, and less than about one weight percent each of methanol, acrylic acid polymer and sodium hydroxide.
Claim 18
Dependent Claim
84 words
A composite roof deck assembly comprising: spaced purlins; a rigid deck spanning said purlins; means securing said deck to said purlins; mineral board overlying said deck; fastener means extending through said mineral board and into said deck securing said mineral board to said deck; a fiberglass matte on the upper surface of said mineral board to provide a porous textured face surface on said mineral board; water based polymeric adhesive overlying said fiberglass matte; and a polymeric sheet overlying said water based polymeric adhesive.
Claim 19
Dependent Claim
84 words
A composite roof deck assembly comprising: spaced purlins; a rigid deck spanning said purlins; means securing said deck to said purlins; mineral board overlying said deck; fastener means extending through said mineral board and into said deck securing said mineral board to said deck; a fiberglass matte on the upper surface of said mineral board to provide a porous textured face surface on said mineral board; water based polymeric adhesive overlying said fiberglass matte; and a polymeric sheet overlying said water based polymeric adhesive.
Claim 20
Dependent Claim
18 words
A composite roof deck assembly according to claim 16 wherein said deck comprises a sheet of impervious material.
Claim 21
Dependent Claim
18 words
A composite roof deck assembly according to claim 17, said sheet of impervious material comprising: a steel sheet.
Claim 22
Dependent Claim
15 words
A composite roof deck assembly according to claim 18, said steel sheet comprising: corrugated steel.
Claim 23
Dependent Claim
19 words
A composite roof deck assembly according to claim 18, said fasteners extending through said mineral board comprising threaded fasteners.
Claim 24
Dependent Claim
15 words
A composite roof deck according to claim 20, said polymeric sheet comprising: rubber sheet material.
Claim 25
Dependent Claim
20 words
A composite roof deck assembly according to claim 21 wherein said rubber sheet material comprises : ethylene propylene diene terpolymer.
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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) | 1991-11-15 | 1992-05-16 | 1992-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-15 | 1996-05-16 | 1996-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-15 | 2000-05-16 | 2000-11-15 | $7700.00 | Window Closed / Lapsed |