Patent US4625469A successfully refreshed from Google Patents.
US4625469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Replacement flat roof insulation cover
Assignee: WEATHERGUARD SECURITY TOPS Inc
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Filing: 1985-11-12
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Granted: 1986-12-02
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Expires: 2005-11-12
Abstract
Abstract Roof replacement structure for flat roof building having panels of rigid insulation applied over the roof surface. A flexible membrane is applied over the rigid insulation and a periphery of the membrane overlapping a side of the building is fastened thereto with a termination bar.
Inventors
- 👤 Thomas H. Gentry
- 👤 Robert W. Mays
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:14
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/36; E04D3/3601; E04D13/00; E04D13/14; E04D13/1407; E04D5/00; E04D5/14; E04D5/141; E04D5/142; E04D5/144; E04D5/146; E04D5/149
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
161 words
A roof replacement structure for a building having a substantially flat roof at about right angles to the building sidewalls comprising: (a) contiguous panels of rigid insulation applied over the flat roof and substantially covering the roof exposed flat surfaces; (b) a flexible, water impervious membrane fastened over the panels of rigid insulation and the roof with a plurality of mechanical fasteners, the membrane having a plurality of extensions covering the mechanical fasteners, the extensions overlapping the mechanical fasteners and being heat sealed to the membrane; (c) a periphery of the membrane overlapping the upper portion of the building sidewalls and mechanically fastened thereto with a termination insert bar having an inboard and outboard side; and (d) the termination insert bar having a first and second leg on the outboard side holding a roofing member insert and a first and second nose on the inboard side, at least one nose in contact with the periphery of the membrane overlapping the sidewall.
Claim 2
Dependent Claim
161 words
A roof replacement structure for a building having a substantially flat roof at about right angles to the building sidewalls comprising: (a) contiguous panels of rigid insulation applied over the flat roof and substantially covering the roof exposed flat surfaces; (b) a flexible, water impervious membrane fastened over the panels of rigid insulation and the roof with a plurality of mechanical fasteners, the membrane having a plurality of extensions covering the mechanical fasteners, the extensions overlapping the mechanical fasteners and being heat sealed to the membrane; (c) a periphery of the membrane overlapping the upper portion of the building sidewalls and mechanically fastened thereto with a termination insert bar having an inboard and outboard side; and (d) the termination insert bar having a first and second leg on the outboard side holding a roofing member insert and a first and second nose on the inboard side, at least one nose in contact with the periphery of the membrane overlapping the sidewall.
Claim 3
Dependent Claim
25 words
A roof structure according to claim 1, wherein the first and second nose on the termination insert bar inboard side are of substantially equal length.
Claim 4
Dependent Claim
38 words
A roof structure according to claim 1, wherein the first and second nose on the termination insert bar inboard side are of different lengths and the nose in contact with the membrane is longer than the other nose.
Claim 5
Dependent Claim
39 words
A roof structure according to claim 1, wherein a vent pipe is capped with an inverted cone with its apex cut to accommodate the pipe and a brim integral with the cone is heat sealed to the flexible membrane.
Claim 6
Dependent Claim
39 words
A roof structure according to claim 1, wherein a solar powered roof vent integral with an outer flange is affixed over the rigid insulation and through the impervious membrane and is sealed to the flexible membrane at the flange.
Claim 7
Independent Claim
133 words
A method of repairing a flat roof at about right angles to its supporting sidewalls by: (a) applying panels of rigid insulation in abutting relationship over all exposed flat surfaces of the roof; (b) mechanically fastening the rigid insulation to the flat roof; (c) covering the rigid insulation with a flexible water impervious insulated membrane; (d) mechanically fastening the flexible membrane along multiple transverse lines to the rigid insulation; (e) overlapping and heat sealing edges of the flexible membrane over all mechanical fasteners; (f) overlapping the periphery of the flexible membrane along the sidewalls; (g) mechanically fastening the flexible membrane along the sidewalls with a termination insert bar having first and second legs; and (h) inserting a strip of flexible membrane between the first and second legs to cover all exposed mechanical fasteners.
Claim 8
Independent Claim
133 words
A method of repairing a flat roof at about right angles to its supporting sidewalls by: (a) applying panels of rigid insulation in abutting relationship over all exposed flat surfaces of the roof; (b) mechanically fastening the rigid insulation to the flat roof; (c) covering the rigid insulation with a flexible water impervious insulated membrane; (d) mechanically fastening the flexible membrane along multiple transverse lines to the rigid insulation; (e) overlapping and heat sealing edges of the flexible membrane over all mechanical fasteners; (f) overlapping the periphery of the flexible membrane along the sidewalls; (g) mechanically fastening the flexible membrane along the sidewalls with a termination insert bar having first and second legs; and (h) inserting a strip of flexible membrane between the first and second legs to cover all exposed mechanical fasteners.
Claim 9
Dependent Claim
58 words
Method according to claim 6, wherein a hole is cut in the flexible membrane and rigid insulation to accommodate an exhaust pipe and covering the pipe with an inverted cone having an integral brim, an apex of the cone being cut to receive the pipe, and the brim of the cone being heat sealed to the flexible membrane.
Claim 10
Dependent Claim
38 words
Method according to claim 6, wherein a hole is cut in the flexible membrane and a solar powered roof vent with an integral flange is mounted over the insulation and the flange is affixed to the flexible membrane.
Claim 11
Dependent Claim
46 words
Method according to claim 6, wherein a ribbed porch roof pan is affixed to one sidewall and the flexible membrane is cut over each rib of the pan and sealed in the bottom of each pan with putty tape and sealant is applied at each rib.
Claim 12
Dependent Claim
14 words
Method according to claim 6, wherein the flexible membrane employed is an ethylene interpolymer.
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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) | 1989-12-01 | 1990-06-02 | 1990-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-01 | 1994-06-02 | 1994-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-01 | 1998-06-02 | 1998-12-02 | $7700.00 | Window Closed / Lapsed |