Pleated roofing membrane and roofing shingle system
US7765763B2 · kind B2 · utility
50Cited by
21References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2006 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | Jan 31, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D1/36
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
This invention relates to an underlayment for use under a plurality of courses of roofing shingles. The underlayment includes a water impermeable membrane layer containing at least one flap extending horizontally across the membrane layer. The flap is movable between a flat position and a raised position. In the raised position, an upper edge of a roofing shingle can be positioned under the flap. The upper edge of the roofing shingle can then be subsequently overlapped by the flap when the flap is moved into the flat position. The flap can then subsequently be overlapped by another course of roofing shingles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.