Roof having resinous shingles
US5615523A · kind A · utility
82Cited by
42References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1995 |
| Grant date | Apr 1, 1997 |
| Priority date | — |
| Expiry date | Apr 24, 2015 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D1/20
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A roof includes a roof deck and a plurality of roofing shingles where the roofing shingles have the appearance of a wooden shake shingle and comprise organic, resinous material in, preferably a plastic material, an amount within the range of from about 16 to about 24 percent by weight, and a filler material in an amount within the range of from about 76 to about 84 percent by weight. The roof provides a Class A fire barrier when tested according to ASTM test E108-93 for flame spread, burning brand and intermittent flame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.