Roofing material with locally applied fire resistant material
US9447581B2 · kind B2 · utility
6Cited by
24References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2015 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | Dec 22, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D2001/005
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A roofing shingle having fire resistance material added to the shingle in a localized area includes a substrate having a first portion and a second portion, a first asphalt-based coating impregnating the first portion, the first asphalt coating including a fire retardant material, and a second asphalt-based coating impregnating the second portion, the second asphalt coating containing less of the fire retardant material than the first asphalt coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.