Asphalt shingles with a fire-retardant additive
US10774535B2 · kind B2 · utility
1Cited by
49References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2017 |
| Grant date | Sep 15, 2020 |
| Priority date | — |
| Expiry date | Nov 8, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D2001/005
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A roofing shingle having a fire-retardant material added to the shingle in specific locations is provided. In one aspect a roofing system with two or more asphalt-coated substrates and a sealant material provided between the substrates is provided. The sealant material adheres an overlying and underlying shingle together and can contain a fire-retardant material. In a second aspect of the present invention, a multi-layer laminated shingle is provided with an adhesive material between one or more asphalt-coated substrates which adheres the asphalt-coated substrates together and can contain a fire-retardant material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.