Weatherproof Roofing membrane and method for constructing the same
US4870796A · kind A · utility
47Cited by
13References
16Claims
0Family size
Inventors
Key dates
| Filing date | Nov 16, 1983 |
| Grant date | Oct 3, 1989 |
| Priority date | — |
| Expiry date | Nov 16, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B80/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A weatherproof roofing membrane, and method for constructing the same, comprises a plurality of layers of extensible reinforcing fabric bonded together with an elastomeric polymer, at least the bottom layer, but not the top layer, of the layers of fabric being spot anchored to the roof to form a continuous weatherproof membrane that is durable, light weight, flexible and fire retardant, and has a high degree of solar reflectivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.