Coated roofing insulation and roofing systems including such insulations
US6398976B1 · kind B1 · utility
15Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2000 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Jan 23, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A single ply membrane roofing system includes a roofing insulation board which, preferably, is at least 45% by dry weight expanded perlite. One major surface of the insulation board is coated with a latex coating comprising, by dry weight, between 48.3% and 96% clay; between 3.1% and 33.3% latex; and between 0% and 34% sodium silicate. A single ply roofing membrane is adhered to the coated major surface of the insulation board with a roofing contact adhesive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.