Roofing system including insulation and cover boards
US8470436B1 · kind B1 · utility
14Cited by
41References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2013 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Feb 4, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249989
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A roofing system includes a plurality of insulation boards adapted for overlying a roof deck to form a layer of insulation, and a plurality of cover boards adapted for overlying the layer of insulation. Each insulation board includes a polymer foam material having a first density. Each cover board includes a material including polyisocyanurate, the material having a second density greater than the first. The foam material of the insulation boards may include, for example, polystyrene, polyurethane, or a phenolic material. The insulation boards and cover boards may include facers on top or bottom surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.