Roofing system including roofing components and methods
US8597779B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2013 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | May 24, 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 foam material that includes polyisucyanurate, the 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 roofing system may further include a waterproofing membrane adapted for overlying the cover boards. 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.