Web or vapor retarder with tie-strap
US8438810B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2009 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Apr 7, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24008
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A vapor retarder system includes a vapor retarder sheet. At least one and typically a plurality of parallel spaced-apart tie-straps are located adjacent an inner surface of the sheet, and the tie-strap extend across a width of the sheet and are connected to the sheet at multiple connection locations that are spaced from each other along a length of the tie strap. The sheet includes drape regions where the sheet is disconnected from the tie straps between successive connection locations. The tie-straps and drape regions ensure that the vapor retarder sheet is installed over roof purlins with the proper drape between the purlins to obtain the required insulation R-values. A fall-protection net or sheet can also be constructed and/or installed in the same manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.