Method of securing roofing membrane using lightly adhesive release layer positioned between hook and loop fasteners
US11459760B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2021 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Jul 9, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D2003/3615
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A hook and loop system for attaching a roofing membrane into the top of a building insulation board including a roofing membrane with a fleece backing having a release sheet on the fleece backing. The release sheet is manually removed in the field to attach the fleece backing directly onto a layer of hooks that have been pre-attached onto the top of the insulation board. The release layer may be somewhat sticky, yet not adhere too tightly to the fleece layer such that its removal does not damage the fleece backing. The release layer may also be pre-rolled together with the fleece backed roofing membrane and shipped together as a unit into the field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.