Roofing seam installation process and products for the production of a seamed roof
US5976292A · kind A · utility
14Cited by
33References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1997 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Oct 6, 2017 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D15/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A process for preparing a lap seam for roofing comprising applying a butyl rubber-containing primer with a mesh pad to the EPDM membrane surfaces to be joined. The primer is applied with a long-handled applicator to permit the roofer to stand during priming. Thereafter a splice tape is positioned between the primed surfaces to form a seam structure and pressure is applied to the structure thus provided to form an adhesively-held lap seam characterized by being watertight and having superior peel strength when compared to other methods of making seam tapes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.