Shingle with reinforced nail zone and method of manufacturing
US8607521B2 · kind B2 · utility
61Cited by
92References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2011 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Jun 29, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24752
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A roofing shingle is provided. The roofing shingles includes an overlay sheet including a headlap portion and a tab portion and an underlay sheet secured to the overlay sheet such that a region of the underlay sheet overlaps a region of the headlap portion of the overlay sheet. A reinforcement material is secured to the headlap portion of the overlay sheet. The reinforcement material is configured to improve nail pull-through. The reinforcement material extends beyond the overlapping regions of the headlap portion and the underlay sheet a distance of about 0.12 inches or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.