Laminated roofing shingle system and shingles for use therein
US9021760B2 · kind B2 · utility
55Cited by
33References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2011 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Apr 17, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D2001/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A roofing system comprising laminated roofing shingles having a reduced-width headlap portion and a buttlap portion, wherein the roofing system comprises a plurality of courses, and wherein a trailing edge of a subsequently installed shingle in a course overlaps the leading edge of an adjacent previously installed shingle in the same course. The reduced-width headlap portion of the roofing shingles has a width that is less than the width of the buttlap portion. The roofing shingle comprises a first and a second shingle sheet and the lateral edges of the first shingle sheet are aligned with the lateral edges of the second sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.