Patent ID: 9410323
Filing Date: 2016-08-09
CPC Classification: E04D

Claim Text:
1. A roofing system comprising: single-layer shingles having a headlap portion; and a buttlap portion; wherein said headlap portion has a maximum headlap width that is less than a maximum buttlap width of said buttlap portion; wherein said buttlap portion includes a longitudinal rear edge, a lateral leading edge, a lateral trailing edge, and a non-straight longitudinal front-most edge having a central horizontal portion, a left horizontal portion, a right horizontal portion, a first transition portion, and a second transition portion, wherein the central horizontal portion extends away from the shingle to define a first buttlap width, the left horizontal portion is connected between the lateral trailing edge and the first transition portion, the right horizontal portion is connected between the lateral leading edge and the second transition portion, and the left horizontal portion and the right horizontal portion each extends away from the shingle to define a second buttlap width, and wherein the first transition portion is further connected between the left horizontal portion and the central horizontal portion and the second transition portion is further connected between the central horizontal portion and the right horizontal portion; wherein the roofing system comprises a plurality of courses of said shingles, and wherein a trailing lateral edge of a subsequently installed shingle in a first course of shingles overlaps a leading lateral edge of a horizontally adjacent previously installed shingle in the first course to provide a side-lap region; and wherein said buttlap portion includes an exposed buttlap portion, and wherein the exposed buttlap portion has a surface area that is greater than the surface area of said headlap portion.