Patent ID: 11965335
Assignee: GAF ENERGY LLC
Field: Civil engineering (Other fields)
Classification: CPC E  H  Y | IPC E  H

Claim 7:
8. The system of claim 1, wherein the head lap of each of the plurality of roofing shingles includes a plurality of grooves, each of which extends from a first end thereof, located proximate to the first edge and between the first end of a corresponding one of the plurality of roofing shingles and the second end of the corresponding one of the plurality of roofing shingles, to a second end thereof, located proximate to the first location, and wherein the head lap of the first one of the plurality of roofing shingles and the head lap of the second one of the plurality of roofing shingles form a seam therebetween, and wherein a longitudinal axis of each of the plurality of grooves does not intersect the seam.