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

Claim 18:
19. A system, comprising:
a plurality of roofing shingles installed on a roof deck,
wherein each of the plurality of roofing shingles includes
a first end, a second end opposite the first end, and a first edge extending from the first end to the second end,
a head lap extending from a first location between the first end and the second end to a second location between the first end and the second end,
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,

a reveal portion extending from the first location to the second location,
wherein the reveal portion includes a first width,
wherein each of the plurality of grooves includes a second width,
wherein the second width is 10% to 100% of the first width,

a first side lap at the first end, and
a second side lap at the second end,
wherein the second side lap of a first one of the plurality of roofing shingles overlays and is attached to the first side lap of a second one of the plurality of roofing shingles,
wherein a seam is located between 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, and
wherein a longitudinal axis of each of the plurality of grooves does not intersect the seam.