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US 2022/0186498 A1Published application
Roofing shingles with sealant pressure relief channel
AssigneeBmic LLC
InventorOlan T. Leitch
Life of this patent
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Abstract
A roofing shingle has an upper surface, a lower surface, and a sealant material applied along the lower surface. A pressure relief channel is formed along the lower surface of the roofing shingle, with a release strip applied over the pressure relief channel. When the roofing shingle is paired with another roofing shingle in a stack, the sealant material of the roofing shingle is arranged in registration with the release strip and pressure relief channel of the other roofing shingle.
Claims20
A roofing shingle comprising:
- a substrate including:
- an upper surface having a headlap portion configured to be overlapped by at least one additional roofing shingle arranged in a next higher course of roofing shingles on a roof;
- and
- a lower surface opposite the upper surface, the lower surface having a pressure relief channel defined therein and extending along at least a portion of the lower surface;
- a strip of sealant material applied to the lower surface of the substrate;
- and
- a release strip positioned along the lower surface of the substrate and over the pressure relief channel;
- wherein, when the roofing shingle is aligned with a second roofing shingle in a stack of roofing shingles, the pressure relief channel of the roofing shingle is aligned with a strip of sealant material applied to a lower surface of the second roofing shingle.
5 more elements
A stack of roofing shingles, comprising:
- a plurality of roofing shingles, each of the roofing shingles comprising:
- an upper surface having a headlap portion configured to be overlapped by at least one additional roofing shingle arranged in a next higher course of roofing shingles on a roof,
- a lower surface having a pressure relief channel defined therein;
- a strip of sealant material disposed along at least a portion of the lower surface;
- and
- a release strip positioned over the pressure relief channel formed along the lower surface of each roofing shingle;
- wherein the plurality of roofing shingles is stacked such that the strip of sealant material of a first roofing shingle is aligned with the pressure relief channel of a second roofing shingle.
4 more elements
A method comprising:
- (a) moving a substrate of roofing shingle material along a path;
- (b) applying a coating layer to at least one surface of the substrate of roofing shingle material;
- (c) forming a pressure relief channel in the coating layer, the pressure relief channel extending along the coating layer;
- (d) applying a strip of sealant material to at least one surface of the substrate of roofing shingle material to form a strip of sealant material along the at least one surface of the substrate of roofing shingle material;
- and
- (e) applying a release strip over the pressure relief channel.
3 more elements
Dependencies are inferred from the claim text.