US 12,291,870 B2
Roofing shingles with sealant pressure relief channel
Olan T. Leitch, Mt. Juliet, TN (US)
Assigned to BMIC LLC, Dallas, TX (US)
Filed by BMIC LLC, Dallas, TX (US)
Filed on Dec. 2, 2022, as Appl. No. 18/073,887.
Application 18/073,887 is a continuation of application No. 17/548,621, filed on Dec. 13, 2021, granted, now 11,519,176.
Claims priority of provisional application 63/125,158, filed on Dec. 14, 2020.
Prior Publication US 2023/0203813 A1, Jun. 29, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. E04D 1/26 (2006.01); E04D 1/34 (2006.01)
CPC E04D 1/26 (2013.01) [E04D 1/34 (2013.01); E04D 2001/3435 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A roofing shingle comprising:
a plurality of layers of shingle material, the plurality of layers comprising:
at least one layer forming an exterior surface of the roofing shingle and including an upper surface having a headlap portion, the 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; the headlap portion comprising a substrate coated with asphalt;
at least one additional layer attached to the at least one layer and including a lower surface opposite the upper surface;
a pressure relief channel formed in the asphalt of the upper surface and extending along a portion of the headlap portion of the roofing shingle;
a release strip positioned over the pressure relief channel; and
a strip of sealant material applied to the lower surface;
wherein the strip of sealant material is positioned along a lower edge of the roofing shingle, and the pressure relief channel is formed along an upper edge of the roofing shingle such that the strip of sealant material applied to the lower surface is not aligned with the pressure relief channel formed in the upper surface;
wherein a portion of the lower surface of the at least one additional layer directly opposite the pressure relief channel is substantially planar with a remainder of the lower surface;
wherein the roofing shingle is configured to be stacked in a stack of roofing shingles with the upper surface of the roofing shingle facing upwardly and with the lower surface of the roofing shingle facing downwardly such that when the roofing shingle is aligned with a second roofing shingle in the stack of roofing shingles, a lower surface of the second roofing shingle is positioned on top of the upper surface of the roofing shingle and the pressure relief channel formed in the asphalt of the upper surface of the roofing shingle is aligned with the strip of sealant material applied to the lower surface of the second roofing shingle;
wherein the pressure relief channel of the roofing shingle is configured to at least partially receive the strip of sealant material of the second roofing shingle therein.