US 12,031,332 B2
Roofing materials and related methods
Thierry Nguyen, San Francisco, CA (US); and William Sirski, San Jose, CA (US)
Assigned to GAF Energy LLC, Parsippany, NJ (US)
Filed by GAF Energy LLC, Parsippany, NJ (US)
Filed on Oct. 18, 2023, as Appl. No. 18/489,458.
Claims priority of provisional application 63/419,185, filed on Oct. 25, 2022.
Prior Publication US 2024/0133180 A1, Apr. 25, 2024
Int. Cl. E04D 1/00 (2006.01); B32B 3/26 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); E04D 1/28 (2006.01)
CPC E04D 1/28 (2013.01) [B32B 3/266 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 2307/402 (2013.01); B32B 2419/06 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A roofing system comprising:
a roofing substrate;
a first roofing shingle on the roofing substrate, wherein the first roofing shingle comprises:
a first layer,
wherein the first layer comprises a first thermoplastic polymer through an entire thickness of the first layer; and
a second layer on the first layer,
wherein the second layer comprises a second thermoplastic polymer through an entire thickness of the second layer,
wherein a plurality of openings is formed in the second layer,
wherein each of the plurality of openings extends through the second layer, from a first surface of the second layer to a second surface of the second layer,
 wherein the second surface of the second layer is opposite the first surface of the second layer,
 wherein the second surface of the second layer is an upper surface of the second layer,
wherein each of the plurality of openings does not extend to any outer edge of the second layer;
wherein at least a portion of an upper surface of the first layer is exposed through the plurality of openings of the second layer; and
a second roofing shingle on the roofing substrate,
wherein the second roofing shingle is a photovoltaic shingle.