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US 11,933,048 B2Granted
Shingles with increased hydrophobicity
AssigneeOwens Corning Intellectual Capital, LLC
InventorsDonn R. Vermilion, Xiujuan Zhang, William Brian Ward, Chris Armintrout
Life of this patent
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Abstract
A shingle includes a substrate having an asphalt coating on a top surface of the substrate and on a bottom surface of the substrate. A surface layer of granules is embedded in the asphalt on the top surface of the substrate. A backdust layer of particles is embedded in the asphalt on the bottom surface of the substrate. A sealant is disposed on the backdust. A hydrophobic material is applied to the sealant.
Claims9
A method of manufacturing a shingle, the method comprising:
- coating a substrate with asphalt to form an asphalt coated substrate;
- applying granules to a top surface of the asphalt coated substrate;
- applying backdust to a bottom surface of the asphalt coated substrate;
- applying a sealant layer to the backdust, wherein the sealant layer comprises a top surface and a bottom surface, wherein the top surface of the sealant layer abuts the backdust;
- and
- applying a hydrophobic coating to the bottom surface of the sealant layer.
3 more elements
Dependencies are inferred from the claim text.