Back to results
US 8,007,898 B2Granted
Roofing material with directionally dependent properties
AssigneeCool Angle LLC
InventorsKirk Matthew Bailey, Mark Earl Ewing
Life of this patent
Estimating the term…
Abstract
Roofing material with an irregular surface and tailored radiation properties and tailored aesthetic properties in separate directions, simultaneously. This provides enhanced thermal performance in the sun direction and aesthetically pleasing visual appearance from viewing directions.
Claims19
A roofing material comprising:
- a roofing shingle with at least one non-planar surface for exposure to environmental conditions, wherein the roofing shingle comprises granules of various sizes to form the non-planar surface;
- a coating directionally disposed on a portion of the non-planar surface to cover less than all of the non-planar surface, including a common side of at least some of the granules, and approximately aligned to face a common direction, wherein other remaining portions of the non-planar surface are approximately aligned to face an opposite direction, wherein the coating has an energy-efficiency attribute that is different from a corresponding attribute of the non-planar surface on which the coating is disposed.
A method of producing a roofing material, the method comprising:
- disposing a coating on a portion of a non-planar surface of a roofing shingle, wherein the roofing shingle comprises granules of various sizes to at least partially form the non-planar surface, wherein the coating is disposed to cover only the portion of the non-planar surface which is approximately aligned to face a common direction, including a common side of at least some of the granules, wherein other remaining portions of the non-planar surface are approximately aligned to face an opposite direction, wherein the coating has an energy-efficiency attribute that is different from a corresponding attribute of the non-planar surface on which the coating is disposed.
Dependencies are inferred from the claim text.