Surfacing media with flame retarding effects and high solar reflectance, and method of making same
First Claim
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1. A method of making solar-reflective, fire-retardant roofing materials, the method comprising:
- (a) providing a base material having an upper surface formed of bituminous material, a plurality of roofing granules being partially embedded in the upper surface of the base material; and
then(b) applying a fluid solar-reflective surface coating composition to the upper surface of the base material, wherein the fluid solar-reflective coating composition includes at least one solar-reflective pigment, such that the fluid solar-reflective surface coating composition coats the upper surface of the base material and the granules; and
then(c) depositing a fire-retardant particulate material on the fluid solar-reflective surface coating composition, the fire-retardant material being selected from the group consisting of hydrated meta silicates, alumina hydrates, antimony-containing compounds, phosphorous-containing compounds, and halogenated compounds, the deposition being performed such that the fire-retardant particulate material becomes at least partially embedded in the fluid solar-reflective coating composition; and
then(d) curing the fluid solar-reflective surface coating composition to a solid state to form a solar-reflective exterior coating disposed on the upper surface of the base material, the solar-reflective exterior coating to at least partially encapsulate the fire-retardant particulate material in the solar-reflective exterior coating.
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Abstract
A roofing material includes a fire-retardant particulate material on its upper surface. A solar-reflective surface coating encapsules the fire-retardant particulate.
81 Citations
16 Claims
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1. A method of making solar-reflective, fire-retardant roofing materials, the method comprising:
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(a) providing a base material having an upper surface formed of bituminous material, a plurality of roofing granules being partially embedded in the upper surface of the base material; and
then(b) applying a fluid solar-reflective surface coating composition to the upper surface of the base material, wherein the fluid solar-reflective coating composition includes at least one solar-reflective pigment, such that the fluid solar-reflective surface coating composition coats the upper surface of the base material and the granules; and
then(c) depositing a fire-retardant particulate material on the fluid solar-reflective surface coating composition, the fire-retardant material being selected from the group consisting of hydrated meta silicates, alumina hydrates, antimony-containing compounds, phosphorous-containing compounds, and halogenated compounds, the deposition being performed such that the fire-retardant particulate material becomes at least partially embedded in the fluid solar-reflective coating composition; and
then(d) curing the fluid solar-reflective surface coating composition to a solid state to form a solar-reflective exterior coating disposed on the upper surface of the base material, the solar-reflective exterior coating to at least partially encapsulate the fire-retardant particulate material in the solar-reflective exterior coating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification