Use on RV rubber roofing, asphalt roof shingles, galvanized steel, concrete, wood polyurethane foam and bitumas built-up-roofs. Use as a reflective and protective coating. Has outstanding exterior durability and is UV resistant. Expands and contracts with roof. Resists cracking and withstands impact. It is non-polluting and non-toxic. Covers as much as 200 sq. ft. per gallon. Apply with brush or roller.