GacoRoof 100% Silicone Roof Coating creates a seamless membrane to seal and repair existing roofs and permanently protect against leaks, permanent ponding water, and the damaging effects of severe weather. 1 to 12 Hr. cure time, dry to the touch. Bonds to asphalt, composite, concrete, fiberglass, metal, and most existing coatings on flat or sloped roofs. UV resistant. for use on flat and sloped roofs including, but not limited to, large and small buildings, homes, garages and patio covers, sheds and barns, mobile homes, RVs and more.