Gaco Roof 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. Gaco Roof is available in several colors to enhance the aesthetics of any roof. Ideal 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.