CoolCoat™ is the first EPDM insulation roof coating, lab proven to reduce heat flux transfer from the roof of your RV to the interior of your RV by up to 29%. CoolCoat™ contains MicroCells™, nano-sized ceramic spheres that are vacuum formed eliminating all gas inside the microsphere. Vacuum technology, used for years in Thermos® containers to keep liquids hot or cold for hours, substantially reduces heat flux transfer from the hot side of your RV roof to the cool side of your RV ceiling.Apply a minimum of 2 coats at a rate of 1 gallon per 125 sq. ft. (i.e., 8' X 30' roof takes 4 gallons).