This ceramic paint is incredible. Thousands of microscopic ceramic particles in every square inch. Ceramics have the highest insulation values known. Before we painted our huge roll up doors (big enough to drive a semi through), they would radiate heat 20 feet away. They were like a blast furnace in the summer. Now you can stand right next to them and barely feel the heat. The hotter it gets the higher the insulation value. The roof coat can be applied directly over the roof sheathing without another layer needed. This paint creates an elastic membrane that expands and contracts with the structure. This is especially important for cement or stucco buildings that tend to crack as they age. Plus the paint is environmentally friendly, water based and simple to clean up. Turn down your air conditioner and go ceramic products from Advance Power Company.