Roof coatings are designed for protecting and extending the useful service life of roof assemblies for new construction and more commonly, existing roof coverings such as Built-up roofing (BUR), metal, modified bitumen, single ply membranes and sprayed in place polyurethane foam. Reflective coatings can also reduce heat energy costs and improve the aesthetics of the roof.
The most common types of roof coatings are acrylic, asphalt polyurethane and silicone. Coatings can also be made with other resins or combinations of resins. These include, but are not limited to, butyl resins, fluoropolymer, Polymethyl methacrylate, polyester, silyl terminated polyether, polyuria, and styrene-acrylics.
The typical life expectancy of a properly applied coating can extend the roof life up to ten years or more depending on the product manufacturer’s warranty. Performance varies depending on type, conditions and coating film thickness. As the coating wears away, additional coating may be applied. Most coatings are renewable and sustainable.