Our Smart Span® panel is painted with a siliconized polyester paint system that carries a 40-year limited paint warranty. Below the paint is an 80,000 minimum psi, ASTM A 792 galvalume coated steel which carries a 20-year limited warranty. Smart Span® also carries a UL® 2218/Class4 impact rating, which means Smart Span® can stand up to harsh weather conditions. Our UL® certification is R21507. Smart Span® is available is 16 colors of 26 gauge. Smart Span® is also available is coated galvalume, which is coated with a tough acrylic coating that makes installation easier and safer. The 1¼” rib height makes it tough for water to find it way into your building, plus Smart Span® can span greater distances.