SL-16 is a sleek and rich looking, contemporary standing seam, hidden fastener panel system ideal for residential applications. These panels are formed from high tensile strength, using 26 gauge steel, which is protected with a Galvalume coating. Out state of the art Signature 200 paint system is then applied, providing years of warranted protection Energy Star Compliance, Class A UL Fire Rated, and UL 2218 Class 4 rated for impact resistance. These panel must be installed over a solid, waterproofed deck when used as a roof panel. UL 580 ratings are available, as well as UL 790, Class A for external fire, roof assembly for UL 263 for internal fire and the UL 2218 Class 4 impact rating. SL-16 carries Florida approval.