Sun Stone Coated Metal Roof Tile The basement of this product is galvalume sheet(0.4mm thickness), with colorful vermiculites heating by high temperature processed on its surface. Compared with galvanized sheet, galvalume is more durable, heat-resistant, and anti-corrosion. It can guarantee 30 years life time with bright-colored. We guarantee this product's longevity. Galvanized steel, because of its mixture of aluminum and zinc, will never rust. Because of this, it is an ideal construction material. What are the Sun stone coated Metal tile Performance Guarantees? Hail Resistance Metal tile Steel Roof Tiles achieve the highest UL 2218 rating for hail impact resistance in the United States. High Wind Resistance Metal tile Steel Roof Tiles are engineered to withstand high wind uplift forces and perform well in the â??Very High Wind Zonesâ?� (VHWZ) of coastal New Zealand. Lightweight Metal tile Steel Roof Tiles are a lightweight interlocking roof system, with uncompromising strength. Fire Safe Metal tile Steel Roof Tiles are classified as a â??Class Aâ?� Fire Rated, non combustible roofing material, in the United States. Earthquake Metal tile Steel Roof Tiles are an interlocking roof system. The tiles are individually fixed and are less likely to fall through the ceiling during an earthquake. Marine Environments Metal tile roof tiles are suitable for all marine environments and are backed by our warranty.