ROSER, Roofing SystemThe Reliable Partner of Roofing Solutions. Roser is one of leading manufacturer of lightweight Stone Coated Steel Roof. With Quality as our top priority, ROSER stands out in the world. Mediocrity is not a term that ROSER understands. We are ISO9001 certified, UL classified, KS (Korea Standard) mark acquired company, and one of the leading manufacturers of lightweight stone-coated steel roofing tiles in the world today. Our Roofing products features great coating layers (Galvalume steel base) of protection and proven to resist all kind of extreme weathers. Also, our tiles are extremely lightweight yet incredibly durable. Our tiles weight only about 1 / 6 the weight of clay or concrete tiles, therefore you may not need additional supporting structures. We designed and produced our tiles to be install in an inter-locking system that can provide maximum protection to your home, such as extremely hot and cold weather, strong wind, hail, and other kinds of sever weather conditions. We are confident that our product's excellent quality and good price can meet your high expectation.