1. GALVALUME STEEL BASE
No Rusted
Coating composition is 55% aluminum in weight ratio (80% surface volume ratio), 43.4% zinc, and 1.6% silicon. All San-gobuild® roof products are manufactured from a-zinc steel which has been shown in tests to last 6-9 times longer than ordinary galvanized steel roofing products. This is achieved by protecting the steel core with zinc, which is itself protected by an aluminum barrier. As a pioneer of using Alu-zinc steel, San-gobuild® has unrivaled experience in long-lasting steel roof tile manufacture.

2. STONE CHIPS
No Color Fading
All San-gobuild® roof tiles are coated with natural stone chips, volcanically formed, and taken from quarries in French. These coatings add natural beauty to the roof and a hard layer of protection from the weather. Refuse cheap dyed sand, Sangobuild uses French CL high-temperature sintered colored stone granules. 800ºC sintered makes the color adhere well to the basalt, making the colors long last and don't fade even after 30 years of UV irradiation.

3. Pour Glue
No Sand Fall off
All San-gobuild® roof tiles use high-quality acrylic resin glue produced by a professional glue factory, which is more viscous, and the colored sand sticks to it more evenly, and will not become piled up. And the technology for traditional spray glue will cause the granules to drop out and uneven color, we improve the technology to pour glue which could avoid the problem very well. Choose Sangobuild, you don't need to worry about the granules drop out.