Color steel sandwich board is a color coated steel plate as the surface material, self-polystyrene, polyurethane, glass wool, rock wool as the core material, with hot curing glue in the continuous molding machine heating pressure composite of ultra-light building board. It has light dead weight (1/20 ~ 1/30 of the weight of concrete roof), thermal insulation (its thermal conductivity value is 0.034W/mk), and fast construction speed.
The construction period can be shortened by more than 40%), bright color (no surface decoration, color galvanized steel anticorrosion layer retention period in 15-30 years), is a collection of bearing, thermal insulation, waterproof, decoration in one of the new envelope material.