Insulation materials used in fiberglass sandwich panels cotton-based, with good thermal insulation effect. For external wall insulation board Handan activity panel building, effectively prevent the wall of the "cold bridge" phenomenon movable plate housing construction, to achieve a better insulation effect. R15 insulation around 100mm thick cotton thermal resistance can be equivalent to 1m thick brick wall. Color steel Features: quickness. All dry-construction, without environmental impact season. A 300 square meters around the building, only five workers 30 days to be completed from the foundation to the renovation of the entire process. Color can be 100% recycled material, truly green pollution. All use energy efficient walls, insulation, heat insulation, sound insulation, and can be up to 50% energy saving standards.