Insulation materials insulation and fiberglass sandwich panels used in cotton-based, with good thermal insulation effect. For external wall insulation board Henan rock wool insulation board, effectively prevent the wall of the "cold bridge" phenomenon, to achieve a better insulation effect. R15 insulation around 100mm thick cotton thermal resistance can be equivalent to 1m thick brick wall. Sound insulation sound insulation is an important indicator to assess residential, Color + light steel system installed windows are made of hollow glass, sound insulation, sound insulation up to 40 decibels; Changzhi from the metal frame wall, insulation materials consisting of plasterboard Rock wool insulation board, which sound insulation up to 60 decibels. Health of Fire: color composite sandwich panels and insulation materials surface material non-combustible material Handan rock wool insulation panels, fully able to meet fire code requirements. Durability: Various studies show that more than 40 years and is widely used abroad confirmed: color steel shelf with a special coating in 10 to 15 years, every 10 years after spraying anti-corrosion coatings, lumber life of up to 35 years.