The fire hazard two years ago in CCTV raised public’s attention for outer wall insulating material. The
Nowadays, EPS, XPS and PU foams are the main materials that are applied as insulating material in buildings. In fact, there all belong to organic materials, which have advantages in their light weight and good insulating property but also with very serious disadvantage namely easy to get aging, easy to burn and will release toxic fogs while burned. These materials are forbidden in many European countries, but are widely used in