In accordance with national standards, extruded sheet name is called extruded polystyrene foam insulation, thermal insulation, fire-retardant, compression, environmental protection and other effects are the most important features, Dalian insulation board manufacturers, the current national standard GB8624 "Building Materials combustion products, classification "provisions: B2 level is now the minimum requirement retardant XPS board oxygen index ≥26. According to "People's Republic of China Fire Act" Article 26 "building components, building materials and interior decoration, fire resistance decorative materials must comply with national standards; no national standards, must comply with the industry standard" requirement, extruded plate in the production process need to add flame retardants, Xinji insulation board manufacturers, to prevent and delay the intense burning polystyrene plates. Extruded sheet "See the fire that is burning," it shows that the body wrapped in the building of this layer "thermal coat" has become extremely dangerous. "Incendiary." Shanghai apartment fire teachers, Shenyang Dynasty Wanxin building blocks of ...... beautiful building into a black coke, countless lives were swallowed Huomo instant. And one of the causes of fires, insulation board manufacturers, because XPS board lost cause fire retardant properties wantonly spread. 1, thermal insulation properties: EPS and XPS insulation performance is gradually rising. EPS was 0.045, XPS is 0.028. Because the thickness of the wall decoration in insulation and other performance indicators to meet the situation, the thinner the better. So the same insulation effect of two kinds of practices. Pure plate prices more expensive than EPS board XPS board, if full account of technology and building height, EPS and XPS almost the same price per square meter, because about 15 yuan. Currently EPS or XPS thin plaster systems fully meet the requirements.