... -25 years.10. Light in weight, Heat insulation, Waterproof, Environmental.11. Use application: Various roofs and walls referring to the large size ... 5). Various purification room. Air conditioning room, etc3. Advantages1. Light weight, 10 kg ~ 14 kg or so/square meters, which is ... , bending compressive, general building can not beam. Sandwich panel manufacturer ,for roof and wall,EPS