... 2)Waterproof, fireproof, soundproof, 3)light weight wall board 4)Heat Insulation 5)Fast construction Description:Light weight energy-saving EPS Sandwich ... /m²- 110 kg/m²Thermal conductivity( BS 874; Part 2: 1986)0.221 W/0KFlexural Strength ( Longitudinal )4.27 ... 46db2013* light weight,waterproof,soundproof,heat insulation eps sandwich panel 2013* light weight,waterproof,soundproof,heat insulation eps ...