Thickness :1.5 mm Water resistance : waterproof (Moisture can not penetrate closed cell membrane) water absorption : 0.003 lbs/cubic feet Density :180kg/mcube Sq Ft per Roll : 100 Sq. Ft. Fire resistance : UL 94 HFI,F,A,R,25.83 IIC Rating : 78db STC Rating ：73db (condominium approved)
