Dimension: 1m x10m/roll or 1mx8m Thickness: 2mm 3mm 4mm Surface:PE membrane, S-Fine sands, Mineral grains/slates Specification:Dimension: 1m x10m/roll,1mx8mThickness: 2mm 3mm 4mmSurface: PE-PE membrane, S-Fine sands, M-Mineral grains/slatesStrong Points:1, Dry, strong, smooth and clean base. 2, Installation: Heating to melt, place the membrane correctly, fire torch, evenly heat the membrane and ...