... 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, ... and cold area. Technical Specification:Waiting for your coming no matter when !Choose us is your right decision! sbs waterproof membrane factory