... , 1.5mm, 2mm 2)colour: Gray, green, blue 3)length: 20m 4)width: 2.05m Polyvinyl Chloride (PVC) membrane wateproof membrane is ... other agent.1)thickness: 1.2mm, 1.5mm, 2mm 2)colour: Gray, green, blue 3)length: 20m 4)width: 2.05m ... PVC membrane can be used for waterproofing on the steel roof, ...