Vapor Barrier Membrane, commonly for non-woven composite PE film. Vapor membrane is strengthen the construction of water tightness, at the same time makes the structure of water vapor flowing rapidly, protect wall structure function, avoid mold growth in inter layer, improve the air quality of bedroom.
This vapor barrier membrane laid on the insulation layer and the counter batten, waterproof membrane natural prolapse between both sides of counter battens, nail hole in high point, the rain is not easy to enter and more waterproof . It protects thermal insulation layer,it don't need to do fine stone concrete, so that it can reduce the cost of roofing.