high quality econimocal ASTM roofing synthetic underlayment breathable membrane

Thanks to the prominent waterproof performance, "KangDa" breathable membrane can wrap building tightly, protect the building from corrosion of water vapour and rain, guarantee good insulation performance and well durability of building enable the building to be more energy conservation and environmental protection.

"Breathable membranes for walls tend to be of a generally lower specification than those used within roofs due to the nature of the application. Normally a roof breather would also be suitable as a high specification wall breather, but a wall breather would almost certainly not be suitable for use in a roof.

Permeability of "KangDa" breathable membrane: "KangDa" breathable membrane paves outside of the insulation system, enable the water vapour inside the insulation system to exhaust, solve the condensation problem, protect the insulation system.

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