synthetic roofing felt manufacturer ASTM standard waterproof membrane use under shingles,tile,metal or slate

     Breathable membrane is a 3 layer structure, both side of non-woven fabric is water resistant, but breathable, the middle layer is the functional breathable film; it is 100% waterproof, and 1000-2000g/24h.m2 moisture permeability.

KangDa Roofing Underlays   

        Breathable membranes are very popular and are increasingly used on a wide range of projects. Their adaptable, multi-purpose use is seen by specifiers, merchants and installers as the optimum solution to underslating requirements.

KangDa vapour barrier roof membrane

         The trouble with exterior house paint or building felts/papers is that degrades over time, allowing water to ingress into your home. So every few years the whole process has to be repeated to protect your property.

KangDa Breawarf Diffiusion Foils (C120)  

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