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Ningbo Shanquan Building Material Company

China Manufacturer with main products: Breathable Membrane, Housewrap Membrane, Roofing Membrane, Sloped Roof Underlay, Waterproof Roofing Felt, Breathable and Waterproof Foil,...

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roofing underlayment (waterproof breathable)

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Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe


1), Introduction of Waterproof Breathable Membrane 
  1.     Breathable Membrane is a water resistant membrane but with high vapour permeability, use as diffusion open roofing felts under pitched roof tile or vapour permeable barrier housewraps on timber frame walls
  2.     Breather membrane functions as a weather-resistant barrier, preventing rain from getting into the roof or wall assembly while allowing water vapor to pass to the exterior. 
  3.     Breather membrane may also serve as an air barrier if it is sealed carefully at seams.
  4.     Breathable Membrane have good "water resistance", good "water vapor permeability", and good "air barrier properties".
2), Technical data of Breathabe Membrane 
  1. Products range: 80g,90g,100g,120g,140g,160g/m2.
  2. Roll size: 1.5m x 50m
  3. Water resistant : Class W1
  4. SD-value: 0.02m
  5. Vapor permeability: >2250g/m2/24h
  6. UV resistant: >3month
  7. Test to EN13859-1: Pass
3), Advantage of Breathable Membrane:
  1. CE mark available
  2. High quality with competitive price
  3. Excellent tensile and nail tear strength
  4. Good flexibility and ductility
  5. Light weight and thin, slip-resistant surface
  6. Simple handling and easy to use 
  7. Anti-ageing: both heat and UV stable
4), Performance of Breathable Membrane:  
     Resist liquid water passing through, but allow water vapour to pass through.
5), Structure of Breathable Membrane:
     All SHANQUAN vapour permeable membranes are 3 layers thermal laminated:
     PP non-woven fabric + PE fuctional film + PP non-woven fabric
     Spun-bonded polypropylene non-woven fabric layers for protection and reinforcement.
     Micro-porous polyethylene film is the functional layer which is water-resistant but allow water vapour to pass through.
6), Applications of Breathable Membrane :
  1. BREAWARF Breathable roofing felts / roofing membrane use for the pitched roof tile underlay.
  2. SHANQUAN Breathable housewrap use for the wood frame walls house shell

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    After paying a deposit, if the purchasing order is not completed because of unsatisfied ECVV services, ECVV will refund your deposit.

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