Breathable and Waterproof Membrane for Pitched Roof Felt or Housewraps Waterproof: Class W1 SD-value: 0.02m Vapor permeable:
1), Introduction of Waterproof Breathable Membrane
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
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.
Breather membrane may also serve as an air barrier if it is sealed carefully at seams.
Breathable Membrane have good "water resistance", good "water vapor permeability", and good "air barrier properties".
2), Technical data of Breathabe Membrane
Products range: 80g,90g,100g,120g,140g,160g/m2.
Roll size: 1.5m x 50m
Water resistant : Class W1
Vapor permeability: >2250g/m2/24h
UV resistant: >3month
Test to EN13859-1: Pass
3), Advantage of Breathable Membrane:
CE mark available
High quality with competitive price
Excellent tensile and nail tear strength
Good flexibility and ductility
Light weight and thin, slip-resistant surface
Simple handling and easy to use
Anti-ageing: both heat and UV stable
4), 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 polypropylenenon-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.
[Attentions for Construction]
·Construction shall not be carried out in rain, snow or over 5 degree wind weather;
·There shall be sufficient safety protective facilities in construction site, place firefighting devices according to stipulations.
Installation Sketch point
Clean the substrate using broom or high pressure dusty cleaner.
Heat the membrane bottom using a high temperature flame gun.
Push forward while the primer and membrane oil melted
Use a roller to push hard the membrane surface to ensure it stick firmly
Aplication of water prood membrane:
If you have any request ,please contact us as following info: