Roof Breather Membrane Vapour Barrier Vapour Control Layer

In the state of containing water vapor, the water particles are very small, and according to the principle of capillary movement, they can smoothly penetrate to the other side of the capillary, so that the phenomenon of vapor transmission occurs. When the water vapor condenses and turns into water droplets, the particles become larger. Due to the effect of the surface tension of the water droplets (the water molecules “pull and compete” with each other), the water molecules cannot smoothly separate from the water droplets and penetrate to the other side, which prevents The penetration of water occurs, so that the vapor permeable membrane has the function of waterproofing.There are three main types of waterproof and breathable membranes: PP spunbonded non-woven fabric, glass fiber breathable membrane, PET breathable membrane

Breather membrane Vapour barrier for building

Product Features:

  1. It has good waterproof performance.
  2. Prevent wood mildew, improve comfort, improve the living environment and increase the durability of buildings.
  3. to prevent water from entering and prolong the durability of the insulation material.
  4. Tear resistance, wear resistance, good flexibility at low temperature.
  5. It has excellent anti-ultraviolet and anti-aging properties, and the product is durable.
  6. The product is soft, light and thin, easy to construct


  • Weight/m2: 40g、100g、200g、 400g、800g.
  • Width: 1000mm
  • Length/roll: 30m~1000m
  • Color: white


  1. Each roll will be packed into one plastic bag. Some rolls will be packed into carton without pallet. At last load into the container.
  2. Packed according to customer request

Business information:

  • Loading port: Ningbo or Shanghai Port, China
  • Payment items: TT, DP, L/C, Paypal
  • H.S. Code: 7019909000
  • Leading time: 15 days/40ft container
  • MOQ: 2 rolls
  • Samples: If A4 size piece sample, it is free; if big samples, it is not free
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