Vapour Permeable Pitched Roof Felt Membrane Underlays
|Min. Order (Square Meters)||FOB Price|
|1,000+||US $0.22-0.56 / Square Meter|
It is constructed from high tensile spun-bonded polypropylene layers, around microporous polypropylene film. The outer layer forms a functional waterproof surface; The middle layer is the breathable waterproof membrance and the inner layer protects the membrane from abrasion and damage, also giving additional strength. This enable the fabric to allow moisture vapour to pass through, while remaining fully waterproof. It has good performance on water proofing, vapour permeable and heat insulation, and are widely used in construction house wrap and roofing industry.
1/, Weight/m2: 80-400g.
2/, Roll size: 1x50m/roll or 1.5x50m/roll.
3/, Hydrostatic head (pa): >2500.
4/, Tensile strength(N): 105-350(CD), 65-250(MD).
5/, Elongation(N): 68-150(CD), 72-150(MD).
6/, Water-vapour permeability: 0-2500g/m2.
7/, Various colors on the upper surfrace, printing logo, etc all could be made as requirement.