breathable membrane / waterproof barrier / air barrier / waterproof and vapor permeable roof foil / breathable housewrap felt
Breathable Membrane is a water-resistant material which will allow water vapour to pass through when there is a difference in humidity on opposite sides of it.
Breathable membranes are used on the outside of frame walls under the exterior finish material. They have three functions to perform:
to shed moisture and restrict any rain water which penetrates past the exterior finish from reaching the wood wall,to perform as a breather material allowing any moisture within the wall cavity to escape by diffusion through the membrane to the exterior, andto act as a wind barrier to restrict movement of air through the wall.To qualify for the above functions the breather membrane must have good "water resistance", good "water vapour permeability", and good "air barrier properties".
Breathabe Membrane Specification
Weight: 90, 100, 115, 120, 135, 140, 160 and so on. Width: 1.5M Length: 50M or jumbo rollKey Features of Breathable Membrane:
CE certificated, high quality with competitive priceWaterproof & vapour permeableHigh breathability (2250g/m2/24h)3-layer laminate (PP+PE+PP)Excellent tensile and nail tear strengthUV stable (90days)Good flexibility and ductilityLight weight and thin, slip-resistant surfaceSimple handling and easy to useEnergy savingFor both wall and roof applicationsLong term durabilityTotally recyclableUse as roofing underlayment or housewrapTechnical data | Testing Standard | Unit | Specifications | |||||
M90 | M100 | M120 | M140 | MF140 | MF160 | |||
Weight per unit area | EN1849 | G/M2 | 90±10% | 100±10% | 120±10% | 140±10% | 140±10% | 160±10% |
Width | EN1848 | M | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
Resistance to Water penetration | EN1928-2000 | W1 | W1 | W1 | W1 | W1 | W1 | |
Water vapour transmission | EN1931 | G/M2.24h | 2250 | 2250 | 2250 | 2250 | 2250 | 2250 |
Tensile strength(CD) | EN12311-1 | N/50MM | 75±15% | 100±15% | 120±15% | 150±15% | 150±15% | 170±15% |
Tensile strength(MD) | EN12311-1 | N/50MM | 115±15% | 150±15% | 180±15% | 200±15% | 200±15% | 230±15% |
Nail tearing strength(CD) | EN12310-1 | N | 45±15% | 60±15% | 80±15% | 90±15% | 80±15% | 90±15% |
Nail tearing strength(MD) | EN12310-1 | N | 55±15% | 70±15% | 90±15% | 100±15% | 90±15% | 100±15% |
Reaction to fire | EN13501-1:2002 EN11925-2 | E | E | |||||
UV resistance | EN13859-1 | Month | 3 | 3 | 3 | 3 | 3 | 3 |
Properties alternation after artificial aging | ||||||||
Tensile strength MD/CD | En13859-1 | % | -30%/-30% | -30%/-30% | -30%/-30% | -30%/-30% | -30%/-30% | -30%/-30% |
penetration | EN13859-1 | W1 | W1 | W1 | W1 | W1 | W1 | |
breathable membrane / waterproof barrier / weather barrier (water resistant / vapor permeable / roof foil)
