Made by two layers of non-woven fabrics and one layer of microporous polymeric membrane in the middle. The three layers are thermally laminated without using any chemicals such as glues.Outer layer forms functional waterproof surfaceMiddle layer breathable waterproof membraneInner layer protects from abrasion and damage, also giving additional strengthEnables fabric to allow moisture vapor to pass through and whilst remaining fully waterproofBreathable roofing underlay for use under tiles and sheeted roofs, over open rafters or on to fully boarded substratesConstructed from high tensile spun-bonded polypropylene layersHigher levels of water-resistantFull moisture vapor permeabilityBreathable underlay for tiled and slated pitched roofsEco-friendly to be completely recyclableUse: breathable roofing underlay positioned immediately above insulation layer in warm pitched roof or in cold pitched roof (ventilated or unventilated)Suitable for timber frame wall constructionWater vapor transmission: 1000 to 2500g/m2, 24 hoursResistance to water penetration: 1500 to 3000mmTearing strength: 150 NTensile strength:MD: 150N/50mmCD: 200N/50mmUV exposure: 4 monthsLow temperature flexibility: -40°CRoll size: 1.5 x 50m (75m2)Weight: 120gsm
Breathable Membrane of construction