Product Name: Three Layer Breathable Roofing Non Woven Membrane Usage: Outdoor, Indoor Color: Grey Certification: CE Function: Anti-static, Fireproof, Heat Insulation, Sound-Absorbing, Waterproof Surface Treatment: Film Coated Ceiling Tile Type: PE Thickness: 1.2mm Material: PP Ceiling Tile Shape: Roll Type: Roofing and Waterproofing Trademark: zend Transport Package: in Rolls Shrink Wrapped Load on Container Origin: China HS Code: 560313 Product Description Air-permeable roofing membrane is a synthetic roof underlay for use under pitched roof claddings. It reduces drafts and assists in moisture management.Air-permeable roofing membranea functional membrane which is laid on the thermal insulation layer. It is applied to the composite outer wall or sloping roof of the wall curtain, profiled steel sheet, steel (wood) structure, masonry and so on.Material: Nonwoven+ Nonwoven Air-permeable film+ Nonwoven.Features: Excellent performance at water resistance.Light and thin, antiskid with good low temperature flexibility, suitable for construction in different condition.Improve water-tightness of building, protect the construction from the invasion of wind and rain, protecting the structural materials and equipment inside roof and wall.High tensile strength and elongation rate, highly flexibility at low temperature.Used for roof construction for sloping roof of the wall curtain, rofiled steel sheet, steel (wood) structure, masonry and so on.Surface mass density100g/m² (Upper black + lower grey)Roll size1.5m*50m or customized 3.2m*50m or customizedVapor permeability≥1000 g/m²/24hSd value0.02 m (-0.005/+0.015)Water tightnessclass W1Tensile strength MD/CD150/100N (+/-10%)Tearing strength MD/CD55/50 N (+/-10%)Resistance to UV rays3 monthsReaction to fireClass ELoading quantity20'GP-----800rolls40'GP-----2000rolls40'HC-----2200rollsProduction CodeAir-permeable roofing membraneRoll dimensions50m x 2.7m50m x 1.5m50m x 1mWeight (g/mr)135135135Tension MD190N190N190NTension CD120N120N120NElongation MD80N80N80NElongation CD70N70N70N