Class A2 Breather Membrane Why Partel EXOPERM DURO A2? EXOPERM DURO A2 is a limited combustible, diffusion permeable monolithic breather membrane for high fire protection of the building envelope. It has a Reaction to Fire classification of A2-s1, d0. A2-s1,d0 Reaction to Fire classification Compliant with UK Building Regulations Approved Document B Advanced glass fibre fabric for enhanced structural stability Ideal for high-rise and high-risk buildings Highly vapour open with an Sd value of 0.09 m Class W2 resistance to water penetration Airtight with an air permeability value of 0,006 m³/m², h, Pa High Permanent UV resistance without cladding, and with 50% and 50mm joints Weather tight Improves energy efficiency of the building Independently tested to EN 13501-1 for compliance Technical Data WEIGHT EN 13859-2 225 g/m² REACTION TO FIRE EN 13501-1 A2-s1,d0 Sd VALUE EN 13859-2 0.09M WATER RESISTANCE EN 1928 W2 TENSILE STRENGTH MD / CD EN 13859-2 290 / 390 N ±75 NAIL TEAR RESISTANCE MD / CD EN 13859-2 4200 / 3100 N / 50mm Application EXOPERM DURO A2 is an external breather membrane of limited combustibility designed for use on the cold side of insulation on façade wall and roof applications, offering the highest standard of fire-safety and protection for tall buildings (higher than 11 meters). Suitable for: Facades with open or closed joints Roof applications High-rise, high-risk and public buildings (schools, offices, commercial centres, hospitals, etc.) Commercial and residential developments Timber and steel framed constructions Offsite construction New builds and retrofits Monolithic TPU Technology EXOPERM DURO A2 is a limited combustible wind barrier and roof underlay with a monolithic functional layer.The monolithic functional layer provides enhanced protection for the building envelope: transports vapour to outside is vapour open whilst having excellent waterproofing properties creates a complete wind tight, waterproof membrane that actively expels out any water/humidity unlike most micro-porous membranes that rely on small pores (which have the tendency to block) Dimensions 1.5m X 50m=75m2 (59-1/16” X 164’-1/2” = 807 SF) Documents EXOPERM MONO DURO A2 Data Sheet EXOPERM MONO DURO A2 DoP
