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EXOPERM DURO A1 – Class A1 Breather Membrane

Designed to meet the highest levels of fire performance, EXOPERM DURO A1 is a non-combustible breather membrane. With an A1 Reaction to Fire classification this external membrane is suitable for installation on the façade, in high-rise and high-risk buildings.

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Why Partel EXOPERM™ DURO A1?

  • Reaction to Fire classification A1
  • Compliant with UK Building Regulations Approved Document B
  • Advanced glass fibre fabric for enhanced structural stability
  • Suitable for high-rise and high-risk buildings
  • Highly vapour open with an Sd value of 0.03 m
  • Class W2 resistance to water penetration
  • Low emissivity reflective surface boosts thermal performance
  • High UV resistance
  • Weather tight
  • Independently tested to EN 13501-1 for compliance

Application

EXOPERM DURO A1 non-combustible external breather membrane is designed for use on the cold side of insulation on façade wall structures, offering the highest standard of fire-safety and protection for tall buildings (higher than 11 meters).

Suitable for:

  • Facades with closed joints
  • 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

Technical Data

WEIGHT EN 13859-2 210 g/m² 
REACTION TO FIRE EN-13501-1 A1
SD-VALUE M EN-13859-2 0.03 M
WATER RESISTANCE EN 1928 W2
TENSILE STRENGTH MD / CD EN 13859-2 350 N / 420 N ± 75
NAIL TEAR RESISTANCE MD / CD EN 13859-2 3500 N/1800 N/50mm

1.5m X 50m=75m2 (59-1/16” X 164’-1/2” = 807 SF)

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