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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 highly breathable 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 is a non-combustible Class A1 breather membrane is designed for use on the cold side of insulation on façade wall structures, offering the highest standard of fire performance 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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