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EXOPERM DURO Fuse 300 Breather Membrane
EXOPERM DURO Fuse 300 Breather Membrane - Image 2
EXOPERM DURO Fuse 300 Breather Membrane - Image 3

EXOPERM DURO Fuse 300 Breather Membrane

High strength  300gsm breather membrane for façade and roof applications. EXOPERM DURO 300 Fuse provides W1 water resistance, high vapour permeability and durable weather protection and a B rating in Fire Testing.

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Why Partel EXOPERM™ DURO 300 Fuse?

  • B-s1, d0 Reaction to Fire classification
  • Triple layer fused construction for exceptional strength and dimensional stability
  • Highly vapour open with an Sd value of 0.12 m
  • Class W1 resistance to water penetration before and after ageing
  • High tensile strength for demanding façade and roof applications
  • High tear and nail tear resistance for exposed site conditions
  • Air permeable structure allowing moisture to escape from the building envelope
  • UV resistant for temporary exposure during construction
  • Temperature resistant from −40 °C to +80 °C
  • Suitable for walls and roofs with temporary exposure
  • Weather tight and wind resistant performanceIndependently tested to EN standards for reliable durability
  • Improves long term energy efficiency and moisture control

Application

EXOPERM DURO 300 Fuse is a high strength external breather membrane designed for installation on the cold side of insulation in façade wall and roof constructions.

Suitable for:

  • Ventilated façade systems
  • Closed joint cladding systems
  • Pitched roof applications beneath battens
  • External wall sheathing in exposed locations
  • Timber frame construction
  • Steel frame construction
  • Modular and offsite construction
  • Commercial and residential buildings
  • New build and retrofit projects
  • Projects requiring extended exposure before cladding installation

Triple Layer Fuse Technology

EXOPERM DURO 300 Fuse is a breathable triple layer monolithic membrane designed to provide long term protection of the building envelope in demanding environments.

The fused multilayer construction provides enhanced performance:

  • Transports vapour to the outside
  • Maintains excellent waterproofing performance
  • Creates a continuous wind tight and weather resistant layer
  • Protects insulation from wind washing
  • Maintains durability during prolonged exposure
  • Provides high resistance to tearing and mechanical damage

Unlike standard membranes, the reinforced fused structure provides improved dimensional stability and strength, making it suitable for façades, roofs, modular construction and retrofit projects where the membrane may remain exposed before final cladding is installed.

Technical Data

WEIGHT EN 13859-2 300 g/m²
REACTION TO FIRE EN 13501-1 B-s1, d0
SD-VALUE M EN 13859-2 0.10 m
WATER RESISTANCE EN 1928 W1
TENSILE STRENGTH MD / CD EN 12311-1 340 / 240 N / 5 cm (before ageing)
320 / 220 N / 5 cm (after ageing)
NAIL TEAR STRENGTH MD / CD EN 12310-1 160 / 180 N

1.5M × 30M = 45M² | 4’ 11 1/16” × 98’ 5 1/8” = 485 SF

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