Title Page VapourTech RWC
Vapour Permeable roof & wall insulation for use in commercial and residential roofs, facades and wall systems in ABCB Climate Zones 2-8

VapourTech® RWC Roof Wall Commerical is an Air Barrier, Water Barrier and Class 4 Vapour Permeable pliable building membrane.

Very high levels of water vapour are allowed to absorb and diffuse through the core and non-woven structure, ensuring that condensation risk is controlled, while outside liquid water cannot penetrate inwards.

With remarkably high permeance, Classified as Class 4, Vapour Permeable, VapourTech® RWC Roof Wall Commercial meets the vapour permeance requirements of the NCC 2022 in ABCB Climate Zones 4 to 8 and is suitable for use in ABCB Climate Zones 2–8.

Features and Benefits

  • Class 4 Vapour Permeable
  • Weather Barrier, advanced water, air and
    vapour control membrane
  • Four-layer construction for high strength, tear, puncture
    and UV resistance
  • Low Flammability, suitable for all BALs in bushfire-prone areas in Australia
  • Low Flammability and less than 1 mm thick, suitable for DtS Non-combustible constructions, ref C2D10(6)(f)
  • Helps reduce energy consumption and increase occupant health and comfort
  • High UV resistance - up to 90 days


VapourTech-RWC-ABCB Climate Zones

Bushfire Attack Levels

Complies with AS 3959-2018 Construction of buildings in bushfire-prone areas for use in all BALs.

BALs - 4stars

Product Details

Product Details
VapourTech® RWC Roof Wall Commercial 
Nominal Thickness: 0.83 mm
VTRWC-451500 mm x 30 m (45 m²)


Total System R-Values
Specification Notes