VapourTech® Wall

VapourTech® Wall is used as a wall wrap behind fibre cement and timber cladding in most Australian climates.

NOTE: For ABCB Climate Zone 1 and north of The Tropic of Capricorn in Climate Zone 2, substitute VapourTech® Wall with a Class 1 or Class 2 Vapour Barrier such as SilverSark® HVB or SilverSark® xR.

VapourTech® Wall can be used as wall wrap in brick veneer systems. Where reflective cavities are desired, SilverWrap® xRS Micro-perforated is the preferred membrane for brick veneer systems outside of the humid tropics.

If installed behind non-absorbent claddings such as steel, provision should be given for adequate drainage of any trapped moisture.

When specifying, state the following:
Product Name: Ametalin VapourTech^® Wall

The pliable building membrane to be installed shall be Ametalin VapourTech^® Wall, very high permeance wall wrap and shall be installed in accordance with AS 4200.2: 2017 Pliable Building Membranes and Underlays, Part 2: Installation.

Emittance Value: 0.58, 0.56
Emittance Classification: IR Non-Reflective, IR Non-Reflective
Vapour Permeance: 3.7640 ug/N.s
Vapour Control Classification: Class 4 Vapour Permeable
Water Control Classification: Water Barrier
Air Control Classification: Air Barrier
Flammability Classification: Low (≤5)
Duty Classification: Light Wall in accordance with AS/NZS 4200.1:2017

VapourTech Wall - Technical Data Sheet (PDF)