VapourTech® Brane® VHP

Trade Select™ VapourTech^® Brane^® VHP is used as a wall wrap behind most types of cladding and in wall systems in Climate Zone 2-8.

Trade Select™ VapourTech^® Brane^® VHP can be used as wall wrap in brick veneer systems; however, Sarking xR Micro-perforated is the preferred membrane for brick veneer systems outside the humid tropics.

Trade Select™ VapourTech^® Brane^® VHP is available in 1.37 m and 1.5 m width rolls, and a convenient 2.74 m width roll that halves installation time and reduces the amount of air gaps and joins in the wall system.

Product should not be used in roofing applications. 

Product is not reflective.

Product is not recommended for wall applications in ABCB Climate Zone 1. 

In direct fix cladding applications where the cladding reduces the drainage and drying capability of the product, an external drainage cavity is recommended using Ametalin Cavity Drainage Battens™ (10 mm) or ThermalCav™ Drainage Battens (20mm). Non-absorbent claddings such as steel, adequate drainage must be provided.  

VapourTech® Brane® VHP should not be used in direct contact with LOSP, organic solvent or oil based treated timbers. Separation from these components is required or alternative pliable building membranes investigated and specified such as Trade Select™ CeaseFire®. 

Blackbutt, Blackwood, Ironbark, Jarrah, Merbau, and Spotted Gum timber cladding among others, known for their high tannin content, natural faults and borer holes, have tendencies to leach and leak in conditions of very high humidity and /or prolonged water exposure. All direct to stud applications of the above treated timbers should be avoided therefore it is recommended that VapourTech® Brane® VHP should be separated by the incorporation of an external drainage cavity. and cladding placed on non-reactive battens to the external side of VapourTech® Brane® VHP. For specific timber and timber construction compatibility inquiries, kindly contact the our Technical team. 

When specifying, state the following:
Product Name: Trade Select™ VapourTech^® Brane^® VHP

The pliable building membrane to be installed shall be Trade Select™ VapourTech^® Brane^® VHP, 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: 0.9, 0.9
Emittance Classification: IR Non-Reflective, IR Non-Reflective
Vapour Control Classification: Class 4 Vapour Permeable, 12.848 ug/N.s
Water Control Classification: Water Barrier
Flammability Classification: Low (≤5)
Duty Classification: Light Wall in accordance with AS/NZS 4200.1:2017

VapourTech Brane VHP - Technical Data Sheet (PDF)