VapourTech® Brane® VHP TackBack®

Trade Select^™ VapourTech Brane® VHP TackBack® is used as a self-adhesive vapour permeable air and water barrier wall wrap behind all types of cladding and in all wall systems in Climate Zone 2-8.

NOTE: It is NOT recommended for this application in ABCB Climate Zone 1 and Climate Zone 2 -North of the tropic of Capricorn.

VapourTech® Brane® VHP is available in 1.35 m width rolls, and a convenient TackBack® layer for easy application to the wall system. If installed behind non-absorbent claddings such as steel, provision should be given for adequate drainage of any trapped moisture.

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 TackBack® 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 TackBack® 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 TackBack®. 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 TackBack®

The insulation to be installed shall beTrade Select^™ VapourTech Brane® VHP TackBack®, 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: 0.90

Emittance Classification: IR Non-reflective

Vapour Control Classification: Class 3 Vapour Permeable, 0.8652 µg/N·s

Air Control Classification: Air Barrier

Water Control Classification: Water Barrier

Duty: Light Wall in accordance with AS/NZS 4200.1:2017

VapourTech Brane VHP TackBack - Technical Data Sheet (PDF)