VapourTech® Brane® VHP

Vapour permeable wall insulation

Features and Benefits

Light Wall Duty
Class 4 Vapour Permeable
Water Barrier
Triple layer construction for durability
Low Flammability, suitable for all BALs in bushfire-prone areas
UV resistance - up to 30 days

Bushfire Attack Levels

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

Seek independent advice regarding the selection of sarking prior to installation in the BAL design.

BAL-Low	BAL-12.5	BAL-19	BAL-29	BAL-40	BAL-FZ
✔^★	✔^★	✔^★	✔^★	✔	✔

Legend:

✔ Suitable for use

✔^★ Premium Choice

Legend:
✔ Suitable for use	✔^★ Premium Choice

Product Videos

Product Details

Product Details Applications Limitations Total System R-Values Specification Notes Downloads

Product Details

VapourTech® Brane® VHP
Nominal Thickness: 0.38 mm
Code	Dimensions
VHP-82	2740 mm x 30 m (82.2 m²)
VHP-45	1500 mm x 30 m (45 m²)
VHP-41	1370 mm x 30 m (41.5 m²)

Applications

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

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

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.

Limitations

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 Ametalin CeaseFire®, VapourTech® RWC Roof Wall Commercial or VapourTech® Wall.

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 Ametalin Technical team.

Total System R-Values

Specification Notes

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

The pliable building membrane to be installed shall be Ametalin 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

Downloads

Related Products

VapourTech® Wall

Ametalin CeaseFire®

Light Weight Cladding	Winter	Summer
fixed to battens with VapourTech® Brane® VHP + R2.7 Fibrous Batt	R_T2.92	R_T 2.77
Brick Veneer
with VapourTech® Brane® VHP + R2.7 Fibrous Batt	R_T2.93	R_T2.78

VapourTech® Brane® VHP

Vapour permeable wall insulation

Features and Benefits

Bushfire Attack Levels

Product Videos

Product Details

Related Products

Applications

Tools

Moisture Management

Knowledge Centre

About

Contact