VapourTech® RWC Roof Wall Commercial

Vapour permeable roof and wall insulation

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

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 Details

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

Product Details

VapourTech® RWC Roof Wall Commercial
Nominal Thickness: 0.83 mm
Code	Dimensions
VTRWC-45	1500 mm x 30 m (45 m²)

Applications

Limitations

Product is not reflective.

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

If installed over battens in roofs, condensation can still occur on the underside of product, install drainage battens to avoid contact and separate the product from the steel roof, pull tight to allow for adequate drainage of pooled or trapped water.

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® RWC Roof Wall Commercial should not be used in direct contact with fresh LOSP or organic solvents and should be given at least 7 days for the chemicals to flash off before direct fixing. Oil-based treated timbers should be separated from this product or alternative pliable building membranes investigated and specified such as Ametalin 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® RWC Roof Wall Commercial should be separated by the incorporation of an external drainage cavity. and cladding placed on non-reactive battens to the external side of VapourTech® RWC Roof Wall Commercial. For specific timber and timber construction compatibility inquiries, kindly contact the Ametalin Technical team.

Total System R-Values

Residential Tile/Metal Roof	Winter	Summer
with VapourTech® RWC Roof Wall Commercial	R_T0.57	R_T0.74
Light Weight Cladding
fixed to battens with VapourTech® RWC Roof Wall Commercial + R2.7 fibrous batt	R_T2.92	R_T2.77
Light Weight Metal Seam Cladding
with VapourTech® RWC Roof Wall Commercial + R2.7 fibrous batts	R_T2.82	R_T2.68
Brick Veneer
with VapourTech® RWC Roof Wall Commercial + R2.7 fibrous batt	R_T2.93	R_T2.78

Specification Notes

When specifying, state the following:
Product Name: VapourTech® RWC Roof Wall Commercial

The pliable building membrane to be installed shall be VapourTech® RWC Roof Wall Commercial, very high permeance roof sarking and 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 Permeance: 2.144 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: Medium in accordance with AS/NZS 4200.1:2017

Downloads

Related Products

Ametalin CeaseFire®

FireSark®

Ametalin QuickTape™

VapourTech® RWC Roof Wall Commercial

Vapour permeable roof and wall insulation

Features and Benefits

Bushfire Attack Levels

Product Details

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