VapourFlex CW

Overview

Class 4 vapour permeable, and classified as an air barrier.

VapourFlex® CW is a flexible and lightweight wall wrap that is highly vapour permeable and yet is also highly resistant to water transfer, and assists in reducing air infiltration. Manufactured with two layers of resilient non-woven fabric on each side and a highly permeable membrane in the centre, VapourFlex® CW is perfectly suited for both commercial and residential buildings for a second layer of protection against moisture, wind and dust while minimising condensation risk.

CW does everything VPM does and adds an air barrier classification. That is the difference worth paying for on a commercial job or any build chasing an airtight envelope , reducing air infiltration is measurable, and it is what separates the two VapourFlex products.

Product advantages

• Suitable for use behind all cladding types and wall systems such as fibre cement sheets,
• weather board, timber and brick veneer construction.
• Class 4 Vapour Permeable Membrane and a Water Barrier in compliance with AS/NZS 4200.1.
• Air Barrier in compliance with AS/NZS 4200.1 to help achieve an air-tight building envelope.
• Suitable for use in Climate Zones 2-8 in both commercial and residential applications.
• Achieves low flammability results when tested to AS/NZS 1530.2.
• Suitable for bushfire-prone areas and use in construction requirements with BALs of LOW – FZ.
• Up to 90 days UV resistance and extremely durable.

Applications

VapourFlex® CW is designed for use in walls and gable applications in Australian Climate Zones 2-8, and particularly where a vapour permeable membrane is required. VapourFlex® CW is suitable behind all wall types and systems. These include all lightweight clad walls, such as fibre cement, commercial cladding, weather board and timber, where manufacturers may require the use of vapour permeable membranes, along with brick veneer walls. VapourFlex® CW also protects the building frame and internals from the elements prior to the external cladding being installed, allowing internal works to commence earlier.

VapourFlex CW specifications

Roll sizes

• 3050 mm x 30 m (91.5m2) - Product Code VFCW-91
• 1500 mm x 30 m (45m2) - Product Code VFCW-45

Construction

• Non-woven polymer fabric
• Vapour Permeable Membrane
• Non-woven polymer fabric

NCC compliance

• VapourFlex® CW complies with the National Construction Code (NCC) for pliable building membranes and sarking type materials
• and satisfies the following requirements:
• Complies with AS 4200.1 for pliable building membranes, and therefore meets the requirements of NCC 2022 Volume 1 F8D3
• Condensation Management and NCC 2022 Volume 2 ABCB Housing provisions 10.8.1.
• Non-Combustible Sarking-Type Material Exemption:
• VapourFlex® CW has a Flammability Index ≤5 and does not exceed 1 mm in thickness, and therefore may be used in accordance with
• the non-combustible sarking-type material exemption stated in NCC 2022 Volume 1 C2D10 (6)(f ) and NCC 2022 Volume 2 H3D2 (1)(f ).
• Fire Hazard Properties and Bushfire Attack Levels (BAL):

How to specify

Supplied in Perth by Aussie Plasterboard. Request a quote or ask us to check a specification.

PERTH'S FIBRE CEMENT EXPERTS | Request a free Quote from our Experts

• When specifying, state the following:
• Product Name: Reflex Insulation® VapourFlex® CW
• The pliable building membrane to be installed shall be Reflex Insulation® VapourFlex® CW and shall be installed in accordance with
• AS 4200.2. The product must have the following properties:
• Duty Classification: Light Wall or greater 4 Vapour Permeability Classification: Class 4
• UV Exposure: Up to 90 days or greater 4 Vapour Permeability: 1.1403 ug/N.s or greater
• Flammability Classification: Low (≤5) 4 Water Control Classification: Water Barrier
• Air Control Classification: Air Barrier