Bradford Enviroseal™ ProctorWrap™ CW is a triple layer polyolefin non-woven textile weather barrier that is calendared together. This product is also available with pre-applied integrated tape release liners (CW-IT). This product meets the requirements of the AS/NZS 4200.1 and is suitable for use in Australian residential and commercial applications.
Bradford Enviroseal ProctorWrap CW is suitable behind residential and commercial brick veneer and lightweight clad walls in warm to cold climate zones where condensation control may be required. Bradford Enviroseal ProctorWrap CW is recommended where vapour pressure is higher inside the building than outside. Where higher insulation R-value are used in construction it is recommended that vapour permeable products can be used to minimise the risk of condensation related damage. This product is suitable for use in BAL regions 12.5 to FZ in accordance with AS 3959.
|Duty Classification||AS/NZS 4200.1:2017||Light Wall|
|Vapour Classification||ASTM E96||Class 4 Vapour Permeable |
> 1.1403 μg/N.s
|Water Control Classification||AS/NZS 4201.4||Water Barrier|
|Electrical Conductivity||AS/NZS 3100||Non-conductive|
|Resistance to Dry De-Lamination||AS/NZ 4201.1||Pass|
|Resistance to Wet De-Lamination||AS/NZ 4201.2||Pass|
|Shrinkage||AS/NZ 4201.3||< 0.5%|
|Nominal Thickness||EN1849-2||< 1.0mm|
| Edge Tear Resistance||TAPPI T470||>90 N |
|Burst Strength||>200 N|
|Flammability Index||AS/NZ 1530 Part 2||≤ 5|
|Allowable UV exposure prior to |
completion of cladding
Sarking should be Enviroseal ProctorWrap CW / CW-IT vapour permeable membrane, tested to AS/NZS 4200.1:2017 standards, secured directly to the outside of the wall frame at maximum 300mm spacing and in accordance with AS4200.1:2017 and the product user guide. Breather foil does not comply with this specification.