Enviroseal ProctorWrap Residential Wall


Enviroseal™ ProctorWrap™ Residential Wall (RW) is a light duty vapour permeable wall wrap designed for use in residential timber and steel frame wall construction.

Product Description

Enviroseal™ ProctorWrap™ RW is a triple layer polyolefin non-woven textile. The high water vapour permeability of Enviroseal™ ProctorWrap™ RW allows for the controlled escape of vapour from within the building whilst restricting the ingress of liquid moisture, thus helping to protect the building fabric and insulation from condensation and related problems such as mould, timber rot, corrosion and loss of thermal resistance.


Enviroseal™ ProctorWrap™ RW is a highly vapour permeable, tough, light duty wall wrap for use as a sarking in timber and steel frame wall construction. It is tear resistant making it easy to handle during installation.

In combination with taping overlaps, Enviroseal™  ProctorWrap™ RW can help form an air tight wrap for the building, reducing the loss of heated air or cooled air from the building thus improving the energy efficiency of the building envelope.

It is good practice for Enviroseal™ ProctorWrap™ RW to be separated from the exterior cladding by a cavity to allow for the drainage of any moisture that has penetrated the exterior cladding or condensation that may form on the rear face of the cladding.

Adequate provision for the drainage, absorption or diffusion of moisture is required exterior to the membrane to ensure that moisture is not left trapped between the Enviroseal™ ProctorWrap™ RW and the external cladding. This is especially important for vapour tight or non-absorbent claddings such as steel.

Care should be taken when installing insulation so that this does not restrict drainage within the cavity.


  • High water resistance
  • Non-perforated
  • Highly vapour permeable
  • Air tight
  • Light weight and easy to handle
  • Quiet when exposed to wind
  • Soft facings reduce flapping noise



Enviroseal ProctorWrap Residential Wall Print/PDF


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Enviroseal ProctorWrap RW
is available exclusively from
CSR Bradford 1300 850 305


Enviroseal ProctorWrap Residential Wall



Technical data

Criteria Reference Result
  Duty Classification

  Table 1 AS/NZS 4200.1:1994


  Vapour Permeability   ASTM E96

  >4.5 μg/N.s

  Vapour Resistance   ASTM E96


  Vapour Barrier Classification   ASTM E96


  Emittance   AS/NZS 4201.5


  Water Barrier

  AS/NZS 4201.4


  Absorbency   AS/NZS 4201.6


  Resistance to Dry 
  AS/NZ 4201.1


  Resistance to Wet 

  AS/NZ 4201.2



  AS/NZ 4201.3


  Tensile Strength

  • Machine Direction (kN/m)
  • Lateral Direction (kN/m)
  AS 1301.448

  4.3 kN/m
  2.4 kN/m

  Edge Tear Resistance

  •  Machine Direction (N)
  • Lateral Direction (N)

  TAPPI T470


  220 N 
  126 N

  Burst Strength

     >200 N

  Flammability Index

  AS/NZ 1530 Part 2   ≤ 5

  Allowable UV exposure prior 
  to completion of cladding

    4 weeks

*Bradford Enviroseal RW is classified as light duty in accordance with the value specified for bursting strength and therefore does not meet the deemed-to-satify provisions for use in roof applications.


Standard Sizes and Packaging
Width Length  m2 per roll  Weight per roll
  1500mm    50m 75m2 7.9kg
  2750mm    25m 68.75m2 8.5kg


Enviroseal™ ProctorWrap™ Tape Range

When required to secure, join or seal Enviroseal™ ProctorWrap™ RW it is recommended to use the following
Enviroseal ProctorWrap accessory products in each of these applications.

Application  Product  Width Length
Sealing joints 

 Enviroseal ProctorWrap HighTack Tape

 60mm  25m
Sealing around penetrations   ProctorWrap™ SLS Flexi  60mm


Sample specification


Sarking should be CSR Bradford Enviroseal™ ProctorWrap™ RW vapour permeable membrane, tested to AS/NZS 4200,1:1994 standards, secured directly to the outside of the wall frame at maximum 300mm spacing and in accordance with product user guide. Breather foil does not comply with this specification.

Summary Specification:

  • Vapour permeability: No less than 4.0μg/N.s 
    (vapour resistance of no greater than 0.25MNs/g)
  • Duty classification: Light
  • Water Barrier Classification: High
  • Emmitance: Non-reflective
  • Flammability Index: Low











PH: 1800 174 900 



Proctor Group Australia


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