Proctor Passive Wraptite SA Self-Adhering Airtight and Vapour Permeable Membrane for Wall and Roof applications

Protor Passive Wraptite-SA consists of triple layer polyolefin textile with a proprietary acrylic moisture vaopur permeable adhesive and release liner.

It combines the best properties of a vapour permeable membrane and a self adhesive water and air barrier in one innovative self-adhering product. Use of highly vapour permeable self-adhesive membranes decreases installation times when compared to mechanically fastened membrane systems and is suitable for residential, commercial and high rise buildings.

Continuous contact of the membrane to the sheathing by even distribution of stress over the entire bonded surface allows better resistance to wind pressures and elimination of stress point concentrations.


  • No primer required on most clean substrates down to -6°C
  • Lightweight and easy to install
  • Multiple substrate compatibility
  • UV exposure: six weeks
  • Low Flammability (Flammability Index: 1)
  • Wide service temperature range, easily installed in all climates
  • Tear, rip and puncture resistant during and after construction, reducing install costs
  • Zero VOCs, and free of any chemicals on the Living Building Challenge Red List
  • NZBC compliance
  • Approved Sealant: Tremco Dymonic 100

Roll Sizes

  • 1500mm x 50.0m (75m2)


  • Exterior Gypsum
  • Sheathing
  • Aluminium (painted or mill finish)
  • OSB
  • Most rigid insulation
  • Cast-in place concrete
  • Rigid vinyl
  • Pre-painted steel, Galvanized metal and Steel
  • Precast concrete and Concrete block
  • Plywood


Property Standard Value
Thickness 0.65mm
Weight 240gsm +/- 10
Water Vapour Resistance ASTM E96 Procedure B Pass 0.243 MN s/g
Air Resistance BS ISO 5636-5:2003 Pass
Water Resistance AS/NZS 4201.4:1994 Pass 100mm water head
Flammability AS 1530.2* Pass Flammability Index 1
UV Exposure ASTM G154 eight weeks
Approved Sealant Tremco Dymonic 100