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ProctorWrap Rainscreen IT Offers Vapour Permeable Weather Protection

Thanks to the air cavity on the exterior facade of the building, rainscreen cladding systems are well known for excellent thermal and acoustic performance. They also have many other benefits including making old buildings look and perform like new, and lightweight construction ensuring the systems are relatively easy to install and cost-effective.

TCL Hunt not only distributes DriStud wall and roof underlays but also self-adhering vapour permeable and Rainscreen IT membranes from Proctor Australia and offers their speciality of construction membranes for mid-high rise and commercial buildings.

The ProctorWrap Rainscreen membrane is developed primarily as a vapour-permeable flexible underlay for use in open joint rain screen applications. It is a two-layer membrane consisting of a spun-bonded polyester layer with a unique functional coating that offers improved resistance against UV and high temperatures up to 120°C. ProctorWrap RS-IT comes with integrated tape and offers a combination of durability and high water holdout without compromising vapour permeance.

Key Features & Advantages

  • 120 days (4 months) UV exposure
  • High water resistance
  • Suitable for use behind in open joint cladding
  • Highly vapour permeable
  • Airtight
  • Supplied with factory applied integrated tape


ProctorWrap RS-IT is suitable for installation in vertical wall constructions behind ventilated facade with regularly spaced open joints no greater than 50mm wide accounting for no more than 30% of total surface area. ProctorWrap RS-IT should be installed with the darker black “rubbery” surface facing outwards.

ProctorWrap RS-IT must be separated from the exterior cladding by a vented cavity. This allows for the drainage and drying 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 to ensure that moisture is not left trapped between the ProctorWrap RS-IT and the external cladding. This is especially important for vapour tight or non-absorbent claddings such as metal.

View more information on DriSpace, including contact details.
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July 2020 EBOSSNOW Product News

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