EPS Total Gas Barrier

Product Description

Corden EPS Total Gas Barrier is a multi-layer, low-density polyethylene membrane, reinforced with a polypropylene reinforcing grid with an integral aluminium foil.

Corden EPS Total Gas Barrier is specifically designed and manufactured to perform as a methane, carbon dioxide, radon ground gas, volatile organic compound and air & moisture protection system.

Corden EPS Total Gas Barrier complies with the latest codes of practice as published by BRE, CIRIA and BSI (BS 8485:2015+A1:2019) Suitable for use as gas protection for NHBC GREEN, AMBER 1, and AMBER 2 site characterisations.

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It is recommended Corden EPS Total Gas Barrier be heat welded where possible, with welding carried out by competent personnel with suitable qualifications in accordance with best practice, and guidance contained within BS 8485:2015+A1:2019. Corden EPS Total Gas Barrier should be overlapped by at least 100mm.

If taping joints, only suitable tape must be used, ensuring application with a silicone roller to remove trapped air. Corden EPS pre-formed details or Self Adhesive Gas Membrane are available for sealing around protuberances.


A wide range of accessories are available for use with the Corden EPS Total Gas Barrier, including:

  • EPS Gas Tape
  • EPS GRM Self Adhesive Membrane
  • EPS Prime
  • EPS Top Hats and Preformed Corner Cloaks
  • EPS Protection Fleece
  • EPS Geo-Vent Void Former (25/40mm)