Radbar® 500 µm Amber 2 Gas Barrier

Radbar® 500 µm Amber 2 Gas Barrier is a very effective gas barrier and protects buildings and occupiers from the ingress of gas and moisture. The Building Regulations (E&W) require that proper precautions be taken to prevent danger to health when building on gas contaminated land. When installed in accordance with the BRE report 414 'Protective measures for housing on gas contaminated land', Radbar is an effective solution to the problem and can be laid with confidence. Its distinctive orange colour and printed traceability code on the film ensures that material can easily be identified. Typical areas where the membrane may be used are coalfields, contaminated industrial sites, landfill and brownfield sites.


  • Prevents the ingress of methane, CO2 and radon gas.
  • High quality very robust copolymer, mono layer membrane.
  • Also performs as a damp proof membrane and is certified by the BBA.
  • Supplied in 2 and 4 m widths, making it easy to install.
  • Complies with NHBC recommendations and is suitable as an Amber 2 gas barrier.

General information

Uniclass 2015

Pr_25_57_65_60 Plastics sheetsPrimary


D21/350 Gas-retardant membrane

D21/38 Gas-retardant membrane

F30/360 Gas resistant damp proof courses/ cavity trays

F30/54 Gas resistant dpcs/ cavity trays

J40/120 Loose laid plastics or rubber sheet damp proofing

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Specification data - Plastics sheets

Product Reference

Radbar® 500 µm Amber 2 Gas Barrier

Standard product features


500 µm.

Product Options

Permeability and technical performance:

Consult manufacturer's literature for details.

Third party certifications
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