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NHBC Amber 1
NHBC Amber 2
BS8485
Gas Type
Radon
Methane & CO2
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Methane / CO2 System

Methane / CO2 System

In 2015 the British Standard for Good Practice on Gas Membrane Testing and Verification of Protection Systems for Buildings against Hazardous Ground Gases was updated, BS 8485: 2015 supersedes all previous guidance (refer to verification page). BS 8485:2015 operating alongside the CIRIA 735 code of practice states Independent Gas Membrane Testing and Verification Programs are as important as the design and installation process.

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Radbar Double Sided Jointing Tape (50mm x 10m)

The RADBAR multipurpose Butyl tape is a double sided tape used for jointing membranes, detailing ancillaries such as pipe penetrations and D...
  • Roll Size: 50mm x 10m
  • Very low moisture vapor transmission rate
  • Outstanding service life (lifetime of building)
  • Excellent elongation properties
£9.96Ex VAT£11.95Inc VAT
Top Hat

Top Hat pre-forms should be used to provide an effective seal around service pipe penetrations. They are available in a range of sizes such ...
  • Jubilee clip included
  • Use GasTite Sealant around service pipes  within TopHat for complete protection
£10.40Ex VAT£12.48Inc VAT
Radbar Amber 1 Orange Membrane 25x2m

Radbar Amber 1 is suitable for preventing the ingress of radon, methane and CO2 (low risk). This membrane has been tested by a leading ...
  • Suitable for preventing the ingress of radon and moisture
  • Complies with NHBC Amber 1
  • Produced within the ISO9001 guidelines
  • 2000 Gauge / 500 mu
£91.63Ex VAT£109.96Inc VAT
Free Delivery
Radbar Amber 2 Foil Membrane 50x2m

Radbar Amber 2 Foil Barrier protects buildings, properties and occupants from the ingress of radon, carbon dioxide and methane gases (medium...
  • Protects from the ingress of radon, carbon dioxide and methane gases
  • Independently tested to ISO 15105-1
  • Complies fully to BS 8485:2015
  • Suitable for use on NHBC Amber 2 sites
£374.99Ex VAT£449.99Inc VAT
Free Delivery
Radbar Single Sided Foil Overlap Tape (75mm x 50m)

Radbar Single Sided Foil Overlap Tape is an adhesive jointing tape designed for sealing over the face of vapour control layer membrane joint...
  • Roll Size: 75mm x 50m
  • This must be used alongside Radbar Double Sided Tape to fully bond membranes.
  • High quality bonding tape with proven performance
  • Suitable for vapour control applications
  • Very low moisture vapour transmission rate
  • Lasts lifetime of the building
£11.24Ex VAT£13.49Inc VAT
Pre Formed Corners 150mm Rise

Pre-formed corners are suitable for use on sites affected by radon, methane, carbon dioxide and hydrocarbons/VOCís. ...
  • Compliant to BS8485:2015
  • Effective against radon, methane, carbon dioxide and hydrocarbons/VOCís.
£18.33Ex VAT£22.00Inc VAT
Visqueen Zedex CPT High Performance DPC

Visqueen Zedex CPT High Performance Damp Proof Course (DPC) and cavity tray system is manufactured from co-polymer thermoplastic (CPT) provi...
  • Outperforms all other high performance flexible DPCs
  • Contains no hazardous pitch or PVC plasticizers
  • Excellent tear resistance under high compressive loads
  • Low permeability to Radon and Carbon Dioxide gases
  • BBA Certificate No.94/3059
£11.54Ex VAT£13.85Inc VAT
GM Super Membrane

Protech GM Super is a high performance proprietary reinforced gas barrier, that incorporates a 12 micron aluminium foil layer, for maximum p...
£249.99Ex VAT£299.99Inc VAT
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