Pro Liquid Gas Membrane ‘LGB’ (Liquid Applied)

Pro Liquid Gas Membrane ‘LGB’ (Liquid Applied)

Pro LGB is a ready for use specialist styrene butadiene latex based liquid applied gas membrane. It offers a simple, continuous passive gas prevention barrier against the ingress of Methane, Carbon Dioxide, Radon, Ground Gas, VOC, air & moisture into buildings. MemTech Pro LGB also acts as a waterproofing membrane complying with the requirement C2 and C4 schedule 1 of the Building Regulations 1991 for England and Wales.

MemTech Pro LGB complies with the latest codes of practice as published by BR211, 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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  • Application
  • Product Details
  • Specification
  • Downloads
  • Technical Drawings
  • Suitable for new and existing structures
  • 3rd Party Accredited/Independently tested
  • Acts as a Damp Proof Membrane
  • Complies with BRE211:2015 and BS8485:2015+A1:2019
  • Supplied in a 15kg container
  • MemTech Liquid Gas Membrane can be used for providing damp proofing, gas proofing or waterproofing to a range of applications.

Ground Gases and Contaminates suitable for

  • Hydrocarbons
  • Methane (CH4)
  • Carbon Dioxide (CO2)
  • Radon (Rn)
  • Volatile Organic Compound (VOCs)
Product Details
Product Code:
DMS 405
Applied Thickness:
>1.0 mm
Form Supplied:
Viscous Liquid
Pack Size:
Chemical Composition:
Advanced SBS with speciality additives
Water tightness:
EN 1296, EN 1367, EN 1928 - Pass
Methane Permeability:
BS EN ISO 15105-1 ml/m2/day/atm 0.01
Radon Permeability:
Saarland University, GER mm >1.0mm applied thickness provides a complete barrier to Radon
  • J30 Liquid Applied Tanking/Damp Proofing
  • BS 8485:2015+A1:2019
Technical Drawings

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