LQM is a specialist environmental consultancy based in Nottingham (UK) with an international reputation for assessing and managing the risks posed to human health and the environment by contaminants in soil. Increasingly this is being done within a context of sustainable development and specifically sustainable brownfield regeneration.

We provide consultancy, peer review and expert witness services, contract research and training courses on all aspects of the management of land contamination to problem holders, developers and local government.

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Technical Briefing Webinar (Ground Gases): Gas Membranes – site specific specification of appropriate gas membranes (1.25 hours)

Selecting the relevant membrane on a site-specific basis requires a site specific risk assessment, especially for VOC sites. Simplistic assessments may overestimate risk by many orders of magnitude, whilst incorrect specification may not meet the design life of the building.

Proprietary gas membrane may need to be specified having full regard to the gas/vapour concerned, the material it is manufactured from, its physical properties (tensile strength, puncture resistance) and permeability to the gas in question. The membrane thickness is a key parameter if joints are to be welded whilst adequate protection of the membrane is required to ensure that installed gas membranes have retained their integrity following the build sequences of follow-on trades.

This Technical Briefing Webinar, hosted by LQM, will be delivered by Steve Wilson who is Technical Director of the Environmental Protection Group (EPG) Limited. Steve has authored numerous technical papers and publications and provided training relating to gassing issues over many years. Steve will provide insight into specifying appropriate gas membranes on a site specific basis.

Following the webinar you will be supplied with a webinar recording and copy of the slides.

Prices: Prices exclude VAT. Please note purchase is via online card payment onlyTerms and Conditions apply

  • Content
  • Benefits
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  • Testimonials

This webinar (BST 1315-1430) will cover:

  • what are the key gas membrane guidance documents
  • key recommendations of the relevant guidance and good practice
  • site-specific considerations for gas membranes
  • requirements to ensure appropriate specification of gas membranes

At the end of the webinar, you will:

  • be aware of the relevant gas membrane guidance documents
  • better understand the requirements for specifying gas membranes
  • know where to look for further information 

Get the chance to ask Steve questions!

This webinar is mainly relevant to regulators (including local authority staff) and consultants involved with the redevelopment of sites where ground gases are likely to be an issue.

It will be particularly relevant to anyone looking to:

  • - specify gas membranes at sites with gassing issues
  • - review or regulate sites at which gas membranes are being installed
Location Date Place Cost Places
Recorded Webinar Available TBC £30.00 39


Note: All prices exclude VAT, which we are obliged to charge at the prevailing rate




Can't make these dates?  Have lots of potential delegates? Have you considered hosting this course for your staff? Or commissioning a bespoke course to meet your training needs?

“Thank you to Steve Wilson and Geoff Card for an awesome day”

“Thanks for such a great presentation, it was honestly one of the best training events I have been to”

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