Verification of ground gas protection, what you need to know

This event will give an overview of how to verify membrane and other ground gas protection systems for contaminated sites. It is particularly useful for local authorities or other organisations who supervise such work

This event has been postponed in light of the Coronavirus (COVID-19) situation in the UK. The wellbeing of delegates, speakers and staff is our priority.

Instead, we have scheduled a lunchtime webinar on this topic on Monday 18 May 2020 – click here to register.

In addition, we will reschedule the original event once the situation has improved – please contact Hanifa Qamar to register your interest.


Hazardous ground gases can cause serious problems to residential, industrial and commercial developments.   Verification of ground gas protection systems is important part of managing these gases.

Although CIRIA report C735 Good practice on the testing and verification of protection systems for buildings against hazardous ground gases was published almost 5 years ago, there are still cases such systems were not installed or managed properly. There is now an L4 NVQ Diploma in Verification of Ground Gas Protection System.

However many professionals such as local authorities who supervise the verification  process and/or the integrity tests are not sure what to expect and how this could be done effectively and not affected by other site activities

Why attend

This event will

  • What to expect from a verification plan
  • Give an overview of the verification approaches for different types of ground gases
  • How to ensure that your verification experts/advisors will do what they say
  • Discuss issues how verification can done effectively with other site activities/follow on trade
  • Share good practice and experience
10.00   Introduction
10.05   Why bother with verification
10.20   What is a verification process
10.40   What to look out for methane, CO2 VOCs and radon verification
11.00   What is integrity testing and things to look out for
11.20   Refreshment break
11.40   Reporting
12.00   Question and discussion
12.30   Lunch
13.30   Workshops
14.30   Discussion
15.00   Close


Who should attend

Contractors, consultants, LA and other regulators

Wednesday 8th April 2020
10:00 - 15:00

CIRIA offices
Griffin Court
15 Long lane

CIRIA members, LACL and BRMF members: Free *
ALL other attendees: £95 + VAT

LACL and BRMF members, please email Customer Services to register for this event.
*There are only 2 free places available per company for CIRIA members, LACL and BRMF members
Please sign in or create an account to register for this event.
If you are experiencing issues registering for this event online please contact us on 
020 7549 3300  or email
The joining instructions will be sent 10 days before the event

Terms and Conditions
Click here for details of our terms and conditions that will apply.
Personal data is gathered in accordance with CIRIA's privacy policy.

Further information
For further information on CIRIA membership and other services, please contact:
Tel: 020 7549 3300
Fax: 020 7549 3349

08/04/2020 - 08/04/2020
Griffin Court
15 Long lane

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