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Hazardous ground gases are a problem in the UK, where residential buildings have an average lifespan of more than 100 years. Some buildings may not have adequate gas protection measures in place, while those that do can find that the effectiveness of their gas mitigation measures has been diminished by increasing rainfall and severe weather events.
This pre-recorded webinar provides an overview of CIRIA’s guidance Retrofitting hazardous ground gas protection measures in existing or refurbished buildings (C795). Expert speakers discuss how the risk assessment process should be carried out to determine the scope of the process, as well as the main principles, pros and cons of various gas protection measures for ground works and basements.
- Learn how risk should be assessed for different types buildings including basements
- Understand the pros and cons of ventilation, sealing of preferential migration pathways, membranes and sub-slab works in ground works
- Hear how other building performance requirements, such as water and damp penetration, condensation, fire resistance, structural performance, and disabled access, should be considered as part of the retrofit design
- Discover how verification should be carried out
- Master how to select the appropriate gas protection measures for your building projects
Who should attend
- Ground gas specialists
- Local authorities
- EA, SEPA, NRW, NIEA
Wednesday 25 August 2021
14:30 - 15:30
14:00 Welcome and introduction
Joanne Kwan, Project Manager, CIRIA
14:15 Retrofitting ground gas protection measures – how can CIRIA’s new guidance
Hugh Mallett, Technical Director, Buro Happold and
Steve Wilson, Technical Director, Environmental Protection Group
14:35 Interactive discussion and Q&A
14:55 Closing remarks
CIRIA members Free
Non-members £35 + VAT
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