Good Practice Gas Membrane Testing and Verification of Protection Systems for Buildings against Hazardous Ground Gases was updated and clarified in 2015. When the updated British Standard BS8485:2015+A1:2019 was developed to operate alongside CIRIA C735.
The revised standards now supersede all previous guidance. The CIRIA C735 code of practice highlights that Independent Membrane Verification and Testing Programs are just as vital as the design and installation stages in any gas protection strategy.
As challenges in Ground Gas Protection become more complex, especially for developments in areas with CS2 gas protection risks such as landfills or brownfield sites, contractors and design teams across the UK, including cities like London, Birmingham, Manchester, Glasgow, and Leeds, should consider appointing a ground gas specialist at the earliest stage. Early involvement helps identify key requirements such as gas membrane detail, protection levels, and the type of radon barrier installation needed.
At UK Resilient Structures, we integrate with your project team to ensure full compliance with the most current British Standards and guidance. We help projects in locations such as Liverpool, Bristol, Sheffield, Newcastle, and Leicester meet and exceed regulatory requirements. Non-compliance with evolving standards like BS 8485 and CIRIA C735 can lead to delays, increased costs or failed inspections. These are risks we help you avoid from the outset.
We work closely with design and construction teams to ensure that every detail aligns with:
BS 8485:2015+A1:2019, the UK standard governing gas risk assessment and gas membranes installation.
CIRIA C735 (2014), which sets out best practices for verifying gas protection systems.
CL:AIRE RB17 (2012), a key guide in the verification of land contamination and gas risk remediation.
Independent verification of gas membrane installation is essential under BS 8485, particularly in medium to high-risk scenarios. Our experienced gas membrane installers serve sites nationwide. This includes projects in Nottingham, Edinburgh, and Southampton, where we ensure proper application whether using a standard gas membrane, radon membrane, or a combined solution suited for CS2 gas protection.
UK Resilient Structures offers a full turnkey service and manages everything from concept to completion. Our scope includes:
PI-Backed Ground Gas Protection Design with protection strategies backed by insurance.
Pre-Verification Plans that outline tailored verification strategies for each site.
Verification, including independent on-site testing and inspection of all installed gas membranes.
Verification Reports that provide full documentation suitable for local authority and building control approval.
Whether your project is in the heart of London, near the coast in Bristol, or located in the industrial zones of Manchester or Sheffield, we deliver consistent, compliant, and expert-level support for ground gas protection.
For trusted results and compliant installations of gas membranes, radon barrier installation, and CS2 gas protection, choose UK Resilient Structures. We are your expert partner in protecting developments across the UK.
