GeoShield Birmingham

Independent Testing, Validation & Verification


Systems Designed to Protect Against Ground Gas Ingress


Conforming with all relevant European Standards
BS 8485:2015+A1:2019 , CIRIA 735 (2014), International Radon Measurement Association & ISO EN 9001:2015

Since 2015 construction & design standards Worldwide have begun to get reorganised with the goal of reducing all of the possible elements that pertain to the failure of solutions used to protect against harmful ground gas ingress into brand new buildings.The pioneer of all of these updates was in the UK with the updated version of the British Standard for Good Practice on the Testing and Verification of Protection Systems for Buildings against Hazardous Ground Gases. BS 8485:2015+A1:2019 , this superseded all past guidance. BS 8485:2015+A1:2019 operating together with the CIRIA 735 code of practice ‘Independent Verification & Testing Programs’ has now been harmonised by many EU Countries. BS 8485:2015+A1:2019 sets the codes of practice that regulate the installation of gas membrane solutions designed to safeguard against the ingress of Methane, Carbon Dioxide and has annexes pertaining to Radon & VOC’s.Dependent on the various project criteria independent gas membrane inspection is now often mandatory to make sure that every effort is made to minimise the risk to life.For projects of CS2 & above (British Standards)/ Amber 2 (NHBC) an Independent Testing and Verification program is needed as an essential part of the project strategy.The membrane verification company is usually required to be employed prior to development.GeoShield Limited are founder members of the British Verification Council and are ISO EN 9001 and ISO EN 14001 Accredited.Our  Gas Membrane Validation, Verification & Testing solutions are currently underway across Europe including projects in the United Kingdom, the Republic of Ireland, Romania, Croatia, Belgium, Turkey and as far east as the Philippines.The GeoShield Gas Membrane Verification Package is in accordance with all of the insistences made by the British Verification Council including ₤ 2,000,000 PI Insurance which is specific to Verification.

GeoShield GSR+ Radon Gas Protection Validation, Verification and Monitoring

The GSR+ Quality Assurance Program is a comprehensive hand-over document created for house builders and developers to pass to future owners. GSR+ provides new buyers with a historical log of the protection system application, ensures peace of mind and assists in conveyancing.
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Independent Ground Gas Protection Verification Services

In 2015 the British Standard for Good Practice on Gas Membrane Testing and Verification of Protection Systems for Buildings against Hazardous Ground Gases was updated, BS 8485:2015+A1:2019 supersedes all previous guidance.

BS 8485:2015+A1:2019 operating alongside the CIRIA 735 code of practice states Independent Membrane Verification and Testing Programs are as important as the design and installation process.

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