100% Independent
Ground Gas Protection System Verification

No Compromise, No Conflict of Interest, Best Practice Assured

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GeoShield Ground Gas Membrane Validation Program Staines

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 requirements Internationally have begun to get reorganised with the aim of removing all possible elements that pertain to the failing of systems implemented to shield against harmful ground gas ingress into new constructions.

The pioneer of all of these changes was in the UK with the up-dated 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 BS 8485:2015+A1:2019 , this superseded all prior guidance.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 govern the installation of gas membrane systems designed to safeguard against the ingress of Methane, Carbon Dioxide and has annexes pertaining to Radon & VOC’s.

Dependent on the different project requirements independent gas membrane inspection is now typically mandatory to ensure every effort is made to significantly lower the risk to life.

For projects of CS2 & above (British Standards)/ Amber 2 (NHBC) an Independent Testing and Verification program is required as a fundamental part of the project strategy.

The membrane verification company is usually required to be employed preceding construction.

GeoShield Limited are founder members of the British Verification Council and are ISO EN 9001 and ISO EN 14001 Accredited.

GeoShields Gas Membrane Validation, Verification & Testing programs are now underway across Europe including projects in the United Kingdom, Turkey, Romania, Croatia, Belgium, the Republic of Ireland and as far east as the Philippines.

The GeoShield 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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