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Gas protection is a technical solution to prevent or to control gas penetration into properties and structures. Gas protection systems are critical in projects constructed on land affected by permanent ground gas and/or volatile organic compound (VOC) contamination.
Greater emphasis on appropriate gas protection measures have been brought about by the issue of BS 8485:2015+A1:2019 – Code of Practice for the Design of Protective Measures for Methane and Carbon Dioxide Gases for New Buildings. All ground gas (Methane, Carbon Dioxide, Radon, VOC’s, along with others) protection systems should be designed in accordance with the most up to date Guidance and Regulations. Attention is drawn to CIRIA C665, C716, C735, C748 and BS 8485:2015+A1:2019. In addition, there are specific requirements for building warranty providers such as NHBC.