Patch Repair "How To" Video guide for Ground Gas Membranes

In this “How To” Video guide will we focus on patch repairs to ground gas protection membranes. Offering a step-by-step guide on effective seals along with tips and techniques.


When building on land where ground gases are present, it is essential to take steps to minimise the chances of these dangerous gases entering a property. Building Regulations must be carefully followed. One of the most widely available options is a ground gas protection system.


Ground Gas Protection systems are required when building on a contaminated site. To determine the level of risk, you will firstly need to access or commission a report. You can find more information in BS 8485:2015+A1:2019, which is the code of practice for the design of protective measures for ground gases for new buildings and extensions.

It is essential that the ground gas membranes are installed correctly, meeting all applicable building standards and regulations. Any mistakes in installation could result in harmful gases entering the interior of the property.

GROUND GAS PROTECTION SYSTEMS


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 – 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. In addition, there are specific requirements for building warranty providers such as NHBC.