Current building regulations advise that any development or proposal on or near land affected by gas emissions must be adequately protected against the ingress of harmful gases such as Radon, CO₂, Methane and Hydrocarbons.
Ground gas assessments include proposals for remediation strategies and show how risks will be reduced to an acceptable level by preventative measures.
Lainton Services Limited supplies, installs and designs a range of ground gas membranes and ventilation systems, all of which comply with NHBC recommendations and are installed in accordance with BRE Report 414.
Our expert installers are NVQ Level 2 qualified and are fully trained and certified by the manufacturers of the materials we offer. All of our work is installed in accordance with: CIRIA 665, BS8485:2015, BRE Report 414 and NHBC Traffic Lights Amber 1 & 2.
Identifying and classifying gas risk levels in accordance with BS8576 and BS8485 standards before any remediation design begins.
Designing appropriate radon barrier systems for sites with elevated radon potential, in line with BRE Good Building Guide 73.
Specification of ventilation and membrane systems to manage methane and carbon dioxide ingress from landfill and made ground.
Ensuring all installations meet NHBC Traffic Light requirements for Amber 1 and Amber 2 sites as standard on every project.
Selection and design of passive and active sub-slab ventilation systems to prevent gas accumulation beneath structures.
Correct selection, lapping and sealing of ground gas membranes to achieve a continuous, tested barrier in accordance with BRE 414.
All Lainton ground gas installations are subject to a structured inspection and validation programme throughout the project lifecycle.
Pre-installation: Site conditions, substrate preparation and membrane specification are verified against the approved design before works commence. Any discrepancies are flagged to the principal contractor and design team before installation proceeds.
During installation: Our NVQ Level 2 qualified operatives carry out continuous quality checks on membrane laps, penetrations and service entries. A site supervisor is present throughout to document progress and ensure full compliance with CIRIA 665 and BS8485:2015.
Post-installation: On completion, all installations are subjected to a thorough visual inspection and, where specified, smoke or pressure testing to verify the integrity of the gas barrier. Photographic records are provided as standard and formal validation certificates issued on request, suitable for submission to building control.
