Gas Barrier Membranes: Protecting Structures from the Ground Up with Principal Building Products.

In modern construction, protecting buildings from ground gas risks is as important as ensuring structural integrity. Hazardous gases such as methane, VOCs (volatile organic compounds), carbon dioxide, and radon can pose serious risks to both buildings and occupants.

High-performance gas barrier membranes provide a critical function to be installed within the substructure; they prevent gas ingress while maintaining moisture protection and supporting compliance with Building Regulations.

Principal Building Products is a trusted supplier of BBA certified gas membranes across the UK and Ireland. Their Evolution Gas membrane range is designed for demanding environments, delivering both technical performance and on-site practicality.

Ground gases can be both man-made and naturally occurring and can be identified at planning with soil surveys. Methane/Co2 may migrate from contaminated land, landfill, or former mining sites, while radon is a naturally occurring radioactive gas linked to serious health risks. VOCs are also an increasing concern on brownfield developments.

Without effective ground gas protection systems, these gases can accumulate within buildings, creating safety hazards and long-term health implications, but Principals have an abundance of technical expertise to work closely with architects, engineers, contractors, and merchants, their team offers BS 8485, Ciria and NHBC Foundation NF94 compliant gas protection systems tailored to each project.

Technical services:

Review of ground investigation reports and gas risk assessments

Specification/recommendations of appropriate gas membrane systems

Detailed material take-offs and quantification

Plot-by-plot calculations for housing developments

Bespoke preformed unit design and costing

The market leading innovation behind Evolution gas membrane offers high resistance to methane, VOCs, carbon dioxide, and radon with its advanced multi-layer NF (non-foil) structure for durability and resistance to degradation in wet concrete.  Compatibility with full systems including tapes, top hats, and accessories with BBA certification.

Principals gas barrier membrane systems are widely used across residential developments, commercial and industrial buildings, schools, healthcare, and infrastructure projects, particularly on brownfield and radon-affected sites.

Choosing the right gas barrier membrane is essential, but so is working with a supplier that supports design, specification, and practical material planning and is commercially competitive.

With a proven product range and a collaborative, technically driven approach, Principal Building Products delivers complete gas protection solutions while helping you build with confidence from the ground up.

Speak to your local James Burrell team for more information.