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Learn more about Gas Membranes

Gas Resistant Membranes

Gas membranes provide a barrier against harmful ground gases including radon, methane and carbon dioxide. They can also act as a damp proofing membrane, protecting properties from moisture ingress and water vapour.

Permagard supplies both liquid-applied and plastic gas membranes. Our PermaSEAL PRO Liquid Gas Membrane is easy to apply in various new and retrofit applications to both walls and floors. Our radon gas membrane, manufactured from virgin polymer, highly durable and puncture-resistant, making it ideal for new flooring constructions. We also provide self-adhesive external membranes for protecting new build below-ground structures.

Here is our full range of gas membranes:

We also stock Radon Sumps, 90-degree bends, periscope vents and more.

Radon Protection

Radon is an invisible radioactive gas formed when the small amounts of uranium in rocks and soil decay. It is found everywhere but at varying levels. Radon can cause health issues, including increasing the risk of cancer in some instances. Certain areas of the UK have a greater chance of high radon levels and new build properties in these locations need protecting.

Radon Barriers

In areas where radon gas is found at higher levels, radon barriers must be used to prevent it from seeping into the building and harming the inhabitants.

Our Radon barrier membranes (both liquid and plastic) prevent gases from contaminated land like former landfill and industrial sites as well as naturally occurring sources, from entering a property.

As well as radon resistance, these products also act as an effective barrier against methane and carbon dioxide gases. The radon barriers we supply satisfy all relevant Building Regulations.

How radon barriers work

Our radon barriers are often part of an initial, passive control system. This means that they prevent the ingress of gases from the ground, in combination with ducting for ventilation. It can become an active system when suitable mechanical ventilation fans are installed to the ventilation pipework that was installed below the radon membrane. The 1600 gauge radon barrier membranes are designed to be installed during the construction of new concrete floors whereas the liquid radon membrane can be applied at any stage.

Important note: Radon gas barriers are not suitable for floors that are subject to hydrostatic pressure.

All membranes adhere to radon barrier building regulations and have been independently tested to ensure their resistance to underground gases.

Radon Barrier Costs

At Permagard, we’re committed to offering high quality products at low trade prices. We aim to keep radon barrier costs down by using trusted manufacturers.

Permagard - Gas membrane suppliers

Permagard are experts in all types of damp proofing, basement waterproofing and gas proof membranes. Our technical team are happy to help with any queries around radon barriers and their installation. Call us today on 0117 982 3282.

You can read our Gas Membrane Installation guide for more advice.