Radon Protection
Above Ground
The BRE guidance document, BR211 describes two levels of radon protection: basic radon protection and full radon protection.
The level of protection required is shown on the maps that accompany BR211. Plots located in light grey areas require basic radon protection and plots located in dark grey areas require full radon protection. However it is sometimes possible to adopt a lower level of radon protection than that indicated by the map if a BR211 radon report for the plot is purchased from the British Geological Survey here.
Basic radon protection can be achieved by installing a damp-proof membrane that is also capable of resisting radon across the ground floor of the building. Oldroyd Xs is an ideal membrane for this purpose as it is tough enough to withstand damage on site and can easily be folded round details such as door-frames.
When using Oldroyd Xs to protect against radon, all joints should be double-sealed as shown below:
Full radon protection acknowledges the fact that it is not reasonable to expect basic radon protection (above) to be installed perfectly, so the possibility will always remain for radon to pass through minor imperfections in the membrane system (e.g. where seals have not been perfectly formed). In order to get around this problem, full radon protection requires the addition of “active protection” in the form of a ventilated sump or floor void below the radon-proof membrane. This ensures that a high proportion of radon is expelled from the building before it comes into contact with the radon-proof membrane.
A simple and effective method of achieving full radon protection is to use a studded membrane such as Oldroyd Xv Black or Oldroyd Xv 20. This provides a radon-proof barrier whilst also forming a void that can be ventilated.
How can we help?
Related Pages
Get it Done
A liquid polymer additive for Drybase TS-Plus to enable basement waterproofing.
Read moreWith Tibby Singh and YDC Basements, Safeguard waterproofed a basement at an end of terrace home in Leeds using Drybase Tanking System.
Read moreA durable and easy to apply layer for domestic and commercial applications on concrete and brick surfaces.
Read moreBuilt in Summer 1940, the Type 26 pillbox is a 6 ft by 6 ft cube just big enough to house 4 soldiers and their guns. The 1 m thick concrete walls were built to withstand a direct hit from a naval warship. 98 tons of concrete went into creating the pillbox. In the 1980s, the whole exterior was covered…
Read moreA simple, long-lasting solution to protect masonry from penetrating damp is the use of a masonry sealant, like Stormdry Masonry Protection Cream. Masonry sealants protect walls against penetrating damp and thus prevent dirt and moisture ingress through rainwater. Stormdry is a cream-based masonry sealant, which protects building materials for 25 years against penetrating damp – with just one coat. The…
Read moreFleas are traditionally active from April through November, but modern central heating has led to them becoming an all year round problem. They spread discomfort, disease and infection that can affect humans and animals. Regardless of the time of year, your home can become flea-free with careful planning and a rigorous treatment regimen!
Read moreWhen Emerald Damp Specialists stepped inside a severely damp bungalow in Swindon, they knew they had to help. Along with 70 other companies and over 150 volunteers who donated their time and expertise, Emerald Damp Specialists resolved the extreme damp and mould problems at the property free-of-charge. For this project, ensuring that a valued member of the community had a…
Read moreTraumatic damp is defined as dampness caused by a building defect that lets moisture into the home.
Read moreSubscribe to get information about products and offers.