| 01250 872 261

New ‘Protech Radon 400’ Gas Membrane Added to Product Portfolio

Radon protection has become a hot topic for the industry. Once regarded as something only to worry about in specific regions of the UK, experience has led to a more robust approach to assessment and mitigation in recent years.

The reason for radon’s low-profile is evident in its infamous moniker: “the quiet killer”. Compared to other dangerous ground gases like carbon dioxide or methane, the consequences of over-exposure to radon are felt less quickly and experienced less dramatically.

That’s not to say radon is any less dangerous than CO2 or methane. The British Medical Journal estimates in-home radon poisoning is linked to over 1000 deaths in the UK every year, and rates radon as the second-highest contributor to lung cancer behind smoking.

The main challenge of dealing with radon is that there is no practical way of eliminating or neutralizing its source. Contrasted with other ground gases that are the result of pollution or historical land usage, radon is the product of natural geological processes that have been going on for eons. High radon concentration is linked to the regions in the UK with the most granite bedrock such as South West England, the Peak District, and Aberdeenshire.

The only way to manage the risk of dangerous in-house radon concentrations is to prevent the radon from getting indoors in the first place. The most common way to do this is through the installation of a ground gas barrier membrane.

There are some key considerations when choosing an appropriate radon membrane:

  • Meets Guidance Requirements: The BBA requires membranes to be a minimum 0.4mm (400 microns) thick to be eligible to be called a radon barrier
  • Good Strength and Elongation Properties: This is particularly important for membranes being installed under solid concrete slabs, as the concrete pour may stretch weaker membranes.
  • 'Thicker’ Doesn’t Mean ‘Better’: Membranes that are significantly thicker than 0.4mm may provide specifiers peace of mind but will more difficult to install on-site. Cumbersome membranes may work against fine detailing work in corners and around floor penetrations, resulting in an imperfect ground gas seal and costly remediations.

In response, the A. Proctor Group Ltd. have unveiled their latest ground gas protection membrane: Protech Radon 400. This membrane is reinforced to resist stretching and elongation, and can be used with both solid and suspended ground floor applications. Made of virgin material, Protech Radon 400 is extremely robust but remains flexible and easy to handle, even at very low temperatures. The membrane junctions can be taped or welded and, at just over 0.4mm thick, makes detailing quick and easy

UK Availability
Global Availability

UK Availability

North East Scotland & Islands
Linda Kay
Regional Sales Manager


Sam Swindell
Regional Sales Manager


Adam Salt
Regional Sales Manager


South London & South East
Josephine Matchette
Regional Sales Manager


Wales & South West
Marc Blackie
Technical / Regional Sales Manager

07968215 755

North London & East England
Ben Cremer
Technical / Regional Sales Manager


Global Availability

North America
Jeff Dibdin
International Account Manager.


South America
Jeff Dibdin
International Account Manager.


Jeff Dibdin
International Account Manager.


Jeff Dibdin
International Account Manager.


Jeff Dibdin
International Account Manager.


Jeff Dibdin
International Account Manager.


Related Products





Recent News







For any building to have an energy efficient, healthy, moisture free building envelope there is a clear need to manage the balance of Heat, Air and Moisture movement (HAMM) throughout the building’s life cycle from design, construction, completion and use.



The Haugh

The A.Proctor Group operates out of The Haugh in Blairgowrie, which has belonged to the family since the early 1900’s and now acts as the Head Office for the Administration departments and Customer Services.



Free Sample & Brochure Request

In order to fulfil your Free Sample & Brochure Pack request, we need to store and process your data as follows:

  • Use your mailing address to send your sample & brochure.
  • Use your email address to send you a confirmation email.
  • Use your phone number to check you've received what you requested.
  • Use website cookies to analyse how you got to our website & what you did while you were here.

Sample & Literature Request

Material Sample

Zoom Meeting

CAD Detail Review

Request A Calculation

Zoom Presentation

Specification Check

Latest News

Contact Us

  8:30am - 5pm, Mon - Fri

  01250 872 261

  01250 872 727


  A. Proctor Group Ltd., The Haugh, Blairgowrie, PH10 7ER





Innovative Construction Products for Over 80 Years.