Our barrier membranes are an effective and easy-to-install way to guard against harmful levels of radon. All of our gas protection membranes have all been carefully developed to provide contractors and developers with a successful answer for ground gas issues and comply with the latest codes of practice, published by organisations such as BRE and CIRIA. Manufactured specially to provide a lifelong solution for new buildings, Juta Radon Gas Membranes are a total ground gas construction solution.
Unroll the first membrane. Make sure that it is laid on a smooth surface or one that has been sand blinded to prevent any punctures. Inspect it carefully to make sure that there are no indentations or protrusions.
You should also ensure the surface is free from dust or grease, and is completely dry. It is this tape that makes sure the membranes are waterand gas tight. Unroll the second membrane, overlapping the first membrane by mm. Ensure that both membranes remain dry and free from dust and dirt. Remove the protective paper from the Double Sided Tape. Now apply pressure to the membrane in order to join the two membranes together.
Every joint between gas membranes needs to be made gas tight in this way with the double-sided tape. You can now use a single-sided tape to seal the top join of the membranes. This creates an airtight seal.
It also stops the section of overlapping membrane from flapping up and the screed getting between the two sections of membrane. Cut a hole in the membrane as close to the size of the pipe as possible.
When the pipe is in place, you can use top hat fittings over the pipes alongside gas tape to ensure a gas tight seal. You should always take measures to protect the radon membrane once it has been laid.
Any puncture at this stage means that it is no longer gas-tight. Either cover the entire area with some form of temporary boarding or lay a floor screed straightaway. Permagard stock the Radbar range of tapes as described above. The below diagram shows the jointing of membranes using our Radbar tapes. All joints need to be gas-tight including the one between floor and wall, with particular attention paid to corners and including under walls and to gas DPCs. Important note: these gas membrane details are not working drawings.
The final details are the responsibility of the designer, and will relate to your specific project. If you are looking for a radon barrier installer in your area then your best bet is to seek recommendations from friends and local construction professionals that you trust.
You can use websites like Checkatrade, TrustPilot, and Reviews. It always make sense to meet different installers and ask for a few quotes. This guide should give you an understanding of the relevant issues to discuss with them. To install an entire gas system, you will need a gas membrane that extends the entire floor and walls.
You will also need to make provisions to aid with ventilation. This will help prevent gas accumulating beneath the floor. There are a number of ventilation options available, spanning natural ventilation with a ventilation layer installed and air bricks to fans. It is worth consulting a professional around which option best suits your specific situation. A key component of these ventilation systems is a radon sump pump. It removes the radon gas from the property to a safe evacuation point, much the same as a basement sump pump.
For larger commercial and industrial units, you will need to install an active gas system. This relies on electromechanical elements to enhance the ventilation. Essentially a radon barrier and a radon DPM damp proof membrane are the same thing. They both refer to plastic sheets that prevent the ingress of gas into a building. The main difference between a radon barrier and standard DPM or damp proof membrane is that the latter only prevents moisture from the ground entering a property.
They are both plastic sheets that are either installed under a new concrete slab or on top of it in. Standard DPMs are only suitable in sites that are not a high gas risk. Radon membranes are relatively inexpensive. At Permagard, we aim to keep our radon membrane prices low and the quality high. There is a more comprehensive list of Radon questions covering both remedial radon protection and construction from the BRE. You can contact our expert team free of charge — they are always happy to share technical information and answer your questions.
Complete the form opposite and our sales advisors will call you back to discuss your requirements. Your details will only be used for the purposes of this enquiry. We promise not to share your information. Product Overview Novia Radon Barrier is an approved blown polythene material suitable for use as a radon barrier damp proof membrane in solid concrete ground floors that are not subject to hydro-static pressure.
Download Links Radon Barrier Datasheet. Declaration of Performance.
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