Multi Room Wet Underfloor Heating XPS Overlay Kit – High Output UFH
(inc VAT)
Overlay kits allow you to install water underfloor heating without having to remove existing floor finishes, or dig out and re-lay a new slab.
With a profile of only 20mm, this versatile system can be installed directly onto virtually any solid, level surface including tiles, concrete or wood. Best of all, it doesn’t require additional insulation installed beneath it since the high density of the panel acts as an insulator, directing all heat upwards into the room for maximum performance. These rapid response heating kits can heat a room from cold in around 30 minutes, and can be used as for a floor warming system, suplimentairy heating, or as the primary heating system.
The 400KPA high-density overlay boards are pre-grooved and covered with a layer of aluminium which spreads the heat evenly. They can be used with almost any type of flooring, and we recommend reading the “flooring advice” below for different finishes.
These boards MUST be bonded to the floor using a non-solvent based adhesive to ensure the board and flooring does not lift. Failure to follow correct installation guidelines can result in costly mistakes, so please ensure you have read our installation guide before installing this system, or call our team for guideance.
Flooring Advice:
Carpets: before laying the boards, run a 20mm wooden baton around the room perimeter to provide a solid substrate to nail grip rods to. Prime the metallic board surface using Mapei Eco Prim Grip then cover with a 5-10mm self levelling screed to provide a flat, level surface. Carpet and underlay combined must not exceed 2.5tog.
Engineered wood & laminate: include a moisture barrier over the boards before laying flooring. Cover with our 3mm breathable underlay then lay the flooring as a floating floor. Alternatively, prime the board surface, cover with a 5-10mm layer of screed then bond the flooring to the screed using ahigh temperature wood adhsieve, like Mapei Ultrabond Eco S955.
Tiles: prime board surface using Mapei Eco Prim Grip, cover with a 5-10mm self levelling screed then bond the tiles with a flexible S2 tile adhesive.
Vinyl & Karndean: prime the overlay board surface using Mapei Eco Prim Grip and cover with a 5-10mm self levelling screed to provide a flat, level surface.
Installation Manual
Handy PDF guide for help with your installation…
Overlay Kit Installation Overview:
We advise laying a 5mm self levelling screed as the subfloor must be perfectly level before laying the boards. The floor must also be clean and free of any debris to provide a strong key for the adhesive. The adhesive is spread across the floor and each board is bonded to the floor. Wait for the adhesive to cure before walking over the boards. The pipe can then be walked into the pre-formed grooves. Pipe clips are not required to hold pipe in place.
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Delivery costs to UK mainland…
Standard UK postcodes: £25 with 1-2 working day delivery.
Highlands & Channel Isles: variable, please contact us for an exact price.
For more details, read our Delivery Information page »