Cement Coated XPS300 Overlay Board
£12.70 (inc.VAT)Cement coated low profile overlay boards are perfect for retrofit installation over concrete and wooden subfloors.
- Low profile – 20mm thick
- Holds 16mm pipe at 150mm spacing
Home » Water Underfloor Heating » Low Profile Underfloor Heating Overlay Panels
Discover our low profile heating panels for wet underfloor heating. Panels are 20 mm thick and are designed to accommodate 16mm pipes. We also offer transitional panels for areas with higher density requirements. Complete your installation with our range of adhesives suitable for attaching the panels to any solid floor.
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Cement coated low profile overlay boards are perfect for retrofit installation over concrete and wooden subfloors.

XPS400 overlay boards are used to install underfloor heating onto existing floor surfaces. These panels can be secured to a solid subfloor and are perfect for retrofit installations.
*PLEASE NOTE: THIS PRODUCT HAS A MINIMUM ORDER QUANTITY OF 10 BOARDS*

The NEW XPS 500 underfloor heating overlay boards offer a simple solution to install underfloor heating onto existing floors. These panels can be placed directly onto any solid surface and are perfect for retrofit installations. These boards feature performance benefits over the standard EPS Overlay Boards.
**PLEASE NOTE: THIS PRODUCT HAS A MINIMUM ORDER QUANTITY OF 10 BOARDS**

**PLEASE NOTE: THIS PRODUCT HAS A MINIMUM ORDER QUANTITY OF 10 BOARDS BUT THIS CAN INCLUDE XPS400 AND XPS500FOILED BOARDS**

**PLEASE NOTE: THIS PRODUCT HAS A MINIMUM ORDER QUANTITY OF 10 BOARDS BUT THIS CAN INCLUDE XPS400 AND XPS500FOILED BOARDS**

These EPS panels are designed to fit snugly between existing joists or between battens on concrete subfloors. In joist panels are 1200 mm x 350 mm x 50 mm, with 200 mm pipe spacing for 16 mm pipework. These panels provide insulation to prevent heat loss while the foil coating promotes an even heat distribution across your space. Once installed, floorboards are placed over the joists/battens as normal.
**PLEASE NOTE: THIS PRODUCT HAS A MINIMUM ORDER QUANTITY OF 55 BOARDS**



Quick Drying Adhesive Canister – 13 kg. Used with a spray gun to secure EPS underfloor heating boards to any solid surface.
Up to 200m² coverage!

Adhesive spray gun and hose set. For use with 13kg quick-drying adhesive canisters (sold separately). Ideal for securing EPS underfloor heating boards.

500ml can (covers 5m2).
Used to bond overlay boards to the floor.

Replaced by superior xps400 boards*
The EPS 400 low profile overlay floor panel (1200mm x 600mm x 20mm) offers a simple solution to install underfloor heating into your home without the need to uplift your floor. The panels can be placed directly onto the existing concrete, floorboards or solid flooring and are a perfect choice for retrofit installations.
We also offer 200 Micron Floor Panels.
They are suitable for laminate, carpet, tiles, vinyl and engineered wood. With a minimal height increase of just 20mm and a high compressive strength of 400KPA they are very lightweight meaning they are simple to fit and are easily installed.
**PLEASE NOTE: THIS PRODUCT HAS A MINIMUM ORDER QUANTITY OF 10 BOARDS**
Our XPS400 Underfloor Heating Panels have become a best-selling product for good reason—they offer a simple, high-performance solution for installing underfloor heating onto any existing floor. Crafted from durable extruded polystyrene (XPS) with a high compressive strength of 400 kPa, these boards are incredibly strong and lightweight, making installation a breeze for both professionals and DIYers.
For projects that require a higher heat output, our XPS500 boards hold pipes at 120mm spacing. These panels have various design features which make them ideal for use with air source heat pumps.
For both our XPS400 and XPS500 underfloor heating panels – please note that each have minimum order quantities of 10 boards. If you have any further questions, please don’t hesitate to call or send us your plans for a full quote!

The Prowarm ProFloor system is an innovative method for installing wet underfloor heating over joisted floors. It features a pre-routed OSB board (Oriented Strand Board) and HDF top board (High-Density Fibreboard). This system offers a combination of structural strength and excellent thermal performance, making it ideal for both new builds and renovation projects.
Each board measures 1200mm x 600mm and is designed to accommodate 16mm underfloor heating pipes, allowing for straightforward installation and efficient heat distribution.
This low profile UFH system replaces current floor boards, raising original floor height by only 6mm.

Yes, low-profile underfloor heating allows you to install underfloor heating without lifting your existing subfloor. This removes a large part of preparation work, speeds up installation and provides a high, even heat output across your whole floor area.
For installation over existing subfloors, our low-profile overlay system increases floor height by 20mm.
If installing underfloor heating over the joisted floor, the system can be installed between the joist leading to no floor height increase at all. Check out our between joist methods like spreader plates or in joist panels.
Height required depends on system type.
Overlay – 20mm on top of existing sub floor
Screed (New Floor) – between 50-70 mm on top of insulation.
Between Joists – No height increase
Remember to include the thickness of your floor covering in any height calculations, as well as any other intermediate layers such as self-levelling compound or underlay.
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Very professional service. I was very impressed with the EPS400 range.
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