Plumbing & Heating Supplies

Water Underfloor Heating Cement Coated Boards

XPS Grooved Insulation 20mm for 16mm pipe


This high-quality 20mm Underfloor Heating Board elevates your home's heating system by providing an efficient, low-profile base for your pipework. Experience superior thermal performance and a robust foundation with our cement coated panels. High-Density Insulation. Our board features a 300 kPa high-density extruded polystyrene (XPS) core, designed for exceptional thermal insulation and lightweight handling. It ensures consistent performance and minimizes downward heat loss, making it a reliable component in your underfloor heating system.

Robust Construction. Faced with a reinforced cement coating, our underfloor heating board showcases remarkable durability. Its waterproof design and high compressive strength allow it to withstand heavy loads, providing a solid surface for finishing and ensuring your floor remains stable all year round. Easy Installation. 

With pre-routed channels for 16mm pipes at 150mm centres, our board simplifies the installation process. There's no need for complex subfloor preparations; the panels are easy to cut and install over existing solid or timber floors, making them an ideal choice for both new domestic builds and commercial retrofit projects. Panels should be laid with the panel joints staggered in a brick bond style. 

Compatible with most flexible low-pressure underfloor heating pipes. Provides a low-height build-up and insulated floor over existing substrates. Direct Tile Bonding: The lightweight, reinforced cement facing provides a robust surface that is ideal for the direct application of flooring-grade tiles using a combed tile adhesive. 

Versatile Finishing: Many other types of finish, such as engineered wood, carpet, or vinyl, can also be used with additional preparation or a separating layer of Construction Board.

  • Board Size: 600 x 1200 x 20(mm)
  • Pipe Centres: 150 mm
  • Thickness/Weight: 20mm / 2.6kg
  • Strength at 10% compression: 300 kpa
  • Thermal Conductivity: 0.033 W/mK
  • Density (foam core only): 33 kg/m3
  • Temperature Range: -50 / +75 °C
  • Recommended Flow Temp: 45°C to 55°C
  • Sound Reduction: 20dB
  • Water Absorption by volume: 0.8%
  • Fire-retardant class: Europe E Class Suitable for solid floors such as concrete, screed, and asphalt, as well as boarded suspended timber floors.
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