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6mm Thermal Insulation Boards have been specifically designed to use under heating mats and heating cables to prevent heat loss to the subfloor. The boards are cement based and designed for direct application of electrical underfloor heating and (ceramic) tiles. The boards have high levels of insulation characteristics and will make the underfloor heating mat or cable more efficient.

The Thermal Insulation Boards are returned boards for sale at a highly discounted price. These boards may include bashed or damaged edges, however are completely useable.

Install Areas

  • Bathroom
  • Wetroom
  • Kitchen
  • Conservatory
  • Living Room
  • Office
  • Lobby
  • Hallway


  • Tiles
  • Stone
  • Marble
  • Slate


  • Ensures upward flow of heat
  • Easy to cut and install
  • Suitable for wetrooms
  • Rot and warp resistant


length (mm) width (mm) depth (mm)

1000 600 10


Fire proof DIN 4102 material class B1
Waterproof water absorption <0, 5% after 28 days under water, according DIN53 421
Temperature proof – 30 tot + 70 °C
Insulation value 0,035 W/mK according DIN 4108
Pressure proof >0,20 N/mm according DIN 52 615