Follow the advice below when fitting insulation

Our technical staff are fully qualified electricians and plumbers and can offer expert advice on any additional issues you may have.

Need to talk to us? Call direct on: 01268 567016.

Sarah Beeny supports The Underfloor Heating Store
These guys are the experts in their field
Sarah Beeny supports The Underfloor Heating Store

...ask more questions

How much underfloor heating insulation do I need?

  • ProWarm™ tile backer boards

    ProWarm™ tile backer boards

    ProWarm™ Underfloor heating tile backer boards are 1200mm x 600mm and are supplied in both 6mm and 10mm

    Each board covers an area of 0.72m2 and we recommend that 10% is allowed for the cutting waste, the chart opposite will help you determine how many boards you require.

    They are not to be used with underwood heating because they are too hard but they are perfect for undertile heating. They are perfect for wet rooms and can be used in place of plasterboard on walls.

    Buy Now
    8m2
    ProWarm™ tile backer boards

    8 / 0.72 = 11.11 boards

    but we would recommend 13 boards to allow for cutting

  • ProWarm™ XP-PRO insulation boards

    ProWarm™ XP-Pro insulation boards

    ProWarm™ Underfloor heating XP-Pro insulation boards are 1200mm x 600mm and are supplied in both 6mm and 10mm. These are a budget option when installing beneath undertile kits.

    Each board covers an area of 0.72m2 and we recommend that 10% is allowed for the cutting waste, the chart opposite will help you determine how many boards you require.

    XP-Pro insulation boards are suitable for use with underwood and undertile heating.

    Using our chart, you can establish how many boards you require.

    Buy Now
    8m2
    ProWarm™ XP-Pro insulation boards

    8 / 0.72 = 11.11 boards

    but we would recommend 13 boards to allow for cutting

  • ProWarm™ ProFoam™ insulation boards

    ProWarm™ ProFoam™ insulation boards

    ProWarm™ Underfloor heating ProFoam™ insulation boards are 1200mm x 600mm and are 6mm thick. They are a budget option for our Underwood Heating System and even work as a fantastic low cost underlay even if your not laying underfloor heating.

    Each sheet covers an area of 0.72m2 and we recommend that 10% is allowed for the cutting waste.

    Not to be used for undertile heating.

    Buy Now
    8m2
    ProWarm™ ProFoam insulation boards

    8m2 = 10m2 pack

    not to be used for undertile heating

Area (m2) 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10
Boards Required 2 3 4 4 5 6 7 7 8 9 10 10 11 12 13 13 14 15 16
Area (m2) 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
Boards 2 3 4 4 5 6 7 7 8 9
Area (m2) 6 6.5 7 7.5 8 8.5 9 9.5 10
Boards 10 10 11 12 13 13 14 15 16