TERMOFOL SUPERTERM 6 mm insulation board – Efficient underlay for underfloor heating

Description

The TERMOFOL SUPERTERM 6 mm insulation board is specially designed to of electric underfloor heating systems . This high-quality insulation board forms an efficient thermal barrier between the subfloor and the floor covering, significantly reducing heat loss and significantly increasing the efficiency of the underfloor heating system.

Thanks to the combination of excellent insulation values, high compressive strength and sound-dampening properties, the SUPERTERM 6 mm is ideal for use under laminate and floating vinyl floors .


Technical specifications

Characteristic Specification
Dimensions 120 × 80 cm
Thickness 6 mm
Material Extruded polystyrene (XPS)
Thermal conductivity λ = 0.035 W/(m·K)
Compressive strength CS(10) 300 kPa
Water absorption < 0,7%
Noise reduction Up to 20 dB
Equalizing capacity Corrects imperfections up to 0.88 mm
Moisture resistance High
Suitable for Laminate and floating vinyl floors

Key Benefits

Maximum energy efficiency
Limits heat loss to the subsurface, meaning your underfloor heating reaches the required temperature more quickly and uses less energy.

Improved living comfort
The insulation board ensures noticeably warmer floors and a more stable heat distribution.

Sound insulation up to 20 dB
Reduces walking noise and impact noise, ideal for apartments and multi-storey living spaces.

Durable and moisture-resistant
The XPS material is resistant to moisture, mold and mildew, which contributes to a healthy indoor climate.

Leveling effect
Corrects minor irregularities in the subfloor, so that additional leveling work is often not necessary.


Installation advice

  • Ensure a clean, dry and flat surface .

  • Place the SUPERTERM insulation boards tightly against each other to prevent gaps.

  • Fix the seams with suitable tape, preferably TERMOFOL SUPERTAPE .

  • Then place the heating foil according to the installation instructions.

  • Finish with a vapour barrier before laying the final floor covering.


Applications

  • Electric underfloor heating

  • Heating foil under laminate

  • Heating foil under floating vinyl floors

  • Renovation and new construction projects


Conclusion

The TERMOFOL SUPERTERM 6 mm insulation board is an essential underlay for anyone wanting to maximize the efficiency of their electric underfloor heating. Thanks to its excellent insulation value, sound insulation, and moisture resistance, this board increases both the comfort and energy efficiency of your underfloor heating system.

Product form

€20.30 Incl. VAT

✔️Ordered before 4:30 PM = Processed the same day
✔️Certified Brands
✔️Installation service
✔️14 Days Reflection Period

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    The TERMOFOL SUPERTERM 6 mm insulation board is specially designed to optimize the performance of electric underfloor heating systems. This high-quality insulation board... Read more

    • Shipped today? You still have: Feb 19, 2026 5:00 PM +0100

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    • Brand: Termofol
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    Description

    The TERMOFOL SUPERTERM 6 mm insulation board is specially designed to of electric underfloor heating systems . This high-quality insulation board forms an efficient thermal barrier between the subfloor and the floor covering, significantly reducing heat loss and significantly increasing the efficiency of the underfloor heating system.

    Thanks to the combination of excellent insulation values, high compressive strength and sound-dampening properties, the SUPERTERM 6 mm is ideal for use under laminate and floating vinyl floors .


    Technical specifications

    Characteristic Specification
    Dimensions 120 × 80 cm
    Thickness 6 mm
    Material Extruded polystyrene (XPS)
    Thermal conductivity λ = 0.035 W/(m·K)
    Compressive strength CS(10) 300 kPa
    Water absorption < 0,7%
    Noise reduction Up to 20 dB
    Equalizing capacity Corrects imperfections up to 0.88 mm
    Moisture resistance High
    Suitable for Laminate and floating vinyl floors

    Key Benefits

    Maximum energy efficiency
    Limits heat loss to the subsurface, meaning your underfloor heating reaches the required temperature more quickly and uses less energy.

    Improved living comfort
    The insulation board ensures noticeably warmer floors and a more stable heat distribution.

    Sound insulation up to 20 dB
    Reduces walking noise and impact noise, ideal for apartments and multi-storey living spaces.

    Durable and moisture-resistant
    The XPS material is resistant to moisture, mold and mildew, which contributes to a healthy indoor climate.

    Leveling effect
    Corrects minor irregularities in the subfloor, so that additional leveling work is often not necessary.


    Installation advice

    • Ensure a clean, dry and flat surface .

    • Place the SUPERTERM insulation boards tightly against each other to prevent gaps.

    • Fix the seams with suitable tape, preferably TERMOFOL SUPERTAPE .

    • Then place the heating foil according to the installation instructions.

    • Finish with a vapour barrier before laying the final floor covering.


    Applications

    • Electric underfloor heating

    • Heating foil under laminate

    • Heating foil under floating vinyl floors

    • Renovation and new construction projects


    Conclusion

    The TERMOFOL SUPERTERM 6 mm insulation board is an essential underlay for anyone wanting to maximize the efficiency of their electric underfloor heating. Thanks to its excellent insulation value, sound insulation, and moisture resistance, this board increases both the comfort and energy efficiency of your underfloor heating system.

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