Combined noise and thermal underfloor insulation from extruded polystyrene for application under laminate flooring. It levels unevenness up to 5 mm


- improves the stability and the pressure resistance
- suitable for assembly on floor with high pressure and on premises with high people’s turnout
- improves the comfort when walking
- excellent thermal insulation properties
- reduces the noise of the steps in the room (with 5,5 – 6 dB) as well as in the premises on the lower storey (with 17 – 32 dB)
- levels unevenness up to 5 mm
- high resistance and stability with point loads on the floor
- fast and easy assembly


Scope of use

TERMOFLEX® XPS UNDERFLOOR INSULATION is a combined noise and thermal insulation from extruded polystyrene (XPS) for application under laminate flooring. It effectively reduces the noise of walking both in the same room and in the neighbouring premises – especially in the premises of the lower storey. 

The product is recommended for floor without in-floor heating. Its thickness and its excellent thermal insulation characteristics reduce the thermal losses and guarantee a warm floor. This is the reason why the underfloor insulation is not recommended for floors with in-floor heating.

TERMOFLEX® XPS UNDERFLOOR INSULATION is highly stable, pressure resistant and it prevents the damages in the connections between the laminated parquet in the places with higher point load. The underfloor insulation allows levelling of unevenness in the floor up to 5 mm. The product is suitable for assembly on floor with high pressure and on premises with high people’s turnout.




Reaction to fire Е according to BDS EN 13501


Indicative consumption

1 m²/m²



package 5 m²



length: 1000 mm

width: 500 mm

thickness: 3 mm; 5 mm; 6 mm