Basement Insulation for floors and Walls

Basement insulation featuring high compressive strength & water resistance


Basement Insulation

Cellecta’s basement insulation boards are ideal for basement applications. The insulation boards are manufactured from extruded polystyrene and feature high compressive strength, a closed cell structure ensuring high water resistance and excellent thermal performance. A variety of grades (250 to 700kPa) are available to suit different loading conditions and applications.

All grades of basement insulation have excellent life-long thermal performance and very low water absorption, allowing them to be installed above or below the dpm. Cellecta extruded polystyrene basement insulation boards are 100% recyclable, with HEXATHERM boards also having a <5 GWP, making them fully compliant with CSH Pol 1 requirements.

Basement Thermal Insulation Board Benefits

HEXATHERM Insulation Benefits

  • Domestic, commercial and industrial applications
  • 250-750 kPa high compressive strength
  • Able to withstand heavy point loads
  • Closed cell structure
  • Suitable for areas in close proximity to water
  • Blown with reclaimed CO2
  • 100% Recyclable
  • Excellent life long thermal performance
  • Range of thickness’ available 20-160mm
  • Super low U-values achievable

HEXATHERM Accreditations

Basement Construction details

Suitable application products 



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