Underboard EPS

Part of the Warmis Dry Install Range

Floating floor finish
UFH pipe 12mm & 16mm
Foiled and routed EPS 18mm, 25mm, 35mm & 50mm
Structural floor layer
Insulation layer
Full specification


The Underboard floating system has been designed for a wide range of floating floor finishes Manufactured from high density (EPS) extruded polystyrene insulation Underboard panels are faced with pre-bonded soft temper aluminium sheet, panels may be easily trimmed on site.

The system has been designed to eliminate air gaps between the base of the floor deck and the Under Board panel. Underboard Floating is available in four thicknesses 18mm, (shown above) 25mm, 35mm, and 50mm. Underboard panels transfer heat efficiently as they are in direct contact with the finished floor above making the system suitable for lower temperature heat sources. When the panels are in place the pipe is easily pressed into the channel piercing the foil.


  • Low profile

  • Screed system


  • Dry install

  • Floating system

  • Low profile

  • Suspended system


  • Structural Strength


  • High thermal output

  • Acoustic integration

    With Acoustic Layer

  • Panel thickness

    18mm, 25mm ,35mm & 50mm

  • Minimum build up


  • Pipe diameter / Max loop length

    12mm & 16mm

  • Pipe centres

    150mm & 200mm

  • Weight with water & pipe no covering

    1.5kgs ㎡ 50mm with 16mm pipe

  • Application

    Retro Fit / New Build

  • Heat pump friendly


With free technical support around the clock, you’ll always have access to assistance when you need it.

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