Underboard Acoustic Batten EPS35

Part of the Warmis Dry Install Range

Structural Floor Deck
16mm UFH pipe
Foiled & routed EPS
Acoustic Batten
Acoustic Underlay (If required)
Damp proof membrane (if required)
Concrete subfloor
Full specification


The Underboard Acoustic system has been designed to sit between timber battens at 400mm centres.

Manufactured from (EPS) Extruded Polystyrene Insulation, Underboard panels are faced with pre-bonded soft temper aluminium sheets; panels can be easily trimmed on-site. The system has been designed to eliminate air gaps between the base of the floor deck and the Underboard panel, direct contact with the heat diffuser ensures good thermal transfer. Underboard Acoustic Batten panels are 35mm thick, and sit between acoustic battens which ensure the panels have direct contact with the finished floor. Underboard panels transfer heat far more efficiently by more than 30% compared to aluminium diffuser plates 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, battens are notched where the pipe loop passes through battens to the next panel.


  • Low profile


  • Screed system


  • Dry install

  • Floating system


  • Low profile


  • Suspended system

  • Structural Strength

  • High thermal output

  • Acoustic integration

  • Panel thickness

    Site Dependant

  • Minimum build up

    Site Dependant

  • Pipe diameter / Max loop length

    12mm/80mts – 16mm /125 mts

  • Pipe centres


  • Weight with water & pipe no covering

    Site Dependant

  • Application

    New Build / Retro Fit

  • 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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