Timberlay Heatflow
2mm Underlay

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Timberlay Heatflow helps underfloor heating systems perform more efficiently, the underlay is covered in little holes which improves the heat transferred helping to lower energy bills by not having to turn up the systems too high, the underlay features superb sound reduction whilst also providing firmness underfoot making your floor extremely comfortable to walk on.


Timberlay Heatflow also includes a built in damp proof membrane (DPM) to stop moisture coming up from the sub floor.


Each underlay has a film which when peeled, allows for easy joins. No additional tape is necessary.



  • 10m² coverage per roll
  • reduces sound up to 22dB 0.6 Tog Rated
  • Each roll is 1.1m wide
Full Specifications+
Impact Sound Reduction
Roll Coverage