Tredaire Treadmore is rated 1.03 TOG at 7.95 mm. Whether it works over underfloor heating and which carpets it pairs with under the 2.5 TOG limit.

Updated 05 September 2026.

Underlay TOG rating

Tredaire Treadmore TOG rating and underfloor heating

The published TOG and datasheet figures for Tredaire Treadmore, and what it means over a heated floor.

1.52.5
1.03TOG
Suitable for UFH

Leaves 1.47 TOG of the combined budget for the carpet on top before the 2.5 TOG limit is reached.

PassMarginalFail
Tredaire Treadmore is rated 1.03 TOG and is suitable for underfloor heating. It leaves 2.47 TOG of the combined budget for the carpet on top before the 2.5 TOG limit is reached.
Published datasheet
ManufacturerInterfloor (Tredaire)
TOG rating1.03 TOG
Thickness7.95 mm
Density390 kg/m3
Sound32 dB impact reduction
Underfloor heatingSuitable

Treadmore is a dense 7.95 mm crumb-rubber stretch-fit underlay rated 1.03 TOG. It stays under the 1.3 TOG underlay ceiling, so it pairs with lower-TOG carpets over a heated floor while giving a firmer, harder-wearing feel than the thin sponge underlays.

Against the UHMA combined-TOG rule, in-situ resistance is the carpet TOG plus the underlay TOG minus 1. With this underlay at 1.03 TOG, a carpet up to 2.47 TOG keeps the pair under the 2.5 TOG limit.

TOG measures thermal resistance, so a low number means heat passes through easily. For a floor covering over underfloor heating that is what you want. A comfort underlay chosen for warmth underfoot does the opposite job and is the usual reason a heated floor underperforms after a carpet goes down.

Pairings and alternatives
Cormar Pimlico with Tredaire Treadmorecombined 1.03 TOGCormar Primo Textures Ribbed with Tredaire Treadmorecombined 1.03 TOGCormar Primo Textures Weave with Tredaire Treadmorecombined 0.93 TOGCormar Apollo Plus with Tredaire Treadmorecombined 1.13 TOGCormar Apollo Elite with Tredaire Treadmorecombined 1.53 TOGCormar Fairisle with Tredaire Treadmorecombined 1.53 TOG

Questions and answers

What is the manufacturer of the Tredaire Treadmore TOG rating and underfloor heating?

Interfloor (Tredaire)

What is the tog rating of the Tredaire Treadmore TOG rating and underfloor heating?

1.03 TOG

What is the thickness of the Tredaire Treadmore TOG rating and underfloor heating?

7.95 mm

What is the density of the Tredaire Treadmore TOG rating and underfloor heating?

390 kg/m3