Brockway Galloway has a published TOG value of 2.13. The underlay TOG it can take and stay under the 2.5 TOG combined limit for underfloor heating.

Updated 05 September 2026.

Underlay TOG rating

Brockway Galloway TOG value and underfloor heating

The published Cormar TOG value for Brockway Galloway and the underlay budget it leaves over a heated floor.

1.52.5
2.13TOG
Suitable for UFH

Leaves 0.37 TOG of the combined budget for the carpet on top before the 2.5 TOG limit is reached.

PassMarginalFail
Published value
RangeBrockway Galloway
Construction100% undyed wool
TOG rating2.13 TOG
Max underlay TOG for UFH1.37 TOG

Brockway Galloway is a 100% undyed wool with a published TOG value of 2.13. Galloway is a 100% undyed wool carpet rated 2.13 TOG, the highest here. Its resistance exceeds the combined budget on its own, so it is not a match for underfloor heating.

Using the UHMA rule, in-situ resistance is carpet plus underlay minus 1. To keep Brockway Galloway under the 2.5 TOG limit the underlay must be no more than 1.37 TOG.

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.

Underlay pairings
Brockway Galloway with Duralay Technics 5combined 1.69 TOGBrockway Galloway with Duralay Heatflow for Carpetcombined 1.88 TOGBrockway Galloway with Tredaire King (Duralay King)combined 1.93 TOGBrockway Galloway with Duralay Durafit 650combined 2.23 TOGBrockway Galloway with Tredaire Softwalkcombined 3.82 TOGBrockway Galloway with Tredaire Dreamwalkcombined 4.26 TOG

Questions and answers

What is the range of the Brockway Galloway TOG value and underfloor heating?

Brockway Galloway

What is the construction of the Brockway Galloway TOG value and underfloor heating?

100% undyed wool

What is the tog rating of the Brockway Galloway TOG value and underfloor heating?

2.13 TOG

What is the max underlay tog for ufh of the Brockway Galloway TOG value and underfloor heating?

1.37 TOG