Brockway Lakeland Herdwick has a published TOG value of 1.3. The underlay TOG it can take and stay under the 2.5 TOG combined limit for underfloor heating.
Updated 05 September 2026.
Brockway Lakeland Herdwick TOG value and underfloor heating
The published Cormar TOG value for Brockway Lakeland Herdwick and the underlay budget it leaves over a heated floor.
Leaves 1.2 TOG of the combined budget for the carpet on top before the 2.5 TOG limit is reached.
| Range | Brockway Lakeland Herdwick |
|---|---|
| Construction | 100% undyed Herdwick wool loop |
| TOG rating | 1.3 TOG |
| Max underlay TOG for UFH | 2.2 TOG |
Brockway Lakeland Herdwick is a 100% undyed Herdwick wool loop with a published TOG value of 1.3. Lakeland Herdwick is a loop pile spun from undyed Cumbrian Herdwick wool, rated 1.3 TOG. Its loop construction sits at the lower end of Brockway's wool range for a heated floor.
Using the UHMA rule, in-situ resistance is carpet plus underlay minus 1. To keep Brockway Lakeland Herdwick under the 2.5 TOG limit the underlay must be no more than 2.2 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.
Questions and answers
What is the range of the Brockway Lakeland Herdwick TOG value and underfloor heating?
Brockway Lakeland Herdwick
What is the construction of the Brockway Lakeland Herdwick TOG value and underfloor heating?
100% undyed Herdwick wool loop
What is the tog rating of the Brockway Lakeland Herdwick TOG value and underfloor heating?
1.3 TOG
What is the max underlay tog for ufh of the Brockway Lakeland Herdwick TOG value and underfloor heating?
2.2 TOG