Underlay for Underfloor Heating
The issue with carpet and underlay for underfloor heating, it can act as an insulator and stop the heat penetrating to the surface, therefore, the combined TOG rating of the underlay and carpet must not exceed 2 togs (thermal insulation resistance) and the temperature we would not recommend exceeding 27 degrees Celsius.
According to the carpet supplier AE Burt ltd the underlay needs to allow adequate heat to pass through the carpet and into the room but also gives the carpet a good underfoot feel and adequate performance over its lifetime. The thermal resistance of carpet underlay is varied over a number of factors, the most important being what material it is made of. Felt and PU underlays are not normally recommended as they have an inherently high thermal resistance. Usually, a rubber underlay performs the best in this situation.
Tog values of underlays vary considerably with a luxury Underlay such as Tredaire Sensation having a tog value of 2.89 togs and Duralay King has a low value of just 0.80 togs
Begin shopping today for all your underfloor heating requirements, or contact us so we can help you by calling 01887 822028 or email us today.
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