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HC05 Evening Oak

Under Floor Heating Guide

Karndean Designflooring is suitable for use with both electric and water based underfloor heating. It is important that you follow the recommendation below to make sure you use the correct adhesive and acclimatisation.

Our commercial flooring is suitable over underfloor heating systems, but they should be insulated so that the surface temperature does exceeded 27°C.


The underfloor heating must be switched off 48 hours before, during and 48 hours after the installation. Temperature will then gradually increase (typically 3oC/hr) to the desired warmth level.

For Electrical Underfloor Heating

Please consult the manufacturers to make sure their system is compatible with our flooring.  Mesh/Wire systems must be bedded into a base coat of reinforced fibre smoothing compound to cover the wires or mesh. Then a second coat of primer and reinforced fibre smoothing compound should be applied as a finish coat. This is applicable for both concrete and timber construction subfloors.

For underfloor heating pipes set into concrete

Prime surface before applying a compatible smoothing compound to a minimum of 3mm.