It is possible to install Karndean products over floors incorporating underfloor heating, but these must be insulated to ensure the surface temperature throughout the installation does not exceed 80°F (27°C). The heating must be switched off 48 hours before, during, and for 48 hours following the installation, then gradually increase to working temperature (typically 5°F/hr or 3°C/hr). Please note, all of our adhesives are approved for radiant heat.
Electric Underfloor Heating
Consult underfloor heating manufacturer and make sure the system is compatible with Karndean Designflooring. Mesh/wire systems must be bedded in to a base coat of reinforced fiber smoothing compound to cover the mesh or wires. Then a second coat of primer and reinforced fiber smoothing compound needs to be applied as a finish coat. This is applicable for both concrete and timber construction.
For underfloor heating pipes set into concrete, prime surface before applying a compatible smoothing compound to a minimum of 1/8" (3mm).