Today the modern living is always connected with an underfloor heating. The pleasant comfortable climate and energy-saving operation are very popular among housebuilders and interior renovators. In combination with FEEL WOOD solid wood floor you will create a unique microclimate.


For installation, it is recommended that the entire floor covering is Opens internal link in current windowglued down with specialist glue for wooden floors. As a rule of thumb: lightweight and unstable wood species are not recommended for laying over under-floor heating. Products with thicknesses 15 mm and 21 mm are permitted.

We recommend the following wood species for the installation on underfloor heating according to the wood species up to a width of 148 mm: Oak, Ash, Siberian Larch, Canadian Maple, Spruce, Pine and Walnut. In any case, the precondition of the subfloor should be examined in accordance with DIN 18356.

FEEL WOOD solid wooden flooring is delivered with moisture content of 9% (+/-2%). Ash is the exception, which is produced with a moisture content of maximum 10%. This is the ideal moisture content for a room heated to 20 °C with a relative air moisture level of 50 to 65%. With this air moisture level, we can guarantee a good level of compliance. If these levels are maintained, substantial cracks will not appear.

When under-floor heating is installed the wood become even drier during periods where the heating is on, as a result of thermal conductivity. In order to avoid damage to the floor covering, the installation instructions must be carefully followed when installing over under-floor heating.

The instructions for installing FEEL WOOD solid wooden flooring on top of under-floor heating are as follows:
•     The maximum temperature on the surface of the flooring should be 26⁰С
•     The maximum moisture content of the solid wood boards should be 9 % (+/-2 %)
•     All materials (wood, glue, cork sound proofing etc.) together must have the thermal resistance of maximum 0,15 m² K/W

CAUTION: Our clip flooring together with cork underlay is not suitable for use with under-floor heating.



Wood is a hygroscopic material and reacts to its environment. Wood takes in and gives off air moisture, and because of this, the dimensions of the floor boards can change. 

This can cause discrepancies in both the length and width of the boards, in the width this can happen whether the cut is tangential or radial (horizontal or vertical growth rings).
The potential for swelling or shrinking in the length is negligible, in the width it's extent depends on the type of wood. If the moisture content sinks, the wood will shrink and the joints will open. For a reduction in moisture content of 5% and an average swelling and shrinking value of 0,25% the result will be 1,25%. For a board width of 128 mm therefore, 1,25% will result in approx. 1,6 mm opening of the joints.

These are average values and depend naturally on the species of wood, the growth area, and on the annual growth rings of that particular board (outer or core area) and can therefore vary.