Underfloor heating is considered a comfortable heating variant. No disturbing radiators as well as a pleasant and uniform heat effect are the great advantages. However, if the underfloor heating is used at the same time as a parquet floor, problems may arise. With the observance of important hints, it is possible to prevent the disadvantages and to enjoy the advantages of underfloor heating without restrictions. Professional advice is useful to find out which parquet is suitable for underfloor heating.
In order for parquet and underfloor heating to be well compatible with each other, it is important to choose the right parquet floor and the type of installation. You should consider all factors before buying parquet. The adhesive used and the correct temperature setting of the underfloor heating also play an important role. In order to ensure that the parquet is well used in underfloor heating and that no negative effects occur, the expert’s advice is required. The professional knows the prerequisites: What is important for laying the parquet when underfloor heating is planned? What should be considered for laying the floorboards so that the underfloor heating can work properly?
The best parquet for underfloor heating
Parquet and underfloor heating can be easily tolerated if important points are clarified in advance. Underfloor heating must be a hot water heater. Electric heating systems are not suitable. The second question concerns the choice of the right parquet as flooring. First of all, the type of wood is decisive. Wood generally conducts heat slowly. However, with a higher raw wood density, the heat conduction can be improved. The woods with the highest density include all tropical woods. This includes, for example, the well-known teak wood, but jatoba, merbau and wenge are also well suited. If tropical wood is used for parquet flooring, the wood should come from sustainable forestry. Certified quality seals such as FSC and PEFC make the decision easier.
For local woods, there are also types of wood, which are the right choice for parquet with underfloor heating. Wood species with a high density of raw wood include oak, pear tree, walnut and cherry tree. These types of wood have a favorable spring and shrinkage behaviour. Coniferous woods such as fir or spruce, on the other hand, are not recommended. Caution should also be exercised with beech, as beech wood reacts very strongly to temperature fluctuations. Dry room air is also a risk factor for beech parquet. The installation of underfloor heating leads to the negative effects being amplified. In the case of beech parquet in combination with a floor heating system on foot, there are inevitably large joints.
How thick should the parquet be with underfloor heating?
The thicker the parquet, the longer the surface heats up. Parquet is available in different thicknesses and finishes. In order for the wood to fit the underfloor heating and to achieve good heating performances, a thinner parquet is much better. With an 8 millimeter thick mosaic parquet, very good results can be achieved, while a 22 millimeter thick bar parquet is rather less suitable.
When the wood surface heats slowly, some owners of underfloor heating systems resort to the controller and set the flow temperature higher. This can lead to damage to the wood, because the water temperature of the heating must be adapted to the special properties of wood and parquet.
Parquet for underfloor heating: The choice of the right type of installation
If parquet is to be laid on an underfloor heating system, the fully glued installation must always be applied. The floating installation has disadvantages. A thin layer of air often develops between the balancing pad and the parquet during floating installation. Small bumps or bulges of the soil are the cause. This leads to an increase in heat transfer resistance. Heating the surface takes longer. These risks and disadvantages do not exist with full bonding. Therefore, parquet should always be glued completely by a specialist company in case of underfloor heating. With the glued parquet, the heat of the underfloor heating passes directly into the flooring.
The joint formation for parquet with underfloor heating
Wood is a natural material that always works. This effect can be enhanced by the use of underfloor heating. The wood dries out and joints can form. By choosing a suitable parquet, this risk can be minimized. In the case of a prefabricated parquet, the risk of jointing is lower. Finished parquet consists of several layers, which are glued together. This makes the parquet more stable and retains the shape better than solid parquet.
The right adhesive for the full-surface bonding of parquet in underfloor heating
If the parquet is glued, the temperature must not be too high. The parquet adhesive only holds well if the prescribed temperature is not exceeded. The professional for parquet laying knows the limit values and points out that the interaction between parquet and underfloor heating does not endanger.
The choice of temperature for underfloor heating
In order to prevent damage to the parquet or the adhesive connection, the floor temperature must be monitored. A predetermined maximum value must not be exceeded. The decisive factor is the flow temperature of the underfloor heating system. It must be set in such a way that the specified maximum value is not exceeded. The parquet layer is the competent contact person, he is very familiar with the temperature conditions. If the floor gets too warm, irreversible damage can occur during the parquet. The expert is also the right addressee for other questions relating to the parquet flooring. For example, it informs about the choice of the appropriate parquet for underfloor heating or about current parquet prices.
Humidity, underfloor heating and parquet
With underfloor heating, the indoor climate is better in the heating period than with conventional heating. Nevertheless, there may be dry indoor air. Together with the thermal effect of the underfloor heating, which is directly in contact with the parquet, impairments of the wood are possible. Regular ventilation and good parquet care help to avoid damage. A humidifier may be useful for improving the indoor climate.