What do you need to know before you buy the parquets?
Heating resistance is an important characteristic of wood especially if the parquet is placed onto the floor heating. Lower value of resistance factor implies that the parquet is applicable for montage onto the floor with hot water floor heating. 
hardwood floooring
We advise you to choose thinner types of parquet (two-layer). In case you want to place the parquet onto the electric floor heating, search for advice from an expert.
• Floor coverings belong to the group of the most loaded building elements so be careful when you choose them.
• Parquet is the only material which can be renewed in order to look like a new floor covering.
• Parquet characteristics are different and they depend on the type of the wood of which it is made:
- Hardness: in the rooms which are more loaded place the parquet made of solid wood. Larger number value means greater solidity, greater resistance to mechanical damages and less wearing of the surface (check the solidity table).
• Colour: wood of the same species can be of different colour. The colour of the parquet is chosen on the samples of bigger size. In time, wood can change its colour. The change of colour is more intensive in the first period right after the montage. Wood is a natural material and there is no guarantee of a complete match between the sample and the parquet. More info about the change and intensity of colour ask from an expert.
• Quality: the producers mark the quality of the parquet when it comes to aesthetic characteristics, such as knots, textures, the level of resin canals, colour variations, groven bark, etc. Taking into consideration public or internal standards, parquets can be divided into several grades: O, Δ, I, II, A, B, C, D, extra, standard, rustic, VS, exquisit, select, nature, design, structure. These marks stand for the appearanace of the surface and they are not in connection with the quality of the process of the production.
Parquet floor
• Dimensional stability: wood is a hygroscopic material, which means that it adapts itself to the realitive moisture of the air and the moisture of the building construction. Change of the moisture changes the wood in a dimensional way and the wood is deformed. Dimensional stability depends on the kind of the tree. Beech and maple have the lowest dimensional stability and therefore they are not recommended for floor heating and for the rooms with extreme conditions. Unlike the massive, dimensionally stabile parquets are made of more layers (multilayer, two-layer and three-layer). Parquet is the only floor covering which is set into hydroinsulated rooms where the temperature is balanced.
• Heat resistance: heat resistance is a very important wood characteristic especially if the parquet is placed on floor heating. Lower value of heat resistance factor implies that the parquet is adequate for montage on the floor with hot water floor heating. It is advisable to choose thinner kinds of parquets (two-layer). In the case you want to place the parquet on the electric floor heating, consult an expert.
• Surface protection: parquet can be lacquered or oiled. Oiled parquets have a more natural surface appearance. Lacquered parquets can be shiny or lustreless. Oiled and lacquered surfaces can be seen on the samples in the sales department. Lacquered surfaces are more easily maintained, but when it is damaged it has to be grinded and lacquered again. Regular maintaining of oil surfaces is more difficult, however in that way a complete reconstruction is usually not even necessary.
