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Conditions for installing a floor systemThe installation of radiant floor heating can begin when the'Building envelope was completed and equipped with doors and windows to prevent air infiltration.

Before proceeding, ensure that they are checked the following conditions:

  • internal plaster completed in all environments and well finished up the slab rough;
  • structural height verified for the realization of the floor heating;
  • electrical and plumbing connections are completed, with tubes and pipes encased in a lighter background and level on which to proceed with the installation of the insulation boards;
  • presence of niches in the walls for the collectors, holes in the walls and in the floor slabs for the passage of the connecting tubes in accordance with the wiring of the project.

The raw slabs must be well dry to prevent the withdrawal of the substrate, clear of debris and dust and present a good flatness with gradients within the tolerance limits as per DIN 18202. The limit values ​​of the differences of altitude in mm depending on the distance of the measurement points are:

Distance of measurement points in mt Maximum difference in altitude in mm
1 8
4 12
10 15
15 20


If the insole is resting on the ground or in contact with a humid environment before installing it is advisable to cover the substrate with a waterproof coating against rising moisture according to DIN 18195.

If you want to do the insights on heating in the floor, you can find valuable information at the following links:



Rossato Group Srl
Via del Murillo, km 3.500, 04013 Sermoneta LT - Italy
Share capital € 200.000,00 fully paid up - no. REA LT-107494
VAT-CF IT01745300598

Opening Hours
From Monday to Friday
Morning 8: 30 - 12: 30
Afternoon 13: 30 - 17: 30