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spessore_riscaldamento_pavimentoLo thickness, Engaged in air floor heating "Standard" can be schematized as follows:

  • Room to pass plumbing and electrical, About 5 8-cm. Before laying the insulation for underfloor heating systems must be leveled with a "pre-screed", preferably with loose insulating material (cork, perlite, expanded clay, etc.). If there is not enough space, you can opt for a "channels"Passing along the walls, at the same level the radiant system. 
  • + Insulating pipes = From the 3 5,5 cm. This value depends on how much insulation is placed under the pipe; this thickness is given by the dispersions that there are from the floor down (local open, closed cellar, embankment, heated room)
  • Screed, Which can bind by 3 cm, with self-leveling systems type quick-drying, up to 4,5 cm for traditional solutions. In dry systems, the floor can be placed on the system, dry. 
  • FinishingOn average by 0,8 to 3 cm (tiles, parquet, terracotta). 

riscaldamento_pavimento_parquetA study commissioned by the Eu-Ray, shows that the energy saving that can be obtained from a system of floor heating, Ranges from a 8% up to a 30%.

And 'well known that this type of system is much more efficient but now we have confirmation.

The published study was conducted by the University of Copenhagen (DK) and Padua.

This study compared three different buildings (a detached house, an office and a factory) located in three different areas (Venice, Brussels and Stockholm), comparing the energy and emissions Co2 depending on the use of radiators or floor heating.

The results clearly demonstrate that l 'underfloor heating saves dall'8 to 30%. More details are available at

The laying of the joints in the floor systemsThe expansion joints have the function of absorb thermal expansion or shrinkage of the concrete.

Their implementation is essential for the floors of environments that exceed 40mq surface or 8 m in length.

These are obtained by making a cut of the support layer until the insulation and filling it with plastic material (eg, polyurethane foam).

To avoid localized phenomena of cracking is recommended the realization of contraction joints in correspondence of jambs e thresholds of internal doors: in this case the cut is to be practiced at a depth not exceeding one third of the thickness of the screed paying attention to the placement of the heating tubes.

Radiant floor screed

Composition and screed cover 

{Snippet: The description} screed must be sufficiently rigid to withstand without deformation of the static and dynamic loads it is subjected: to this end, in addition to a good compactness, it must have the right thickness. {/ snippet: description}

In residential construction, for plants floor heating with pipes embedded in the backing layer above the minimum nominal thickness of the tubes is 45 mm: for smaller thicknesses follow the regulations.

In the preparation of the dough use the appropriate flow improver to reduce the water content and as a final effect of the quantity of air in the layer: the thermal conductivity of the substrate is improved. 

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.

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

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