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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 Twentyfour sq.m. 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.

The section of an expansion jointIt 'important that these joints are made when the screed is still plastic and are sealed only after the start of the heating.

The joints can be crossed only by connecting tubes which, at the crossing must be protected with hoses insulating minimum length 0,3 m.

The project provided, must be complete with a diagram showing the position joints.

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

Rossato Group Srl
Headquarters: Via del Murillo, km 3.500 - 04013 Sermoneta LT - Italy
registered address via Migliara 49, No. 9 - 04016 Sabaudia LT - Italy
Cap. Soc. € 119.900,00 iv - n. LT-107494 REA - VAT-CF IT01745300598

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