Floating floor with rock wool insulation on a concrete ceiling

So-called. floating floor is the most commonly used solution when finishing a raw concrete ceiling. Floating floor is a concrete screed about a thickness of 5 Cm, made on insulating material – for example. on slabs of hydrophobic rock wool spread over the entire surface of the room.

In order for such a floor to provide effective thermal and acoustic insulation between floors, the concrete screed on the insulating material must not have direct contact with the ceiling and walls. For this reason, a strip of perimeter insulation with a height reaching the upper level of the concrete screed should be installed along the entire perimeter of the walls..

In damp rooms, floating floors should have waterproof insulation.