Insulation in the floor area can take on various tasks. It is used to prevent heat loss and for impact sound insulation, and at the same time can provide height compensation for unevenness in the ground.
Insulation in the floor area is necessary for two reasons:
1. As thermal insulation to minimise heating energy losses.
Insulation is applied either under or on the floor slab. If the insulation is located on the floor slab, it must be protected against rising damp. This is usually done by means of a waterproofing membrane on the reinforced concrete floor slab.
2. As sound and impact sound insulation.
The impact sound insulation is always installed below screeds and must therefore withstand the loads permanently. (dead weight of the screed as well as traffic loads due to later use) In wet rooms, the insulation must also be sealed.
During processing, care must be taken to ensure that the insulation layers lie over the entire surface. Cavities must be avoided or eliminated by suitable means. They are each to be laid closely jointed, and in several layers the joints are to be offset against each other.
There is a wide variety of insulation materials to choose from. Boards made of EPS and wood fibre can be shipped for almost all areas, insulation boards made of rock wool or glass wool only need a low insulation layer thickness and have a low dead weight.
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