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Floor insulation

The high resistance to compression and the excellent damp-resistance properties of STYRISOL® makes it ideally suited as insulation under different flooring types.

Installation UNDER the concrete
STYRISOL® insulation boards are placed directly on the flat and stabilised foundation. A PE-foil needs to be put above the insulation to prevent the mortar from getting between the joints of the boards (creates cold bridges).

Installation ABOVE the concrete
STYRISOL® insulation boards are placed on a smooth concrete surface. We suggest that a water vapour barrier is placed between the boards and the concrete to avoid cold bridges.

Attachment TO the concrete
It is recommended that the insulation is fixed mechanically to the concrete. Underfloor heating STYRISOL® insulation boards can be used in all standard underfloor heating systems.