Expansion belts are used for physical separation of lightweight skeletal structure from the general structure of the building. They are also used as a dilatation material for plasterboard layer from the suspended ceiling skeleton in rooms with high noise levels. They can also be used as dilatation (horizontal / vertical) of walls erected with the use of traditional materials: brick, block, block. Such belts are also used as an intermediate layer between wooden joists and floor in wooden buildings. Dilatation belts are used for sound insulation of skeletal walls, floors, ceiling and adjacent walls we use a dilatation belt according to the width of the steel profile (example: K-Fonik GK 75 expansion belt = 50mm wide profile + 12.5mm gypsum board cardboard). Other examples of the use of expansion joints are:

• vibro-isolating spacers in machine and device housings,
• envelope layers for floating floors,
• dilatation layers for the string in the prefabricated stair cast poured on site.