A fill made of EPS compensates for unevenness in the substrate and provides thermal and/or impact sound insulation.
Expanded polystyrene (EPS) is a widely used and cost-effective organic white insulation material with very good insulation values in the construction industry. Polystyrene is made from styrene. This is obtained from crude oil and inflated into polystyrene with propellants. Since expanded polystyrene (EPS) is more open-pored than extruded polystyrene (XPS), it absorbs more water and can only be used as flat roof insulation under the waterproofing. EPS can be processed very easily on site.
Source: bauwion.de
Nowadays, fills must be used in bound form. They are usually made of tread-resistant, fine-grained materials that are mixed with an epoxy resin binder and mixed with water. After hardening, this creates a levelling layer that can improve the insulating effect of the ceiling due to its air pockets created by heating and inflating.
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