Expanded polystyrene (EPS) is a widely used and cost-effective organic white insulation material with very good insulation values. 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.
polystyrene is delivered in granulate form. With the help of steam, it is pre-foamed at 90°C. During this step, it inflates to about 20 to 50 times its original volume. The foamed foam is then pressed into sheets or blocks. depending on the form of the plant, duration and temperature of the process, the properties of the product, e.g. the bulk density, differ.
can be used as insulation in almost all areas:
Image: Example of flat roof insulation with EPS - bauwion
1 Insulation
2 Roof cover
3 Exterior wall
Source: bauwion.de
