XPS (extruded polystyrene) is an advanced material widely used in construction engineering throughout the world to insulate foundations, basements, inverted roofs and other locations continuously exposed to water – as well as in the advertising sector. The material features a closed-cell uniform structure within its entire mass, which ensures long-term preservation of insulation properties. XPS has a perfect heat-transfer coefficient λD. The boards are foamed with carbon dioxide, which makes them environmentally friendly. We offer Styrodur boards manufactured by BASF in green, five densities and with various thickness.