Unlike sintered expanded polystyrene (EPS), Extruded polystyrene (XPS) is used when the required operating conditions are more burdensome from the point of view of humidity, compressive strength and versatility, because, given the same conditions of use, effectiveness in cases where XPS is implemented is greater. In fact, “extruded” means that its closed cell structure is homogeneous and stable, which makes it impossible for water to be absorbed and allows it to withstand high compressive strength. It has excellent thermal conductivity, very high water vapor resistance, low specific weight and ease of processing.

The XPS is finding a very heterogeneous building application to insulate buildings. It is used in damp environments or in contact with the ground, in situations of high compressive stress, in the creation of panels, flat and inverse roofs. It can also be used alone or in combination with plasterboard, wooden panels or plastic or metal laminates to insulate even floors, walls or ceilings.