Polystyrene Testing

Expanded (EPS) and extruded (XPS) polystyrene are the most widely used thermal insulation materials in façades, roofs and floors. Their performance depends on density and mechanical strength: a board with a lower density than declared loses both thermal resistance and load-bearing capacity.

Testing determines board dimensions and thickness, apparent bulk density, water absorption and compressive strength at 10 % deformation — the parameter used for boards under screeds and protective layers.

Samples are taken from the delivered consignment before installation, since actual thickness and density often differ from the values declared on the label.