Expanded polystyrene (EPS) and extruded polystyrene (XPS) are both made from the same raw material, but where they differ is ...

Insulation boards can be a great solution for insulating roofs, floors and walls, with an array of options. Confused by the difference between PIR and PUR, or EPS and XPS? Read on to find out the ...

In his guide, he details the difference between XPS (expanded polystyrene) and EPS (extruded polystyrene) and how each product’s closed cell and open cell nature affects the final board.