XPS (extruded polystyrene) insulation is a rigid insulation material that can be used for many types of insulation.
XPS insulation is used for insulating interior walls with plastering directly onto the waffle-patterned XPS, for insulating floors before screeding, for roof insulation, and for insulating buried walls due to the rigidity of the insulation
All you have to do now is choose your required thicknesses and quantities!