Following our acquisition by SOPREMA, we are excited to introduce Celotex XPS (extruded polystyrene), a rigid foam insulation board designed to provide thermal insulation and compressive strength ...

What is it? Celotex’s RS5000 boards were the primary insulation material for Grenfell Tower. The boards are made from a combustible plastic called ‘polyisocyanurate’, which lets off toxic gases ...