The dimensions of the SOPRA XP-20 are 2x24x96 inches. Butt Edge A rigid board of thermal insulation composed of extruded polystyrene is called Extruded Polystyrene Rigid Insulation. The substance is made of closed-cell foam. On the inside of foundation walls and for SOPREMA above-grade wall systems, it serves primarily as thermal insulation. In accordance with Type 3 CAN/ULC S701.1.
