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The SOPRA-XPSTM is a rigid, closed-cell extruded polystyrene foam insulation board used for thermal insulation in residential and commercial buildings and civil engineering structures. This versatile insulation product can be used in a variety of applications such as foundation systems, walls, parking decks and inverted roof systems, including plaza decks and green roofs. The insulation board is manually installed in one or more layers flat on or against the surface being insulated. All the products of the line have an initial and long-term RSI (thermal performance) equal to 0.8805 m2KW. Its high density and closed cell structure give the SOPRA-XPSTM one of the highest compressive strengths on the market, and make it exceptionally resistant to water and moisture. It is also resistant to climatic variations and freeze-thaw cycles. The products formulation limits the formation of mould and the proliferation of bacteria, even in the presence of moisture. In addition, the SOPRA-XPSTM is made of up to 70% recycled and recovered content, as well as a new HFO-type blowing agent with a low global warming potential (1 kg CO2 eq). The SOPRA-XPSTM is GREENGUARD GOLD certified, which demonstrates that the product line complies with very strict criteria and considers the most demanding safety factors regarding volatile organic compound (VOC) emissions. The SOPRA-XPSTM insulation boards comply with the CANULC-S701.1 and ASTM C578 standards in their respective classifications. The SOPRA-XPSTM is sold in grey boards measuring 8 feet long by 2 or 4 feet wide, and are available in several thicknesses, with grooved, shiplap or butt edges.