Insulation panel in plastic (EPS) of the Neopor® type, reinforced and continuously co-sintered with two steel sheets, designed for the construction of micro-ventilated roofs with a high level of thermal insulation. Ideal for energy efficiency upgrades, it allows compliance with technical standards for reducing building energy consumption. The Ventilplus® panel enables the safe installation in a single solution of the thermal insulation layer and the supporting structures required for fixing the roofing system.