Extruded polystyrene panel URSA XPS NVII L in compliance with EN 13164, smooth surfaces with leather, hinged edges on all sides, with the following characteristics: width 600 mm, length 1250 mm, thickness 50,60,80,100, 120, 140, 160, 180, 200 mm; reaction to fire Euroclass E; thermal conductivity λD 0,033 W/mK and thermal resistance RD 1.50, 1.80, 2.30, 2.80, 3.55, 4.05, 4.60, 5.05 and 5.60 m2K/W for 100 mm thickness; short-term compressive strength (for 10% deformation) ≥ 700 kPa and long-term compressive strength (for 2% deformation, after 50 years) of 250 kPa; deformation under load and temperature (40 kPa-70°C) ≤ 5%; long-term water absorption percentage for total immersion (28 days) 0.2÷0.4%; long-term water absorption for diffusion ≤ 3%; water vapour resistance factor µ 100; average percentage value of closed cells ≥ 95 %; dimensional stability (70°C-90%UR) ≤ 5%; resistance to freeze-thaw cycles < 1%; use limit temperature -50/+75 °C; tolerance to thickness -2/+3 mm; specific heat 1.450 J/(Kg K).
