URSA XPS NIII I extruded polystyrene panel in compliance with EN 13164, smooth surfaces with leather, straight edges on all sides, with the following characteristics: width 600 mm, length 1250 mm, thickness 30, 40, 50,60, 80 and 100 mm; reaction to fire Euroclass E; thermal conductivity λD 0,035 W/mK and thermal resistance RD 0.90, 1.25, 1.55, 1.80, 2.30 and 3.10 m2K/W for thickness 100 mm; short-term compressive strength (for 10% deformation) ≥ 300 kPa and long-term compressive strength (for 2% deformation, after 50 years) of 130 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%; water vapour resistance factor µ 50; average percentage value of closed cells ≥ 95 %; dimensional stability (70°C-90%UR) ≤ 5%; frost thaw cycle resistance <1%; use limit temperature -50/+75°C; tolerance on thickness -2/+3 mm; specific heat 1.450 J/(Kg K).
