Technical Specifications Result Reference Heat Conduction Coefficient Uf: 1.9 W / m2K (Ug: 1.4 W / m2K) ISO 10077-2 Air Permeability Class 4 (600 Pa) EN 1026 EN 12207 Water Impermeability Class 9A (600 Pa) EN 1027 EN 12208 Wind Resistance C3 / B3 EN 12210 EN 12211 Technicial Specifications: Possibility to keep an acceptable level scale and provide sound insulation in the indoor area originating from the external environment Sound Insulation: 47 dB