acoustic system Bulgaria

...Technical Information: Thermal insulation coefficient - U value Uw up to 0.914 W/m2K (depending on configuration, dimensions, and type of glass) Maximum glazing thickness: 36 mm Acoustic insulation coefficient of up to Rw = 37 (-1;-2) dB Sections: frame – 55 mm, sash – 63 mm Length of polyamide bar - 24 mm Results from tests: Wind load resistance (according to EN 12210:2003): Class C2 Water tightness (according to EN 12208:2003): Class 9A and 7B Air permeability (according to EN 12207:2003): Class 4 Finishes: * Bicolor option * RAL colors * Wood imitation paint...