Characteristics of system: Windows of IV92 system are made of three-ply window timber blanks; Windows are made with installation depth of 92mm (triple glazing); Thermal insulation coefficient - Uw = 0.7 W/m2K; Standard version: glazing unit 4/18Ar/4 Ug=0,5 W/m2K; Soundproofing – 32 dB; High quality furniture produced in the German company “SIEGENIA” is used, providing long and perfect service life for windows; Necessary microclimate – humidity and temperature – is automatically ensured within the facility; There are used eco-friendly water-based paints; the colors are available in RAL catalogue; Decoration of the component from all its sides; Perfect joint of the corners.