Wooden windows IV90

The inward opening wooden window system IV90 is modern and environmentally friendly.

The thick wooden profile increases the durability and stability of the structure.

This system provides excellent sound insulation properties, resistance to rain and wind load, easy use and maintenance of the window.

• Frame and sash profiles are 90mm wide and 78 mm thick.
• The bottom of the frame contains cuts 30 mm for easy installation of internal and external windowsills.
• Thermal conductivity coefficient of the window UW=0.9 W/m2K(calculated according to DIN EN ISO 10077-1 for a pine wood window with dimensions 1.23 x 1.48m).
• Sound insulation with a standard 50mm insulating glass unit is 34 dB, which means reduction of the noise level by around 2500 times. By choosing special sound-suppressing insulating glass units, it is possible to achieve the sound insulation of up to 50 dB.
• The finish system of wooden windows produced by the Finnish company TEKNOS offers environmentally friendly water-based varnishes and paints.
• Siegenia and ROTO fittings allow opening, tilting or locking the window in the microventilation (winter ventilation) position.