Opus is a variation of Norwegian Classic window with a 180 degree sash turn. The window sash fully turns around its axis in the horizontal plane, making it easy to service the window during maintenance. The availability of the standard ventilation mode is due to the built-in sash fixing mode, which can be used to block or restrict the window opening. Such a mechanism is absolutely safe and is especially relevant if there are small children in the house.

The design is a single-frame model of a reversible window with a width of 95mm. A triple-glazed unit with ES glass and a Super Spacer are installed in the sash.

Opus is equipped with original hardware from the Norwegian company Spilka.

Opus is an analogue of the Classic model, it is distinguished by "hidden" hardware installed between the sash and the frame, remaining "invisible" during maintenance.

Glazing Triple glazed insulation unit 4i-12ss-4-12ss-4
U-value When using triple glazed unit with energy saving glass, Super Spacer and inert gas: U= 1,0 W/м²k
Sound insulation Ra = 32 dB
Materials Oak, Northern Pine

Compatible glazed units: