The quality requirements for ventilation sashes are particularly high for those installed in roofs. WICTEC 50 meets these requirements and delivers a delicate appearance with minimal overlapping of the glass levels. Minimised profile widths, concealed hinges with 90º opening angle and the option of large sash formats offer extensive freedom of design. Thanks to the large ventilation cross sections, the WICTEC 50 skylight is also ideal for use as a natural smoke and heat exhaust ventilator.