The s: 203E louvre window has been specifically designed to meet the high aesthetic demands of historic and architecturally sophisticated buildings. Through innovative installation methods, the visible metal components have been reduced by up to 70%. The window is installed deeper into the roof, allowing the upper tile to cover the cover plate. The lower cover plate is concealed by a row of tiles spaced above and mechanically secured. The discreetly integrated 24V motors enable precise, stepless opening and closing of the louvres. The modular design of the window allows for the integration of additional features, such as manual switches, wind and rain detectors, as well as fully automated controls with interior and exterior temperature monitoring, including anti-trap protection. Further options include shading, blackout blinds, and insect screens. The optional LED lighting also creates an ambient atmosphere, enhancing the living space.