The roof window is operated with a handle on the bottom sash. The ventilation flap on the top sash allows fresh air to enter the room through a dust and insect filter. The windows comes as either wooden windows or PU (polyurethane moulded around a core of thermally modified timber). The exterior of the frame and sash is metal-clad. The window is equipped with an insulating glass unit. The windows are available as manual operation or as remote operation (electric or solar).

For a list of technical properties see the local sites to find information similar to for example https://info.velux.be/nl-be/technisch-dossier or find the Declaration of Performance at https://www.velux.com/ce-marking.

Selected properties, background ventilation

Selected properties, geometric area

Valid for both manual and remote (electric/solar) operation