ROOF WINDOW WITH AN OPERATING ASSEMBLY

In the roof window (1), an operating assembly (5) comprises a sash fitting (55), a spindle part (52) with a spindle (521) connected to a socket fitting (51) via a nut part (53), the sash fitting (55) being connected to the bottom sash member (34) and the socket fitting (51) being connected to the bottom frame member (24) in a mounted condition of the operating assembly such that upon rotation of the spindle part (52) relative to the nut part (53), the bottom sash member (34) is moved relative to the bottom frame member (24). In a supply condition of the roof window (1), the sash fitting (55) is connected to the bottom sash member (34) of the roof window (1) whereas the spindle part (52) with the nut part (53) and the socket fitting (51) are provided separately from the roof window (1).