Roof window comprising a frame with receiving structures

A roof window comprising a frame, a sash, and a pane, in which the frame comprises a set of frame members including a top frame member, two side frame members and a bottom frame member and the sash comprises a set of sash members including a top sash member, two side sash members and a bottom sash member,

• the roof window furthermore comprising a plurality of mounting brackets and an insulating frame, wherein
• each frame member comprises a plurality of receiving structures at an interior, exterior, inner and/or outer side of the respective frame member, each said receiving structure being configured to interact with auxiliary equipment in an assembled condition of the frame,
• that a first receiving structure comprises a first outer groove in an outer side of one frame member of the set of frame members,
• that said first outer groove is configured to interact with a protrusion on a piece of the insulating frame,
• that a second receiving structure comprises a second outer groove in an outer side of at least the side frame members, configured to interact with engagement means of a mounting bracket, and
• that the engagement means of the mounting bracket engage with the second outer groove and engage with the first outer groove, wherein (i) the first outer groove is spaced from the second outer groove in a height direction of the roof window.