Roof window comprising a frame with an interface unit

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,
• an interface unit being provided to interact with auxiliary equipment and/or other components of the roof window in an assembled condition of the frame,
• characterised in that
• the interface unit comprises a top interface element and two side interface elements configured to be received in a receiving structure comprising an interface unit groove in an exterior side of the top frame member and two side frame members, said exterior side being a side of a roof window in a mounted condition facing an outdoors or external side of a building, that
• each interface element comprises a base portion with an anchor section, said anchor section being configured to be received in the interface unit groove in the exterior side of the top frame member and two side members, and in that
• each interface element is provided as a two-component element provided by co-extrusion or co-moulding of two or more different materials, wherein at least a sealing portion has different properties than at least the base portion,
• wherein the interface unit forms part of an exterior sealing plane relative to the sash,
• wherein the exterior sealing plane is provided by the top interface element at the top frame member and the top sash member and the two side interface elements at the two side frame members and the two side sash members, and
• wherein each interface element comprises an inner leg and an outer leg, which inner leg and outer leg extend towards the exterior from the base portion, and each interface element further includes a flange and a sealing portion.