Profile of photovoltaic panels and mounting device in a building structure, including a roof and building structure integrating these elements

This mounting section of photovoltaic panels (2) in a building structure, and in particular a roof defines a base (10) for fixing to an element of said structure, and in particular to the frame (1) of the roof, and a longitudinal leg (22) for supporting at least two adjacent photovoltaic panels (2) .The profile defining on each side of the support leg (22) two longitudinal flow channels (27) oriented in the direction opposite to the base (10).