NOVELTY - The device has a rail (3) provided on a top portion of support units that supports a roof covering panel e.g. solar collection panel (2). The rail is provided on a bottom portion of a fixation units (7) fixed to a roof element (8). The rail has blocking units (20) for blocking a protection film (21) of the roof, where the blocking units comprise a male portion (22) e.g. shape memory rod, complementary formed with a female portion (23) e.g. groove, to cooperate with end of the film by fitting. The end of the film is blocked between the male portion and the female portion.    USE - Device for supporting a covering panel e.g. plate and solar collection panel, to cover a roof (claimed) of a building.    ADVANTAGE - The configuration of the device receives the covering panel of the roof that is directly fixed to a framework, and ensures optimal sealing. The rail supports the covering panel of the roof and receives the protection film forming a screen under the roof, thus avoiding the need for arranging a sealing film on a stringer and below the rail. The configuration of the device avoids installation operation of battens and counter-laths, and saves materials, time and manpower. The configuration of the device permits positioning of width of the screen along a single slope without overlapping or covering the ends of the covering panel to reduce the slope of the roof, such that the slope of the roof can be ranged from 2 percent to authorize flowing or streaming of water, until the slope of the roof is completely vertical from a wall or in front of a frontage along the wall.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a roof comprising a frame work.    DESCRIPTION OF DRAWING(S) - The drawing shows an exploded sectional view of a covering panel supporting device fixed to a framework.    Solar collection panel (2)    Rail (3)    Fixation units (7)    Roof element (8)    Blocking units (20)    Protection film (21)    Male portion (22)    Female portion (23)