Abstract: A photovoltaic assembly with integrated mounting structure is disclosed, which comprises a back sheet made of a single sheet and accommodating at least one solar module in a central portion of the back sheet, wherein the back sheet comprises a first lateral portion and a second lateral portion extending along two opposite sides of the central portion and forming a predetermined angle with respect to the central portion, wherein the first and second lateral portions respectively comprise a first base portion and a second base portion adapted to lay on a roof surface. The back sheet is therefore both a supporting sheet for the solar modules and a mounting structure in a single body.