NOVELTY - A photovoltaic module comprises a front sheet (2) on outer position with respect to the top surface covering (9) of a building, in a transparent material and associated with at least a first plastic copolymer layer (3); a photovoltaic sheet (5) interposed between the first plastic copolymer layer and a second plastic copolymer layer (6); and a flexible sheet (7) associated to the second plastic copolymer layer. The front sheet comprises a rusticated external surface, so as to be slip-resistant.    USE - As photovoltaic module for the generation of electricity, particularly for the top surface covering of residential and industrial buildings, caravans, recreational vehicles and boats (claimed).    ADVANTAGE - The module ensures high efficiency and high productivity. The module avoids rupture of solar cell. The module is flexible and can therefore be used even on curved infill elements. The module is economically convenient and profitable; is less susceptible to extreme weather than those known, especially so as to avoid breakage due to hail; and limits as much as possible ruptures, due to incompetence of workers while mounting and/or assembling, thereby strengthening the structure of the module itself. The module uses materials which are easily available commercially and by using commonly used materials, the device is economically competitive and easy to assemble. Due to the flexible sheet, the photovoltaic module can be used on flat and curved top surface coverings. With the use of a polyester film coated with PVF, the module is able to provide a grade of rigidity which allows, in addition to a reasonable amount of flexibility of the module, a certain reliability and durability. The photovoltaic module allows production of electrical energy with low costs because of the commercial convenience of solar cells in monocrystalline or polycrystalline. Through the protection and reinforcement layer, the module not only comprises a more uniform structure (compared to the known panels), but also has excellent mechanical strength. The lamina in glass fiber gives rigidity to the structure; and also avoids the use of a metal laminate or even less of the sheet-like element itself, with significant economic benefits. The front layer upper face rusticating makes the surface non-slip, which facilitates movements of workers on the top surface. The ethylene-vinyl acetate layer, interposed between the lower surface of the flexible sheet and the sheet-like element, allows it to indissolubly associate the overlying strata and to be made from a wide range of materials with which the sheet-like element may be composed, so that the user can select the type of panel that best suits his needs and the structural characteristics of the location where the photovoltaic module will be installed. The employment of materials easily available commercially and the usage of common materials make the device economically competitive.    DESCRIPTION OF DRAWING(S) - The figure shows schematic view of photovoltaic module, sectioned by a plane which is normal to the plane defined by the surface covering.    Front sheet (2)    First plastic copolymer layer (3)    Protection and reinforcement layer (4)    Photovoltaic sheet (5)    Second plastic copolymer layer (6)    Flexible sheet (7)    Top surface covering (9)    Additional plastic copolymer layer (10)    Polyester film (11)    Two coating films (12', 12'')    Polyvinylidene fluoride films (22', 22'')