The system includes supporting and transverse central profiles, assembled so as to form a rectangular shaped lattices or mesh for the insertion of photovoltaic modules positioned in horizontal or inclined planes.The components of each of said profiles are mutually connected by means of automated snap, consisting of reciprocal joints and smooth or threaded pins, or other suitable automatic devices, which facilitate the rapid assembly.The perimeter of the system is enclosed by supporting and transverse perimetric profiles parallel respectively to said supporting and transverse central profiles.In the corresponding slots, on the perimetric profiles, if necessary, connecting flashings are inserted between the system itself and the remaining portion of the structure on which the system is applied.

Photovoltaic module mounting system designed to allow the assembly and installation of the majority of photovoltaic modules (10) and plate-shaped components on any type of roof in order to obtain a waterproof surface that is able to resist weathering. Said mounting system includes a plurality of elongated components (41,50), each designed to receive and support the adjacent sides of two photovoltaic modules (10) in such a way that each panel extends between at least two of said mounting rails and where each of said elongated components is anchored to the support structure by means of special fastening devices that give the system extreme flexibility and ease of assembly.