Abstract: A photovoltaic panel includes an assembly having an array of photovoltaic cells interposed and laminated between two layers of encapsulating material, a glass sheet coupled to a front surface adapted to be exposed of the assembly, and a sheet of an electrically insulating material coupled to the back surface of the assembly, wherein the glass sheet includes at least one decoration obtained by a process carried out directly on the surface of the glass sheet and/or within the thickness of the glass sheet.

Abstract: Modular elements for roofs of buildings, comprising curved channel tiles (2), disposed in partially superposed mutually predefined position on the roof support surface, such as to form side by side rows extending substantially along the lines of maximum roof slope with their concavity facing upwards, and curved cover tiles (20, 44, 84) disposed with their concavity facing downwards in partially superposed condition to form rows straddling pairs of side by side rows of channel tiles, characterised in that the channel tile (2) presents the following characteristics:—it has an upwardly open longitudinal cavity bounded by two raised side portions (4),—said raised portions (4) are provided with downwardly facing legs (6),—said legs (6) are provided lowerly with feet (8) fixable to the feet of a side by side channel tile and, simultaneously therewith, to an underlying roofing plane,—its upstream transverse edge is provided with a rib on which the overlying channel tile pertaining to the same row (16) rests,—when se

Abstract: A modular photovoltaic element for building roofs comprising: a lower hollow structural part of plastic material, an upper convex cover element of material transparent to sunlight and fixed to said hollow part, at least one photovoltaic cell mounted on a support and housed in a cavity defined by said hollow part and said convex cover element, an integrated current for controlling the operation of said element, a compartment which is separate from the cavity housing said photovoltaic cell, and which houses means for electrical connection to the adjacent modular element of the same row, partially superposed to cover said compartment, connection cables joined to watertight connectors positioned on the surmounting portions of adjacent hollow parts of one and the same row, said connectors being connected to said photovoltaic cell and to said integrated circuit, first mechanical means for connecting said cover element to said hollow part, second mechanical means for connecting said hollow part to the hollow part