Transparent substrate bearing a multilayer solar-control stack comprising three functional layers based on a material reflecting infrared radiation and four dielectric coatings such that each functional layer is surrounded by dielectric coatings, characterized in that the geometrical thickness of the second functional layer starting from the substrate is between 13 and 15 nm and is greater than the geometrical thickness of the first functional layer and the geometrical thickness of the third functional layer is greater than the geometrical thickness of the first functional layer, in that the ratio of the optical thickness of the transparent dielectric coating disposed between the second and the third functional layers, starting from the substrate, to the optical thickness of the final transparent dielectric coating disposed on top of the last functional layer is between 2.0 and 3.0, and in that the ratio of the optical thickness of the transparent dielectric coating disposed between the second and the third functional layers to the optical thickness of the transparent dielectric coating disposed between the first and the second functional layers is between 0.6 and 0.9 and excluding, on the one hand, a coating comprising the following succession of layers starting from the substrate: a layer of silicon nitride whose thickness is between 8.4 and 14 nm; a layer of zinc oxide whose thickness is between 8.2 and 13.8 nm; a first layer of silver whose thickness is between 7.1 and 11.9 nm topped by a barrier layer of nickel-chromium oxide whose thickness is between 2.2 and 3.8 nm; a layer of titanium oxide whose thickness is between 2.2 and 3.8 nm; a layer of zinc-tin oxide whose thickness is between 43.5 and 73 nm; a layer of zinc oxide whose thickness is between 12 and 20 nm; a second layer of silver whose thickness is between 9.6 and 16 nm topped by a barrier layer of nickel-chromium oxide whose thickness is between 2.2 and 3.8 nm; a layer of silicon nitride whose thickness is between 8.3 and 13.9 nm; a layer of tin oxide whose thickness is between 27.7 and 46.3 nm; a layer of zinc oxide whose thickness is between 15 and 25 nm; a third layer of silver whose thickness is between 10 and 16.8 nm topped by a barrier layer of nickel-chromium oxide whose thickness is between 2.2 and 3.8 nm; a layer of tin oxide whose thickness is between 11.2 and 18.8 nm; a layer of silicon nitride whose thickness is between 12.8 and 21.4 nm and, on the other hand, a coating comprising the following succession of layers starting from the substrate: a first dielectric coating formed by a layer of zinc stannate whose thickness is 77.9 nm, a first layer of silver whose thickness is 11.2 nm, a layer of titanium whose thickness is 1 nm, a layer of titanium oxide whose thickness is 1.4 nm, a second dielectric coating composed of two layers of mixed zinc-tin oxide whose total optical thickness is 156.4 nm, the first layer of mixed oxide comprising a zinc/tin ratio: 52/48 and the second layer of mixed oxide of the second dielectric coating having a geometrical thickness of 18.4 nm and comprising a zinc/tin ratio: 90/10, a second layer of silver whose thickness is 14.3 nm, a layer of titanium whose thickness is 0.8 nm, a layer of titanium oxide whose thickness is 1.4 nm, a third dielectric coating composed of two layers of mixed zinc-tin oxide whose total optical thickness is 135.2 nm, the first layer of mixed oxide comprising a zinc/tin ratio: 52/48 and the second layer of mixed oxide of the second dielectric coating having a geometrical thickness of 18.4 nm and comprising a zinc/tin ratio: 90/10, a third layer of silver whose thickness is 15.0 nm, a layer of titanium whose thickness is 0.9 nm, a layer of titanium oxide whose thickness is 1.4 nm and a fourth dielectric coating composed of two layers of mixed zinc-tin oxide whose total optical thickness is 60.5 nm, the first layer of mixed oxide having a geometrical thickness of 9.2 nm and comprising a zinc/tin ratio: 90/10 and the second layer of mixed oxide of the second dielectric coating comprising a zinc/tin ratio: 52/48.