MATERIAL COMPRISING A SUBSTRATE PROVIDED WITH A STACK OF THIN LAYERS HAVING THERMAL PROPERTIES

The invention concerns a material comprising a transparent substrate coated on one face with a stack of thin layers comprising in succession, starting from said face, an alternating arrangement of three silver-based functional metallic layers Ag1, Ag2 and Ag3 and of four dielectric coatings M1, M2, M3 and M4, each dielectric coating comprising one dielectric layer or a dielectric assembly of layers, such that each functional metallic layer is disposed between two dielectric coatings. In the stacks described, the sum of the physical thicknesses of the four dielectric coatings (M1, M2, M3 and M4) is less than or equal to 210.0 nm. An advantage of the invention is that it improves the deposition yield of the stacks having three functional metallic layers.