Insulating glazing

Abstract

The invention relates to double glazing comprising at least one glass sheet that has a set of low-emission layers on each side, one side being coated with layers which are produced using sputtering and which include at least one metal layer that reflects infrared radiation. The other side of said at least one glass sheet comprises one or more metal oxide layers that are deposited using gas phase pyrolysis. The disclosed glazing has a minimum light transmittance of 60 percent (with 4 mm thick clear glass sheets).

1 . A double glazing comprising at least one glass sheet which has, on each of its faces, a set of low-emissivity layers, one face being coated with layers produced by sputtering and comprising at least one infrared-reflecting metal layer, and the other face comprising one or more layers of metal oxides deposited by gas pyrolysis, this glazing having a light transmission which is not less than 60% (for thicknesses of the clear glass sheets of 4 mm).