[China Glass Net] The energy-saving coefficient of windows is closely related to glass. At present, in addition to ordinary insulating glass, there are vacuum glass, LOW-E glass and even "three glass", and the windows on the market are generally equipped with ordinary insulating glass. Many consumers are thinking about it: "Sanbo" has come out, should my family upgrade?
If you need to change the glass, you must first understand the characteristics of the various glasses. According to Yan Leiguang, LOW-E glass is coated with one or more oxide films on the surface of the glass, which has the characteristics of heat preservation and heat insulation. The so-called "three glass" is actually a three-layer glass, such as coating on one of the two layers of glass, the insulation and heat insulation characteristics are stronger. Vacuum glass refers to a vacuum between two layers of glass that is less than 1 mm apart. The performance should be good, but it has not yet been put into commercial use. If consumers see vacuum glass on the market, they can basically be considered fake.
Ordinary insulating glass is an air gap layer between two layers of glass, and some of the spacer layer is also filled with an inert gas. The thickness of the glass currently on the market is generally between 4 mm (glass thickness) + 9 mm (air gap thickness) + 4 mm (glass thickness) or 5 mm + 12 mm + 5 mm. The insulation performance of ordinary insulating glass is much better than that of single-layer glass.
Although the thermal and thermal conductivity of glass is also very important, Yan Leiguang said that the choice of glass needs to be determined according to the installable structure of the profile. Some profiles are thick enough to install thicker glass, but some profiles are only thick. Can install ordinary insulating glass. As for ordinary insulating glass, consumers also have some flaws in their choice. The gas spacer layer of the insulating glass can effectively limit the heat transfer, but the thickness of the spacer layer is not as good as possible, and the reasonable thickness should generally be between 12 mm and 16 mm. From the sound insulation effect, the thicker the single piece of glass, the better, but the thickness of the two pieces of glass of the insulating glass is not the same, but it needs special customization.
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