Low-E glass, also known as low-emissivity glass, is a film product composed of multiple layers of metal or other compounds coated on the surface of glass. Its coating layer has the characteristics of high transmission of visible light and high reflection of medium and far infrared rays, which makes it have excellent thermal insulation effect and good light transmittance compared with ordinary glass and traditional architectural coated glass.
The heat loss of exterior door and window glass is the main part of the energy consumption of buildings, accounting for more than 50% of the energy consumption of buildings. Relevant research data show that the heat transfer on the inner surface of the glass is dominated by radiation, accounting for 58%, which means that the most effective way to reduce the loss of heat energy from changing the performance of the glass is to suppress the radiation on its inner surface.
The emissivity of ordinary float glass is as high as 0.84, and when coated with a layer of silver-based low-emissivity film, its emissivity can be reduced to less than 0.15. Therefore, the use of Low-E glass to manufacture building doors and windows can greatly reduce the transfer of indoor heat energy caused by radiation to the outdoors, and achieve the ideal energy-saving effect.
Another significant benefit of reduced indoor heat loss is environmental protection. In the cold season, the emission of harmful gases such as CO2 and SO2 caused by building heating is an important source of pollution. If Low-E glass is used, the fuel consumed for heating can be significantly reduced due to the reduced heat loss, thus reducing the emission of harmful gases.
The heat through the glass is bidirectional, and the heat can be transferred from the inside to the outside, and vice versa, and at the same time, it is just a matter of the difference in heat transfer. In winter, the temperature inside is higher than outside, and heat preservation is required. In summer, the indoor temperature is lower than that of the outdoor, and the glass is required to be insulated, that is, the outdoor heat is transferred to the room as little as possible. Low-E glass can meet the requirements of winter and summer, which can not only keep heat but also heat insulated, and play an environmentally friendly and low-carbon effect.
After years of unremitting efforts,HUAYOU GLASS CO.,LTD has accumulated rich sales experience, established good cooperative relations with domestic and foreign glass deep processing manufacturers, and always provided our customers with high-quality 4mm low e glass,bronze low e glass and efficient services.