LOW-E glass and how to correctly identify

Glass is an important building material, with the building decoration requirements continue to improve, the use of glass in the construction industry is also increasing. However, today's people in the selection of the glass doors and windows of the building, in addition to considering its aesthetic and appearance characteristics, pay more attention to its heat control, cooling costs and internal sunshine projection comfort and other issues. This makes the coating glass family upstart - LAN-E glass stand out, become the focus of attention.

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Low-E glass, also known as low-radiation glass, is a glass surface coated with multi-layer metal or other compounds composed of film products. The coating layer has a high permeability to visible light and high reflectivity to far infrared, making it with ordinary glass and traditional architectural coated glass compared to the following obvious advantages:

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Excellent thermal performance

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Heat loss of doors and windows is a major part of building energy consumption, accounting for more than 50% of building energy consumption. The study data show that the inner surface of the glass heat transfer to the main, accounting for 58%, which means to change the performance of glass to reduce the loss of heat, the most effective way is to suppress the inner surface of the radiation. Ordinary float glass emissivity of up to 0.84, when coated with a layer of silver-based low-radiation film, the emissivity can be reduced to 0.1 below. Therefore, the use of Low-E glass building windows and doors, can greatly reduce the radiation caused by the indoor heat transfer to the outside, to achieve the desired energy saving effect.

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Another significant benefit from the reduction in indoor heat loss is environmental protection. Cold season, due to building heating caused by CO2, SO2 and other harmful gas emissions is an important source of pollution. If the use of Low-E glass, due to the reduction of heat loss, can significantly reduce the consumption of fuel consumption, thereby reducing harmful gas emissions.

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Good optical performance

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Low-E glass has a high transmittance of sunlight in the visible light, up to 80%, while the reflectivity is very low, which makes it compared with the traditional coated glass, optical performance greatly improved. From the outdoor viewing, the appearance of more transparent, clear, that is, to ensure a good building lighting, but also to avoid the previous large-scale glass curtain wall, hollow glass doors and windows light reflection caused by light pollution, creating a more soft and comfortable light environment.

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Coated glass according to the different characteristics of the product can be divided into the following categories: heat reflective glass, low-emission glass (Low-E), conductive film glass.