Features and effects of low emissivity glass

Features and effects of low emissivity glass

August 11, 2021

Low-E glass has high transmittance in the visible light region and high reflectivity to infrared energy, which effectively improves the heat insulation performance of the glass. Its application to curtain wall glass has a significant energy-saving effect. Low-e glass also overcomes the light pollution caused by the high reflection of visible light by traditional curtain wall glass, and the shortcomings of darkening of vision.

Low-E glass performance characteristics:

(1) Winter heat preservation: reflect the far-infrared heat radiation emitted by indoor heating and indoor objects back into the room to reduce the loss of indoor energy at night, which can effectively improve heating efficiency and save heating costs;

(2) Heat insulation in summer: prevent the far-infrared heat radiation emitted by outdoor ground and buildings from entering the room, and keep the indoor environment cooler, which can effectively save the cost of air conditioning and cooling.
Low-emissivity glass almost completely reflects far-infrared rays with a wavelength in the range of 1-40um, that is, it has low absorption of far-infrared rays, low secondary outward radiation characteristics, and can well block far-infrared radiant heat transfer, which is a performance Excellent, stable quality, long service life (more than 10 years), suitable for energy-saving glass products in different fields such as construction and automobiles.
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