What is the primary function of low-E glass?

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Low-E glass, or low-emissivity glass, primarily functions to reflect heat while minimizing the transmission of harmful UV rays. This unique property is achieved through a microscopically thin coating that is applied to the glass surface. This coating allows the glass to reflect infrared energy (heat) back into the living space during colder months, thereby improving energy efficiency and comfort. In warmer months, it helps to keep heat outside, thus reducing the need for air conditioning. Additionally, low-E glass significantly reduces the amount of ultraviolet (UV) radiation that passes through the glass, protecting indoor furnishings and artwork from fading while also providing a more comfortable indoor environment.

This functionality directly aligns with the primary purpose of low-E glass, making it a highly desirable option in both residential and commercial applications for its energy-saving benefits.

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