Low-E glass, also known as low-emissivity glass, is a product that has multiple layers of metals or other compound films deposited on the surface of the glass. The coating layers of this glass have the characteristics of high transmittance of visible light and high reflection of mid-to-long infrared rays. Compared with ordinary glass and traditional architectural coated glass, it has excellent heat insulation performance and good light transmittance.
Due to its excellent thermal properties and good optical performance, the usage of "Low-E" has been increasing at a rate of 5% per year in the United States since 1990. Both property owners and window manufacturers attach great importance to energy-efficient windows. Most of this year's buildings are evaluated based on their energy-saving effects.