Low-E Glass is a type of energy-efficient glass that has a special coating to reflect heat while allowing light to pass through. This coating helps keep homes and buildings warmer in the winter and cooler in the summer, reducing the need for heating and cooling systems. The term "Low-E" stands for low emissivity, which means the glass emits less infrared radiation. This feature not only improves energy efficiency but also helps protect furnishings from fading due to sunlight. Low-E Glass is commonly used in windows and doors in both residential and commercial buildings.