Low-E2 glass, or low-emissivity glass, features a microscopically thin, transparent coating that reflects heat while allowing visible light to pass through. This unique characteristic makes it an ideal choice for energy-efficient buildings. Unlike traditional glass, which transmits both heat and light, Low-E2 glass effectively minimizes the amount of infrared radiation that can penetrate through windows and doors. As a result, buildings equipped with Low-E2 glass can maintain more stable indoor temperatures, reducing the reliance on heating and cooling systems throughout the year.