Low Emissivity Glass, or Low E-Glass, is a strategic choice for lowering your home energy costs all-year-round. In winter, Low-E Glass reduces heat loss to the cold outdoors by reducing radiant heat transfer and reflecting interior heat back into your room, where it needs to be. It efficiently dispenses the sun’s rays, allowing more heat of to enter the home as useable solar energy and providing extra warmth. In summer, the same effect occurs but on the opposite spectrum, helping reduce the flow of hot air into the cooler interior. Low-E Glass also reduces the effects of the sun’s ultraviolet (UV) rays, which are a leading cause of premature fading and degradation of fabrics and carpeting.