What if your house had windows like sunglasses? Low-Emisivity glass windows are just like having sunglasses for your house that filter the brightness of the light.
Low-Emissivity glass, commonly called Low-E glass, is a type of reflective glass that is gaining in popularity, especially in residential and office applications. Windows with Low-E coatings resist ultraviolet light. Low-E coatings are very thin metallic coatings that reduce visible light transmission by about 10 percent compared to uncoated glass.
This is NOT a window tint film, the special coating is applied using either the vacuum (sputter) or pyrolytic process.
Low-E Glass Advantages
Because it resists ultraviolet light, Low-E glass prevents sunlight exposure from damaging carpets, draperies, sofas and other furnishings. Plus, Low-E glass reduces sunlight glare in a room. Most importantly, Low-E windows reduce energy costs by helping to control the climate in the house.
Low-E glass allows sunlight into a room without letting heat inside. In the summer this keeps rooms cool and lowers air conditioning costs. In warmer southern areas, Low-E coatings are usually applied to bronze, green or gray tinted glass.
The coatings reduce glare and reflect the sun’s heat away from the structure.