Low-emission glass (Low-E) is a clear glass, it has a microscopically-thin coating of metal oxide. This allows the sun's heat and light to pass trough the glass into the building. At the same time it blocks heat from leaving the room, reducing heat loss considerably.
This glass has an insulating coating which reduces the amount of heat flowing through a window, but does not affect daylight. Low-E glass can bounce back between 40% and 70% of the heat that would otherwise pass through.
Low-emissivity (reflective) coated double glazing
Glass with a transparent metallic coating applied onto or into the surface. The coating allows short-wave energy to pass through, but reflects long-wave infrared energy which improves the "U," or heat transfer, value.
energy efficient insulating glass with a low emissivity coating to restrict the passage of radiant heat
A term used to refer to glass which has low-emissivity due to a film or metallic coating on the surface of the glass. Usually constructed of dual, sealed panes of coated glass filled with pure inert gas to block ultraviolet heat, for cooling purposes, while reflecting room heat back into the room for heating purposes.
Low-emission glass (low-e) is a clear glass that has a microscopically thin coating of metal oxide. This coating allows the sun’s heat and light to pass through the glass. It also blocks the heat from leaving a room reducing heat loss.
A coating on the glass or a film suspended between 2 pieces of glass that transmit visible light, but reflects heat and ultra-violet light. Normally used in windows and doors for energy conservation.
Glass that has been coated to reduce by a measurable amount the ability of radiant heat and UV rays to pass through the glass. See About Energy Star
Glass which has been factory coated with a thin layer of material, nearly clear, which acts to absorb and reflect heat and light energy.
A common term used to refer to glass which has low emissivity due to a film or metallic coating on the glass or suspended between the two lights of glass to restrict the passage of radiant heat.