What are Low E and Argon gas and why are they important?
Low E and argon gas are two recent major advances in window construction that have improved the energy efficiency of windows substantially. 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 through the glass into the building. At the same time it blocks heat from leaving the room, reducing heat loss considerably. Low E comes in different formulas and different ways of applying it to the glass. Low E SunStop or Low E Squared or Low E Cubed are all simply manufacturersw marketing names. Hard Coat (pyrolytic) and Soft Coat (sputtered) are the ways it is applied to the glass. Terms such as “Low E SunStop”, “Low E Squared”, or “Low E Cubed” are nothng more than trademarked marketing names which offer consumers no objective information. The EnergyStar label remains the most reliable consumer assurance of a quality window product, and avoids confusing and complicated technical jargon Argon gas is a h
