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Why Gas Fill Insulated Glass Sealed Units?

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Why Gas Fill Insulated Glass Sealed Units?
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Traditionally, double glazing units (also referred to as insulated glass sealed units) were air-filled. However, a higher demand for more energy efficient windows has lead to suppliers within the window industry exploring all options to reduce thermal transfer through windows. Gas filling is one of a number of ways to effectively reduce thermal transfer.
Windows lose heat in various ways, including: air leakage around opening lights and sashes; conduction through the window frame, and air leakage around the window frame.

The insulated glass sealed unit itself can lose heat by conduction through the glazing spacer bars and radiation through glazing.

It is with this heat flow in mind, coupled with increasingly stringent regulations that suppliers within the window industry are striving towards higher and higher performance glazing.
Why Gas Fill Insulated Glass Sealed Units
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