We all know that double glazing is more energy efficient than single glazing. And we all know that there are two panes of glass involved. But what about the science behind why double glazing is so much better than single glazing? What’s in between the panes of glass? How do double glazed windows work? Let us explain…
First of all, when we talk about double glazing, we are referring to sealed window units that contain two panes of glass within the frame.
Adding an extra, single pane of glass in front of an existing window is called secondary glazing and although doing this will carry many of the benefits of a double glazed window, this is not what we’re interested in in this article.
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