Double pane windows are easily the most important advancement in window manufacturing over the last decade.
Sometimes referred to as double glazed or insulated glass units, a double pane window is constructed of two panes of glass with an inert gas sandwiched in-between. In technical terms, this is known as a hermetically sealed unit, meaning the internal environment of the unit is isolated from the exterior environment.
The use of double pane windows has become the clear choice among builders and homeowners alike, due to their excellent insulating properties. With energy costs skyrocketing, triple glazing, windows with three panes or more, has become increasingly common.
Available as replacement or new construction models, these windows are the most common window type in production today. Double pane windows are commonly found in all types of windows such as: single hung, double hung, sliding, and casement.