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Sunset Air Blog

What Are Insulated Windows?

If you’ve ever touched a single-pane window from the inside of a house on a chilly day and experienced that initial shock of cold, then you have a pretty good idea of how easily cold can get into your home during winter with single-pane glass windows. With insulated windows, also known as double-pane windows, this shock of cold stays outside where it belongs. In fact, according to, the average homeowner can save anywhere from $125-$465 on annual energy costs when upgrading from a single-pane window to a double-pane window. Window installation in Tacoma should always be handled by professionals, so call the people you can trust: Sunset Air.

Why Do Insulated Windows Work Better?

The first reason why insulated windows work better is because a second pane of glass is added. There is a specific amount of space between the first and second panes of glass, usually ranging from ¼ of an inch to a ½ inch, depending on the manufacturer. Why the space? This space in between panes acts as a layer of insulation through which the heat can’t pass; in fact, it’s estimated that only half as much heat passes through a double-pane window. This space between panes can be filled with air or gas; the usual gas choices are krypton and argon. A second reason insulated windows work better is because of the materials that make up the framing: wood composites, vinyl and fiberglass are some of the materials used, and they are far better insulators than the traditional aluminum frames.

Benefits of Insulated Windows

  • Decreases heat loss – insulated windows can reduce heat loss up to four times more than with single-pane windows.
  • Reduces condensation – the insulation of the air gap between the panes significantly reduces the conditions that can cause condensation to develop on your windows.
  • Reduces outside noise – the extra insulation helps reduce outside noise.
  • Reduces energy usage – double-pane windows can reduce energy usage by 24%, which can be a significant savings for many homes.

If you have been struggling with heat loss due to old, single-pane windows, it may be time to consider new window installation for your Tacoma home.

Call the experts at Sunset Air today and see what insulated windows can do for your living space.

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