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How Do Double Pane Windows Work?

5/16/2016 7:27:36 AM

​A home without windows is like a dark cave with no opportunity for natural ventilation. Clearly, windows are an important part of any building, but glass is a very inefficient building material. Fortunately, you don’t have to experience high energy loss through the windows just to enjoy a view – you can install double pane windows for superior energy efficiency.

How Do Double Pane Windows Work?

Also known as dual pane or double glazed windows, double pane windows feature two sheets of glass set within a single frame. The extra glass thickness isn’t what improves the efficiency of double pane windows – rather it’s the air pocket between them that greatly slows down heat transfer through the window.

Most double pane windows have a quarter-inch or half-inch air gap between the panes. These panes are kept an exact distance apart with spacers. The window is also sealed, making it possible to fill the gap with a non-toxic insulating gas such as argon or krypton. These gases are denser than air and slow heat transfer even more.

Many double pane windows feature other upgrades to improve efficiency even more, including low-e coatings and reflective films. These serve to keep harmful UV light and heat out, which is especially beneficial in warm climates.

Benefits of Double Pane Windows

  • Improve efficiency and save money: Double pane windows insulate better than single pane versions, making your home more efficient. A home that retains heat in winter and keeps heat out in summer is more affordable to heat and cool. In this way, double pane windows deliver savings to help pay for themselves.
  • Increase comfort: More efficient windows don’t just reduce heating and cooling bills – they also make every room feel more comfortable.
  • Increase sound insulation: From noisy neighbor kids to traffic to construction, you don’t want outdoor noise infiltrating your home. The air space between double pane windows insulates not only against heat transfer, but noise as well.
  • Reduce condensation: Single pane windows tend to condensate when a big temperature difference exists between the interior and exterior, which most often occurs in the winter. If enough condensation forms, beads of water run down the glass and damage the sill. Mold can start to grow on or behind the sill when this happens. Fortunately, this occurs less often with double pane windows.

Other Considerations

  • Benefits only come with a complete upgrade: Because all the windows in your home contribute to drafts and energy waste, you must replace all of them if you expect to enjoy the benefits of double pane windows. While this results in a higher purchase price, energy savings can help you recoup your investment.
  • Don’t skimp on installation: It’s tempting to skip professional installation, but even the best windows won’t meet your expectations if they’re installed poorly. Leave the job to a qualified professional for the best results.
For help choosing the right double pane window replacements for your needs, please contact Weather Shield directly or find a dealer near you.

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