How to Choose Double Glazed Windows

Some homeowners may think that all double glazed windows can offer the same degree of thermal insulation. However, manufacturing methods of double glazed windows differ from one manufacturer to another. This article discusses some of the features of double glazed windows that you should consider so that you get value for money when you replace the windows in your home.

The Size of the Cavities

Double glazing creates a space between the two panes in a window. That space acts as a barrier through which heat will not easily escape or get into your home. Thus, double glazed windows with wider cavities may do a better job of insulating your home when compared to double glazed windows that have narrow cavities. You should therefore choose double glazed windows that have the widest cavities available.

The Gas Used to Fill Cavities

Manufacturers of double glazed windows fill the cavities between the two panes with an inert gas. The gas that is used is heavier than ordinary air. Two gases are commonly used to fill the cavities in double glazed windows. The first is Argon. The second is Krypton gas. Many manufacturers use Argon in the windows that they make because Argon is cheaper than Krypton. However, Krypton is a better heat insulator than Argon because it is denser than Argon. Pick windows that have Krypton gas if you would like superior heat insulation in your home.

The Coatings on the Panes

Double glazed windows may be made without any coatings on the panes. Others may have some coatings added to the surface of the windowpanes. Those coatings serve different purposes. For instance, e-coatings reduce how easily the windowpane can gain heat from the sun. Other manufacturers add reflective coatings that block most of the light from the sun from getting into your home. It is therefore crucial that you consider the impact of the different coatings added to the panes before you select double glazed windows to buy. Pick windows whose coatings will serve your needs.

As you can see from the discussion above, you should not buy double glazed windows arbitrarily. Pay special attention to the different features of each window available before selecting the ones that will address your insulation needs effectively. It may also be helpful for you to talk to a double glazing professional so that you are informed about the entire range of existing features before you buy double-glazed windows for your home.