Double glazing is an incredibly energy efficient solution to keeping buildings warm and secure. Insulating glass often consists of more than two glass windows grouped together either by polyester film or by a combination of polyester and argon. These panes are then sealed with either air-tight or air-applied gas, or a mixture of the two. A particular type of double glazing which is most common in attics is made up of two rows of toughened safety glass, sealed between two panes of air-filled and gas-filled compartments. This type of double glazing has greater advantages over conventional double glazing in terms of both security and energy efficiency:

Double glazing has a number of major benefits. The most important advantage is that it can reduce drafts and increase insulation between rooms and even entire buildings. Even if the space in a room is not completely sealed, the energy efficiency of double glazing means that the occupants will not feel cold. Insulated double glazed windows are also more difficult to break into than unfiltered, unenclosed glasses.

Another major advantage of double glazing is that it is more energy efficient than regular windows. In a typical case, a standard double glazed window is equivalent to about half the amount of energy as a glazed window with a second pane. In addition, a new study estimates that the energy savings from double glazing can be improved by as much as 20% through the reduction in the quantity of times that the air in the room is heated or cooled during the winter and for the increase in insulation between windows. Additionally, since a double-glazed window is less likely to be broken into, there is less chance of damage to the structure.

The design of double glazing makes it highly effective at reducing heat transfer through the structure. Because air gaps between the panes are eliminated, heat cannot escape through any space in the glass. In addition, because the air gap is filled, heat cannot pass through the window frame. Because the air gap is sealed, heat is effectively absorbed by the glass and transferred through the material to surrounding surfaces. This means that the interior temperature of a room will remain constant, even in the summer.

Two forms of double glazing are available. One type consists of a spacer bar. These bars allow some air space between the panes of glass, so that heat can be allowed to disperse evenly throughout the glass. The insulating gas used in double glazing includes argon, krypton, or xenon. The spacer bar is installed in the center of the window and left free to push against the panes on either side of the opening so that both air gaps are closed and heat can be efficiently transferred.

A second type of glazing consists of secondary glazing. This type offers a more efficient method for keeping a room’s temperature constant than does the spacer type. Secondary glazing consists of glass panels located above the opening of windows and doors. These panels prevent heat from being conducted across the surface of the windows and doors, which keep the temperature of a room consistent regardless of whether or not it is opened.

Secondary glazing reduces heat loss in rooms that are occupied but offer no other benefit. It offers no insulation and only provides minimal insulating value. Although secondary glazing can reduce energy costs, its primary function is to insulate against solar gain. Since solar gain cannot be avoided, it makes little sense to purchase additional glazing that will not provide any insulation value.

When evaluating the cost savings of insulating your home with double glazed windows and doors, be sure to consider not just the reduction in heat loss, but also the increase in energy efficiency that comes with it. With a combination of double glazed windows and doors, you can make your home more energy efficient than it would be otherwise. The savings will be realized after the initial purchase and installation. If you want to learn more about how these materials work and what the optimum configuration is for proper insulation, be sure to contact a reputable installer. They can help you determine which configurations provide the best results.

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