A double glazing window is made up of two panels of glass separated by a layer of trapped argon gas. The argon gas layer has 67 percent of the thermal conductivity of air, making it a poor heat conductor, keeping warm air confined within your house and helping to increase energy efficiency. As the glass cannot be sealed in any way, these windows are most suitable for colder climates and can be added to an existing home or new build at a later date.

They Can Improve The Thermal Efficiency Of Homes

These double glazing windows are one of the most popular ways to improve the thermal efficiency of your home. They are also very effective in keeping humidity levels low, preventing condensation around windows, and reducing energy usage for heating or air conditioning.

The relative strength of the window glass and double glazing effect will depend on a number of factors, such as climate, construction type, and building materials used in the properties construction. Double glazed windows are more effective at trapping heat in colder climates, whereas areas with more natural light will benefit more from an improved insulating layer created by a thicker window glass pane.

Another important factor is the type of air gap between the two panes of glass. Argon gas is a poor conductor of heat, but the air has very low heat conductivity and can conduct up to five times more heat than argon gas. A smaller gap between the panes of glass means that there is less air between the two layers and, therefore, a larger amount of trapped argon gas. This will make your windows more thermally efficient and help to reduce energy bills for heating. However, this may come with a reduction in light transmittance, as double glazed windows with narrower air gaps also tend to have higher thermal breaks, reducing the amount of light from outside able to pass through.

What Things Should You Consider When Double glazing?

Most double glazing suppliers will provide a wide range of energy-efficient, secure, and toughened glass options, and all types can be used to create a double glazed window. The thickness of the glass is an important factor in deciding how thermally efficient your new windows will be. The thicker the pane of glass, the more likely it is that heat conducted through your window will be trapped in the argon gas layer between panes. At around 1/4 inch thick, typical domestic double glazing has a thermal break between the panes of around 3.8 watts per square meter kelvin (W/m²K).

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