Double Glazing Units

What are double glazed windows?
An insulated glass unit (IGU) combines more than one glass panes right into a single window machine. Maximum IGUs are double glazed (two panes of glass) with 3 panes (triple glazing) or more turning into extra common place due to higher energy cost. The panes of glass in IGUs are separated by way of a spacer and a nonetheless layer of air or gasoline. The glass is then geared up into window frames, which is made wider to house the two panes.

The benefits of double glazing

Double glazed home windows are super energy efficient choice with the delivered gain of minimizing noise. The sealed air gap among the two panes acts as a brought layer of insulation. This brought thermal resistance reduces the amount of warmth escaping in winter and continues your home at a more relaxed temperature. Double glazing has the reverse impact in the summertime, stopping undesirable warmth from entering the home. This greater insulation lessens your reliance on synthetic warmers and air conditioners and may, in the end, reduce your electricity charges.

When you are close to a window, your consolation is also suffering from the temperature of the glass. With double glazing it’s more difficult for the unwanted outdoor temperature to switch through, leaving the inside pane near room temperature. Double glazing additionally reduces condensation that could bring about the bad formation of mold.

Sealed double glazing is effective at reducing medium to high-frequency noise consisting of the human voice. A distinction in glass thickness between the internal and outer panes will improve sound discount even further.

Double glazed home windows are taken into consideration a more secure option while compared to standard unmarried pane home windows. two sheets of glass are lots harder to break than one and for even more protection you could specify toughened or laminate.

Tips for Choosing Right Windows

  • For better energy efficient performance choose double glazing with a space of 10mm to 20 mm between the panes
  • Inert, low conductivity gas inserted between panes will increase performance

What to look for

Amount of space between panes

The standard area among panes ranges from 6 mm to 20 mm. A minimum area of 12 mm is usually recommended for max thermal performance. rather, for good acoustic manage and to reduce low-frequency noise such as traffic and plane, the top-rated air gap encouraged is 150 mm or over. Be aware that such large gaps permit convection to occur between the panes and decrease insulating performance.

What’s in between

Because the space between the panes in double glazed windows is fully sealed, it acts as an insulator, limiting the transfer of cold air coming into your home. Thermal and acoustic performance can be improved using the gas filled in this area. The maximum popular fuel used is argon which has low conductivity homes to improve insulation. Double glazed devices encompass a spacer that’s a metallic or polymer strip that separates the 2 panes of glass. Usually, spacers include a desiccant (drying agent) to eliminate moisture trapped within the air area.

Type of glass used

A huge range of various glass types, which include low-e and laminated, may be used in double glazing devices to further growth energy performance and noise control. Low-e glass will similarly reduce the quantity of warmth escaping even as thicker laminated panes disrupt sounds waves to improve acoustic performance.

Common Problems

Windows want to be considered as a whole unit. The framing fabric you pick out to supplement your glass can also decorate its performance or in some instances lessen its strength efficient properties. Trendy aluminium window frames conveniently behavior warmth and bloodless and if no longer thermally stronger, may additionally eliminate any benefit from installing steeply-priced double glazing.

How nicely the hollow space is sealed and the type of spacer used is likewise an essential element to do not forget. If the double glazed unit isn’t always sealed well or if the spacer does not contain an adequate desiccant, it may lessen overall performance and condensation will seem on cold surfaces.


  • Minimizes heat loss in winter
  • Minimises heat gain in summer
  • Improves noise reduction


  • High cost compare to single glazing
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Our admin is an specialized windows and doors consultant working with us for more than 5 years. He provides the customers with consultation for building or renovation of their houses.

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