Double glazed windows have improved dramatically and led to the development of highly energy efficient windows and doors. When choosing double glazing for your windows and doors here are some features to look for. Contact us for more information.
Click here for an overview of Carlson's window and door products available in double and triple glazing.
Window Frame Material
Choose your window frames wisely as heat is lost through the frame as well as the glass. Wood is a very good insulator and Carlson's timber double glazed windows allow very little heat to pass through. However, be aware that not all window company's wooden frames are of such high quality so avoid the cheaper ones that can swell or shrink when exposed to rain or sunshine.
AluClad is another excellent frame option., Carlson's alu clad windows and doors are made of timber with the addition of an aluminium cladding to the external side, which is virtually maintenance free. Alu clad is an excellent choice if your home is in an exposed area, is by the sea or you experience a lot of rainfall as it gives you that extra protection against the elements. Contact us for more information.
Argon Gas between the Panes
When choosing double glazed energy efficient windows make sure the panes of glass are filled with Argon Gas rather than air. ,Less costly double glazed windows are filled with a layer of air, which is not as insulating. Our energy efficient windows contain Argon gas to prevent heat loss through the windows, as it conducts about 33% less heat than air and is the better option to choose.
Glass with Low "E" Coating
Choose double glazing windows with Low “E” glass. Low Emissivity glass is coated with a thin invisible metallic film, which allows sunlight to enter through the glass, but slows heat leaving by reflecting radiant heat back into the room. This coating is positioned on the inside of the inner pane of glass to protect it from wear.
Warm Edge Spacer Bars
The panes of glass in any window must be held apart by a ‘spacer’ bar. Many manufacturers use metal or aluminium spacer bars. However, as metal conducts heat, this transfers the heat from the inside of a building outside through the spacer bar. In addition to the increased heat loss, the colder edge is more prone to condensation. Carlson use the more innovative “Warm Edge Spacer Bar”.
Windows and uValues
A window's uValue is a guide their energy efficiency. The lower the u-Value the more energy efficient the windows are. Click here to view Carlson's window uValues.