Glazing refers to the layers of glass that are sealed in a frame to make up a window. Traditionally, single glazing, with just one pane of glass in the frame, was used.
Today, double glazing, with two layers of glass – or even triple glazing, with three layers – is increasingly popular because it reduces the amount of heat lost through windows and helps increase the energy efficiency of your home.
A single pane of glass provides very poor insulation because glass is a good conductor of heat. Much of the heat in your room literally goes out the window.
Install double glazing and you have a layer of air trapped between two panes of glass. Because air is a poor conductor of heat, much less heat is lost through the window.
If the inside of one pane has Low E coating, even less heat is lost, because the coating reflects heat back into the room.
Single, double or triple glazing refers to the number of panes of glass that are sealed in a frame to make up a window.
Double or triple glazing has a layer of insulating air, or other gas, between panes that acts in a similar way to a fibreglass batt in a wall. It reduces heat loss from windows and increases comfort and warmth.
Other benefits of double or triple glazing can include lower energy bills and reduced noise.
A Low E glass coating can further boost the benefits of double or triple glazing.
Thermal performance measures effectiveness of glazing and shows the difference double and triple glazing can make to improving the energy efficiency of your home.
