Double glazing refers to a window that has two panes of glass. The main component of the window is the double glazed sealed unit, also known as an insulated glass unit (IGU) which sits in a frame of uPVC, aluminium or timber.
The IGU comprises of two sheets of glass separated by a spacer bar to create an air gap which is filled with an insulating gas. A bit like a sandwich of glass bread with a filling of air.
The primary benefit of double glazing is thermal insulation – to retain heat in a room whilst stopping cold air entering from outside to make the room more energy-efficient.
Double glazing makes such a difference to energy-efficiency that building regulations were set in 2002, to say that all replacement windows must be a minimum double glazed C rated – unless the property is a listed building or in a conservation area.
Thermal transfer, solar gain, dew point, sound frequency and conduction - what all this information means in reality is that double glazing will:
If you’re thinking of upgrading your windows, all our windows are bespoke made from a range of different glass products.
If you have an extra cold room that doesn't get light, a room that gets too much sun, or a bedroom facing a noisy road – we can provide the perfect window for you.