What is double glazing?As the name suggests, double glazed windows comprise of two panes of glass which are approximately 4mm in thickness and separated by a gap. In replacement windows, this gap is typically 20mm and is much bigger than the older styles of double glazing. Generally speaking, you can expect your new window unit to be around 28mm. Not only do double glazed windows have the extra pane of glass, but the gap in between these panes is also filled with Argon gas. This gas is known for being denser than air and it helps to improve the thermal efficiency of the window. The British Fenestration Rating Council (BFRC) have created an energy rating scheme for windows to help homeowners choose the right units for their home too. All double glazed windows will be assessed and a rating will be calculated on the efficiency of all components in the window. The window will then be rated from A+ to G, with A+ being at the top of the scale.
How can double glazing keep your home warm?There are two main reasons why double glazing is able to keep your home much warmer during winter months than single glazing. These are;