How does double glazing work

November 30, 2020 4:27 pm


We live in an age where science in our homes surrounds us, cooking our food, keeping us safe, and enabling our homes to be energy efficient. A main component of this is the windows, since their job is to keep heat in the house and keep the house cool, making the house much more fuel-efficient and reducing energy bills. If you need double glazing, and it is a very good idea to have it, then you should get in touch with Double Glazing Hereford based company Firmfix who will be able to assist you in getting the right fix for the job you need doing.

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The Energy Saving Trust explains that many window manufacturers demonstrate how their goods are energy-efficient, using a rating scale that goes from E (not very efficient) to A+ plus (the most efficient you can have). The whole window – that is, both the glass and the frame – is measured by this scheme. But if you are thinking about new double glazing, this is certainly worth checking out.

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Two glass panes that have an airtight space between them have double glazed windows. For air to flow through the distance is too small and this slows down the heat transfer from the warm inside of the house to the cold outside. So for longer, a smaller amount of heat lasts.


To ensure that these windows save heat, the airtight gap is crucially essential. So the seals that hold the gap airtight might have failed if you have found misting or condensation – and this is seen very frequently in double glazing – and it is definitely time to upgrade your windows.