How much can new aluminium windows save on energy?

The current cost-of-living crisis has encouraged many homeowners to start looking for new ways to save on their energy bills. Switching off appliances or reducing your heating use are some ways to help lower these rising costs. But for a more long-term impact, installing new aluminium windows can be one of the best ways to improve thermal efficiency in your home.

Find out how replacing your old windows with new energy-efficient aluminium windows can help save on your energy bills.

How much energy do new windows save?

Heat can be lost through many ways in your home. Windows, doors, and walls are the largest source of heat loss; therefore, it is important to improve their efficiency. Old and leaky windows can lead to a waste of energy. So how much energy do new windows save?

In comparison to single-glazed windows, double or triple glazed can immediately improve your home’s thermal envelope. A thermal envelope traps the heat inside of your home, stopping it transferring outside. Windows with lower U-values have better insulation and lower levels of heat loss.

When choosing a new window, it is important to check the BFRC rating (British Fenestration Rating Council Limited). A BFRC rating of A-A++ means the window is energy positive, so there is very little energy loss through the window. Older, single glazed windows will have a lower BFRC rating, which would increase heat loss. Replacing these older windows would provide better insulation for your home, lowering your energy bills.

New windows can save you money by keeping your energy bills down. High quality aluminium windows may appear costly at the point of installation, however, once fitted, they will start paying for themselves immediately. New windows will have a positive long-term impact on your energy savings.

How energy efficient are aluminium windows?

If you’re looking for new windows, why not try aluminium windows? It has previously been perceived that aluminium windows have poor thermal efficiency. But this is not true. Our aluminium windows have U-values as low as 1.0W/m²K, the national minimum standard for windows is 1.4W/m²K.

Double glazing provides an insulating barrier. The gap between the layers of glass is crucial for keeping the heat in. The material of window frame can also lower the risk of heat loss to your home. Aluminium frames use a thermal break, which prevents aluminium to aluminium contact, reducing heat loss.

Aluminium windows are energy efficient in other ways. All our windows are watertight up to at least 300pa and have an extreme level of wind resistance up to 2400pa. These windows help to eliminate draughts and heat loss, which contributes to the energy efficiency of the home.

Aluminium or uPVC?

Aluminium windows are made of a more durable and long-lasting material, whereas uPVC windows tend to have a lower life expectancy and can lose some of their insulating properties. Therefore, aluminium windows will need replacing less often than uPVC windows.

An aluminium frame with a thermal break will make your home more energy efficient. This efficiency makes it easier for aluminium windows to meet Approved Document L regulations compared to a uPVC window frame.

Your choice of window should be based on several things, including the characteristics of your Sussex home. Typically, uPVC windows are associated with older-style buildings, and aluminium windows with more contemporary houses. However, at Sussex Glazing we have several styles that would suit all types of homes; Aluminium Domestic Windows, Aluminium Heritage Windows, Aluminium Tilt and Turn Windows, amongst others.



If you have any further queries about how much energy new windows save, or would like to get started with installing your new windows, get a quote today or call the Sussex Glazing team on 01273 287 287.

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