Energy Efficient Windows and How They Save Money
- Your carbon footprint will be smaller
- Lower energy bills
- Your home will be more comfortable - there will be fewer draughts and cold spots, and less heat lost through the windows
- Your home will be much quieter, because the energy efficient windows will insulate your home against outside noise
- Condensation will be reduced
- How well heat is prevented from passing through the window
- How much sunlight passes through the glass
- How much air leaks out or in from around the window
- Make sure your windows are manufactured using Low-E glass - low-E stands for low emissivity, and the glass often has an invisible coating of metal oxide, which lets light in but reduces the amount of heat escaping
- A very efficient window will use a gas in between the panes of glass - usually argon, krypton or xenon
- Pane spacers are used to keep the pieces of glass apart, and the most efficient window should contain little or no metal
- Different frame materials:
- uPVC frames - can be recycled, and are long lasting
- Wooden - these have a low impact on the environment, but will require regular maintenance
- Aluminium or steel - these metal frames are long-lasting, and can be recycled
- Composite frames - this is an inner frame of timber covered by plastic or aluminium, which means it requires less maintenance and is weatherproof
The British Fenestration Rating Council (BFRC) run the scheme for rating the energy efficiency of windows - both the glass and the frame. Manufacturers use a scale from A to G, with A being the most efficient and the best at retaining heat.
Choosing energy efficient windows for your home will keep it warmer and quieter, and save you money in the long run. You could choose from double or triple glazing, secondary glazing or simply hanging heavier curtains. If you only have single glazing in your property at present, sizeable savings can be made by changing to energy efficient windows. Anything from between £50 to more than £100 per annum, depending on the type of glazing you choose, and the size of your property.
There are plenty of benefits that come with energy efficient windows, for example:
It's very difficult to be exact about the cost and savings associated with energy efficient glazing, as every property is different, and there are many different kinds of glazing to choose from, and a wide variety of installers.
How Do Energy Efficient Windows Work?
Energy efficient glazing consists of two pieces of glass, that usually have a gap between them of around 16mm. This gap creates an insulating layer that keeps the heat in. Sometimes that gap is filled with a gas. With triple glazed windows there are 3 panes of glass, but that doesn't necessarily mean they are better than double glazed windows.When you're trying to decide on the most energy efficient window you should look for the BFRC rating. The criteria for measuring performance will vary depending on the material and style of the windows, but are based on the following:
What to Look for When Choosing Energy Efficient Windows