Energy efficiency is crucial in this climate of increased fossil fuel consumption.
The windows contribute about 20% of heat lost from houses with old double glazed windows.
The air gap between the sheets of glass in double glazed windows will fail over time.
Symptoms of failed double glazing include condensation on the inside of the glass layers.
Replacing all your windows is the only solution when double glazing units fail. Replacing your windows with new double glazing is an option, but for a couple of hundred pounds, you can go triple glazing.
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Double glazing or triple glazing?
The uptake of triple glazing is still small compared to the prevalence of triple glazing in Scandinavian countries such as Sweden, Denmark and Norway. Their cold climates mean the houses demand sufficient insulation against heat loss. Triple glazing, therefore, comes as standard in most, if not all houses. So what is better double or triple glazing?
Double glazing and triple glazing both work on the same principles. Two panes of glass with an insulating gas layer separating them have better heat loss properties than a single layer of glass; that’s double glazing. Add a third layer and have two gas layers then you have just increased the insulating properties of the window significantly. Therefore, regarding the insulating performance of the glass alone, triple glazing is better than double glazing.
However, few triple glazing companies will take into account the effect the frame has on the efficiency figures they use in their sales pitches. UPVC, the most common triple glazing frame material, is a poor insulator. If you are looking to replace timber-framed double glazed windows with UPVC triple glazing, the benefits may be more cosmetic than energy efficiency. Therefore, if you want to make the biggest savings possible, opt for timber framed triple glazing units.
Triple glazed windows cost
It ‘s hard to provide accurate prices for triple glazing without carrying out a survey of the property, which every installer should do before giving you a quote. The costs of installing triple glazed windows will also vary depending on where you live in the UK, as well as the type of frame you choose and the size of the window.
Aluminium and timber frames cost more than UPVC framed tripled glazed windows. A simple guide to understanding triple glazing prices is to use a representative example. Let’s say a double glazed window costs £350, for a triple glazed window of the same size, you can expect to pay around £500 or just under.
Below are price estimates for triple glazing windows for different types and sizes of houses in the UK. The list below should give you an approximate figure for budgeting purposes before you go ahead and invite triple glazing installers to provide quotes to you.
- Two bedrooms flat – costs to replace four windows with triple glazing will set you back around £1,950.
- Two bedroom terrace – most terraced houses of this size have five windows, which will cost nearly £2,500 to triple glaze.
- Semi-detached house – to replace seven windows in a two bedroom or nine in a three bedroom house will cost approximately £3,400 and £4,400 respectively.
- Detached house – fitting twelve triple glazed windows to a three bedroom house will cost around £6,000 while replacing fifteen windows will be just over £7,000.
As you can see from the price trend above, the more windows to replace the more you will pay. However, the average cost per window goes down. Deciding to replace all your windows at once may qualify you for a hefty discount because of the amount of work you will bring in. Always bear this in mind when deciding whether to upgrade your windows or not.
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What are the benefits and disadvantages of triple glazing?
Now that you have an idea of the costs involved with upgrading your windows to triple glazing, are the benefits worth it? This part of the article outlines some of the pros and cons of installing triple glazed windows.
Some of the top benefits of triple glazing are as follows:
- Reduces heat loss through the windows improving energy efficiency and helps lower heating bills.
- Traps more heat and makes your home warmer and cosy.
- Improves security as triple glazing windows is stronger than double glazing.
- The extra thickness helps to reduce noise from outside coming in.
- Triple glazing cons include:
- Triple glazing is more expensive than double glazing.
- Thicker glass reduces the amount of natural light entering your home.
It may be a needless expense if your existing windows are wood framed and still in good condition.
Triple glazing will no doubt make your home energy efficient, but it is not a measure you can implement in isolation. The benefits may be minimal if other parts of the building fabric are losing heat, such as the walls. Make sure you need the upgrade, be informed and don’t bow down to pushy glazing sales tactics.
Get your quotes for triple glazing windows from suppliers near you
Getting your quotes for triple glazing couldn’t be easier. You can rest assured the glazing companies you will receive quotes from are reliable and professional. Don’t take a chance when it comes to triple glazing. Get informed and make the right decision.
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