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Glass for the HomeDouble Glazing

Can Double Glazing Save You Money on Your Energy Bills?

In short, the answer is yes. Double glazing can save you money on your energy bills.

Whilst the benefits that double glazing can have on a building have been well-publicised, it has been reported that around 7% of households across the UK don’t have double glazing. This is most likely due to the fact that many property owners are unaware of exactly what it means to have double glazing installed and the impact it can have on energy bills.

Whether you have recently purchased a new home, you are looking to update your current glazing units or you want an effective way to save money on your bills, read on to find out how double glazing can be the best option.

 

Double Glazing: The Facts

Depending on its construction, around 18 to 25 percent of heat can be lost through the windows of a house that is not energy efficient.

In winter, the inside of a building with double glazing is warmer as draughts are excluded and less heat is radiated out. In the hot summer months, the extra layer of glass on double glazing helps to reduce heat radiated in by the sun (especially with the addition of blinds).

Double glazing units typically last for up to twenty-five years, although it’s worth noting that this can be reduced in the case of north facing windows which are prone to cold conditions or moss growth – and for windows which face south and are directly exposed to the strongest sunshine all day.

How Does Double Glazing Work?

For good insulation, there should be a minimum of approximately 16mm spacing between the two glass panes, and the cavity should be filled with an inert gas such as argon to reduce heat transfer. There should also be non-metallic separators to keep the panes apart.

When it comes to reducing heat loss, some low cost alternatives are available, including vents, curtains and blinds.

Although these may seem cost-effective, they don’t possess the same insulating properties as double glazing – in fact, heat loss through single glazing occurs twice as fast as it does through double glazing. As such, you will most likely end up spending more money on repairs and replacements.

 

What Are The Benefits of Double Glazing?

Ideally, double glazing should be installed from the inside, as this makes it more difficult to remove from the outside.

After installation, winter condensation is reduced, saving the aesthetics of the property along with the time and expense otherwise spent on window frame maintenance every few years. Importantly, your home is more energy efficient, producing a smaller carbon footprint.

Apart from thermal insulation, double glazing also offers extra security along with acoustic insulation. Not only do the windows offer greater physical protection, but the inside of your house will also be quieter.

 

Double Glazing Energy Efficiency Ratings

Double glazing units have energy efficiency ratings similar to those used for fridges, with ratings ranging from A to G; an ‘A+’ rating represents the best thermal efficiency.

So, what exactly is an energy efficiency rating?

It measures the overall energy performance of an entire window, taking into account all components, including the frame and glass. It is represented by a letter which has been calculated based on the window’s overall thermal efficiency, air leakage and the amount of heat from the sun that passes through the window.

When it comes to monetary savings, category B rated double glazing is estimated to save approximately £110-140 a year in heating costs for a typical detached home. Over ten years this would amount to £1,100-1,400 and over twenty years the estimated saving would be in the region of £2,200-2,800, at current energy prices.

The saving for category A or A+ rated glazing would be even higher.

 

Upfront Costs vs Long Term Investment

Double glazing addresses the heat loss experienced by buildings; part or all of the insulation cost can be saved over the lifetime of the windows. Of course, double glazing has an installation cost – so the work should be viewed as a long-term investment, which can improve the thermal efficiency of a property instantly. Not only that, it is often the case that double glazed windows can increase the resale value of a house – even in the short term.

After footing the initial upfront cost, the return on investment you will see over time is sure to make it a worthwhile purchase. If you want to find out how much money you could potentially save on energy bills by installing energy efficient windows, simply fill in a few details on the GGF energy savings calculator and let the machine do the rest!

 

Stevenage Glass

As a GGF founding member, here at Stevenage Glass we are proud to offer the finest glass products for the best possible prices. As experts in our field, our double glazing units are cut with precision, ensuring a flawless and high quality finish for your windows. If you are looking to improve the energy efficiency of your property without compromising on its look, give our experienced team a call or fill out our online form today – we will be happy to discuss your double glazing requirements.

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