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Triple Glazed Windows: Worth The Investment?

Many of our customers ask us, are triple glazed windows worth the investment?

It’s a good question, as triple glazing does not suit every customer’s needs. Here’s what you need to know about triple glazing.

What is triple glazing?

Windows have moved way beyond just letting in light and allowing us to see out of our homes. Since double glazing came along decades ago, windows are expected to have insulation and noise-reducing properties too.

Triple glazing uses three panes of glass instead of the two in double glazing. This improves the thermal property of the windows, so triple glazing is pretty much standard in Scandinavian countries, due to the harsh winters there. It’s also very popular in Germany.

The gaps between the panes are filed with an inert gas, usually argon, to reduce heat loss between the panes. The extra pane also reduces sound considerably.

How does triple glazing compare with double?

The energy efficiency of windows is measured in U-value. The U-value measures how much heat is lost through a given thickness of a particular material via conduction, convection and radiation. The lower the U-value is, the better the material is as a heat insulator.

To give you an idea, single glazing has a U-value of 5, older double glazing about 3, and our current double glazing has a U-value of 1.1. Walls have a U-value of about 0.3.

Triple glazing can achieve a U-value as low as 0.6 W/m2K versus a U-value for a good double-glazed window of 1.2 W/m2K, according to SEAI.

What’s the investment?

Triple glazing can cost about 30% more than double glazing. The exact quote depends on the size of the windows and frames. Because of the extra weight, it requires sturdier hinges and frames, and is a bigger job to fit.

Triple glazing is common in new homes. When there is quality and thick insulation in the walls, double-glazed windows can be much colder compared to the rest of the house because of the difference in U-value between the windows and the rest of the building. Triple glazing reduces this difference.

Some people are unsure whether triple glazing is worth the investment if they are renovating. In some cases, especially with older properties, A-rated double glazing can be a better option. The house probably has other points of significant heat loss such as the roof, doors and walls that would represent a better investment to insulate.

However, if you get little natural light into your home (north-facing etc), and/or noise reduction is a big factor, then triple glazing could be worth the investment.

Talk to the windows experts

Every window job we do is bespoke to your home and your requirements. We will honestly advise you on whether double or triple glazing would be worthwhile for your needs.

We also have many options in window frames, including: UPVC Windows, Timber, Alu-Clad Timber, UPVC Sash Windows, and Timber Sash.

We’re experts in triple-glazed uPVC windows as we’ve been installing them for years. Contact us for more information on our Upvc Windows or call us on 1800 4 78953 to discuss your requirements.

Don’t forget to Like us on FacebookFollow us on Twitter & +1 us on Google+  – and don’t be afraid to say hello!

If you liked our Triple Glazed Windows post, you may also be interested in some of our other helpful articles:

Cleaning Windows: Top Tips

4 Home Energy-Saving Tips from Regency Windows

4 Reasons You Need Quality Windows

Quality Windows in Ireland: The Regency Promise

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