Double Glazing Tyne And Wear Looks Into Whether Or Not Triple Glazing Is Superior To Double. For many years the UK window market has concluded that the idea of bigger means better. The thickness of double glazed windows has varied over the years, from around 20mm to 24mm, and then settling on 28mm, despite 24mm being the ideal size for thermal capacity.

The depths of the frames expanded nominally from 60MM to 70MM despite, there being no significant technical improvement simply with the misconception that bigger is best

The belief has prompted a new question about whether 3 are better than 2 or is triple glazing is a better option than double? ( The answer to this question is not as simple as you may think. As They Say, The Devil Is In The Details. In order to provide an answer to the question adequately, we must think carefully about the individual detailed description of any intended IGU (Insulated Glass Unit).

The recent industry recognised excellent double glazed unit consist of one 4mm sheet of “low E” (Low emissivity) coated glass, one sheet of 4mm unembellished toughened glass and a 20mm cavity of argon gas (makeup = 4-20-4)

1.1 W / kilojalores per metre squared is the u-value of the center panel offered. If we bring in a centre pane of plain glass but maintain the total thickness of the unit at 28mm (i.e. 4-8-4-8-4), we attain a u-value of 1.2 W / kilojalores per metre squared – a less appealing performance compared to the double glazed unit. But, we can improve the window’s performance by increasing the thickness of the triple glazed unit by making the cavities between the panes bigger. A u-value of 0.9 W / kilojalores per metre squared can be obtained with the ideal thickness of 44 mm (4 – 16 – 4 – 16 – 4). This could be improved further still, by adding another low emissivity panel, the u-value would drop to 0.6 W/ m2K.

On the surface, going from 1.1 W / kilojalores per metre squared to 0.6 W / kilojalores per metre squared in terms of heat loss seems like something worth paying for

The Window Energy Rating Scheme which has been widely accepted as the industry standard to judge thermal performance and also been subscribed into Building Regulations calculates solar gain along with heat loss. . So the amount that the triple glazed unit improves heat loss is directly countered by the reduction or warmth created by sunshine.

To solve this problem, and increase the solar light input, low iron glass can be used instead of the traditional glass used in practice, however, this will be a lot more expensive to use

Triple glazing purveyors have to take another aspect into consideration. This issue is related to the cracking of the units because of thermal stress. . Due to the centre panel of glass in a triple glazed window not having a free flowing amount of air around it, because it is trapped between two other panels of glass, the temperatures around it can increase and cause some problems. To correct this, use a toughened pane at the middle of the unit, this will unavoidably raise the cost again.
So shifting the triple glazing is a way of having a better thermal execution of IGU. Maybe, but what will it cost? With energy bills rising on an average that goes into double digit percentages each year, this is something that needs to be taken into account before making a decision.

Double Glazing Tyne And Wear can supply and install double glazing windows and doors with stained glass for customers in Tyne and Wear

The Tyne and Wear situated corporation has been functioning in the windows industry for donkey years and has a generally accepted service executed by experienced window specialists. For more information, you are requested to call over 0800 246 5843 or visit .


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