A solution to Double Glazing in wooden windows

Some exciting developments have been made in Double Glazing technology. And finally a solution to retrofitting traditional single glazed wooden windows with a double glazed unit has been developed. It is now possible to have a 6.7mm or a 7.7mm clear double glazed unit. The statistics are impressive.It’s actually better at insulating homes than double or triple glazing with an impressive unbeatable U value of 0.7. The higher the ‘U’ value the less its insulating properties.It’s also better at sound reduction than double or triple glazing with a sound reduction of 35db. The higher the ‘db’ number the better it is at sound insulation.Also the internal pane temperature outperforms double and triple glazed units.

The valuessingle glazingslimline double glazingdouble glazingtriple glazingnew 6.7mm
unitsThick4mm11mm28mm36mm6.7mm
value5.81.91.20.80.7
light transmission9080807180
sound reduction2931313235
internal pane temp with outside temp1c13.6c15.7c17.28c17.7c


This glass can also be fitted  into frames using putty which means that retro fitting into heritage windows is now possible.These double glazed units solve the problem of retrofitting and basically all that I have said and written about not being able to fit a double glazed unit into a wooden window without compromising the integrity of the window itself have now been overcome. I will say though that these units are not cheap but they do come with a 15yr guarantee which is in itself way ahead of conventional d/g units.                                                                                

Published by southamptoncarpenter

Traditional standards. Traditional tradesman. Traditional service. I have been a carpenter for over 45years, 5 year apprenticeship as a boat builder, 2 years as a wood machinist, then a spell repairing furniture and manufacturing reproduction antique clocks. I spent a further 15 years working in a therapeutic environment passing on my skills, before setting myself up as a self-employed carpenter/joiner. As you will appreciate, I undertake a wide range of projects, so scrolling through the site map may well direct you to past work that may be similar to your requirements. The preferred way to contact me is by using the contact page on this site. However you can always ring me during normal working hours. Lead times vary depending on the time of year; small jobs I can often do promptly. I cover Southampton and I am also happy to visit Winchester and Salisbury areas, but a small fee will be charged.

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