Double Glazing Doors: Thermal and Sound Insulation

2007-11-09 05:11:17

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If you live in a place where the indoor and outdoor temperature difference is quite large, then you might want to consider installing double glazing doors in your home. Like double glazing windows, double glazing doors help to minimize heat losses during cold weather and heat gains in hot summer months.

Double glazing doors consist of two layers of glass, instead of the traditional single pane. The installer seals the two panes around the edges with a spacer bar, or folds them over and welds them. The space between the two panes may be a partial vacuum, or may partially contain an inert gas such as krypton, argon or xenon.

You will find double glazing doors installed in patios particularly useful, because you can view your gardens without any obstruction while giving you access from inside your home to the outdoor. It is usual to fabricate double glazing doors as thermal break doors; this minimizes condensation forming on the inside panels. The main door frames are fixed to aluminum facings through plastic sections, which then act as a thermal break.

In addition to reduction of heat loss and gain, double glazing doors can also be employed to provide sound insulation. However, if you use double glazing doors to reduce sound transmission, be aware that there are three factors that affect their performance. You will have to watch for sufficiently air-tight insulation, the weight of glass used, and the volume of the air space between the glass layers.

To achieve better sound insulation, you should be prepared to pay for the double glazing costs because the heavier glass is the recommended material for this. The air space between the panes must be about 50 to 300 mm apart. Absorbent lining to other parts within the air space can also increase the sound absorption capability of double glazing doors.


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