To put it simply - triple glazing is three panes of glass instead of one or two. We all know that adding a vacuum between two panes of glass produces a large improvement in thermal efficiency. By having an extra pane, you will increase efficiency and reduce noise. It’s already known that double glazed windows make a significant improvement compared to single glazing, so would making the jump to triple glazing make much of a difference?
MEASURING THERMAL PERFORMANCE
While it might not be the perfect way of measuring insulation, the energy efficiency of a window can be roughly described using a ‘U-value’. This value is calculated by dividing the transfer of heat per square meter (in watts) by the difference in temperature across the entire building. The lower this value is, the better.
Single glazing has a ‘U-value’ of 5, older double glazing about 3 and new modern double glazing a U-value of 1.6, which is mainly due to improved methods of double glazing compared to older models. These improvements include: