Triple glazing can offer considerable energy-saving improvements over double glazing. However, the right combination of glass types and overall unit thickness must be used to achieve maximum performance. Significant thermal efficiency gains can be achieved with 36mm thick triple-glazed units over industry standard 28mm double-glazed units. Ultimate performance can be achieved with 44mm triple-glazed units.
Whilst UK window frame systems have historically been designed to accommodate 28mm double-glazed units, many new options can comfortably glaze 36mm and 44mm without compromising aesthetics.
An 'A' rated window on the WER energy rating scale typically has a double glazing unit with a performance U-value of 1.2W/m2.K.
Triple glazing units can be as low as 0.5W/m2.K. This lower heat loss improves the overall window performance and saves energy.
Triple glazing can also provide all the additional benefits that modern high-performance glass offers. These include:
- Security
- Solar control
- Noise reduction
- Reduced furniture fade
