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If you’re a homeowner being faced with the prospect of purchasing and installing new windows, you’ll likely encounter multiple options. Before sitting down with a specialist, it might benefit you to familiarize yourself with the terminology so that you can make an informed decision.

Triple Pane

This refers to windows that have three layers of glass, the middle of which is typically surrounded by an insulating layer of gas such as argon or krypton. They are sometimes referred to as “triple glazed” and provide for much higher energy efficiency than their double-paned counterparts.


This term refers to the ability to resist the transfer of heat or energy. Your home will experience heat loss through conduction (through the glass) and air leakage (through cracks), among other things. If your new windows have a high R-value, this means that they are well insulated.


U-factor is essentially the inverse of R-value. In essence, if your panes have a R-value of 5, the U-factor will be 1/5 or 0.2. Consequently, the lower the U-factor, the better the insulation.

With a clear understanding of the terms involved, you will be armed with the knowledge you need to do your shopping as an informed consumer. There are many other factors to bear in mind, the biggest of which is probably cost. To find out more about which type of window would meet your needs and budget, speak to a specialist.