![]() Windows that meet the minimum ER ratings for their respective zones are considered to be efficient. ENERGY STAR has specific requirements for different climate zones in Canada. A cross-section demonstrates the insides of a triple pane window.Īll windows in Canada can be compared by their Energy R ating (ER): A window’s ER rating is a measure of its overall performance, based on three factors:Ģ) heat loss through frames, insulating glass unit, and glassģ) air leakage heat loss. In this post, we will outline the benefits of triple pane glass for the window replacement market. Even then, it is impossible to make double-pane windows efficient in some climate areas in the country, without additional features to improve their performance. ![]() When companies speak about windows, they usually refer to the number of panes of glass in the window unit: single glazed means one pane double-glazed – two panes triple-glazed – three panes.įor harsh Canadian climates, it is recommended that all windows should be at least double-glazed. One of the most commonly asked questions we receive is about the benefits of triple-pane windows.
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