Install the most airtight, durable windows you can find.
To reduce resource use and still choose high energy-efficiency windows, go with frames made of wood, aluminum, fibreglass or a combination of these materials. Of all the available types of windows, the most airtight are casement windows, where all four sides of the sash leave the frame when the window is opened using a mechanism that holds the sash.
Our recommendations :
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Casement (or “crank”) windows offer the best airtightness because of their double compressed weatherstripping, which can be replaced if it breaks. Hanging and sliding windows have to slide along the frame, which prevents the use of such high-performance weatherstripping. The airtightness of newer window models has improved remarkably, however, and adding a plastic film in winter allows them to achieve efficiency similar to that of a casement window.
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Special attention needs to be paid to basement windows: The window well should be below the level of the window, filled with gravel and equipped with a drain connected to the French drain, to allow water to drain quickly.
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Slide window es
CASEM.WINDOW LH ES
Window - Casement Window
SLIDING WINDOW