Casement windows are a type of window that are hinged on one side and open outward, typically operated with a crank handle. They are popular in both residential and commercial buildings and offer several advantages over other window types.
Multi-chamber frames can support larger sealed units making them the most energy efficient style available in Canada. The triple pane sealed units are 1 3/8", which is the largest available in the industry.
All of this translates to a lower U-value (heat loss) and a higher solar heat gain (heat reflection).