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What is the difference between a Casement and a Double Hung window?

April 26, 2017casement double hung window

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Posted

What is the difference between a Casement and a Double Hung window?

2 Answers

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Michael Pearce Posted

A double hung window slides up and down. A casement has a hinge attached to a frame and it opens outwards or inwards. In terms of energy saving a double hung would work better. But we have Champion windows with energy-efficient glass and that can significantly save on energy bills, too.

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Aesthetics and operation are drastically different, as is energy performance. A casement window has a cranking mechanism that opens the sash to a perpendicular position when fully opened. Generally speaking casements are more energy efficient and perform better in high wind applications. Double-hung windows on the other hand operate in a horizontal fashion sliding up and down in the frame. Due to their design double-hungs do not perform as well as casements when it comes to energy performance.