Customer Care: Frequently Asked Questions
What is the difference between a Casement and a Double Hung window?
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.
