New casement windows are some of the most overlooked products on the market. So many people know of single or double hung windows most of the time the benefits of hinged or casement windows goes overlooked. New casement windows open to the side instead of up and down, and it's because of this fact that they make for such excellent ventilation. When installed on the face of a house with a nice breeze, you can capture the full effect of a casement window. Not to mention they are very efficient due to not having moving parts other than a simple hinge.