Looking for a weathertight window that also allows you to get the most from a nice breeze? Choose a casement window. The casement window's seal meets the sash straight on for a weathertight seal. This is Andersen's most energy-efficient casement window.
Hinged on the side, this window opens horizontally allowing for full ventilation from the top to bottom of the window opening. With the sash extended, casement windows can catch the breeze and direct it into the house for better airflow.