Hopper Windows
Hopper windows are the reverse model of the Awning Window. Hinged or pivoted at their bottom, they open inward and downward from there, so the entering air flows upward. Operated by a lock handle at the top of the sash, their most commonly used in basements. Screens and storm windows are installed on the outside.
Advantages
- Hopper windows provide almost 100% of possible ventilation.
- Both their inner and outer services can be easily washed from the inside.
Disadvantages
- Hopper windows interfere with draperies and curtains and are impossible to darken with shades when opened.
- Because they stick out inside the room or hallway they can cause traffic problems in living areas of the home.
- Because of their unusual open position they can be difficult to exit from in case of an emergency.