Product view
See the single-hung windows itself
The isolated product view keeps the sash arrangement and operating geometry clear before the room-fit and installation questions begin.

How it operates
The short answer
The lower sash moves vertically while the upper sash remains fixed in the common configuration.
Common uses
- Rooms suited to vertical operation
- Projects comparing a simpler hung configuration with double-hung operation
Ventilation, view, and daylight
- Ventilation is normally through the lower movable sash.
- The meeting rail divides the view horizontally.
Cleaning and maintenance
- Exterior cleaning access depends on story, product design, and sash features.
Installation and performance considerations
- Opening measurements and frame condition govern replacement scope.
- Compare rated product values and air-leakage information for the exact configuration.
Compare nearby choices
Style comparison
Double-Hung Windows
Single-hung products generally keep the upper sash fixed; double-hung products generally make both sashes operable.
ExploreSources
Sources
- Window Types and Technologies — U.S. Department of Energy
- Window Energy Performance Ratings — National Fenestration Rating Council
