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Define Single Hung Window (or Fixed Window)

By Lee Wallender, About.com

Definition: A single hung window is the most basic type of window available. The single-hung window consists of a single pane of glass that covers the entire window space and does not move. Consequently, the single-hung window is sometimes called a fixed window.

Single-hung windows are available in both new construction or replacement window styles. The chief advantage of the fixed window is that it limits air intrusion, since there are no seams that must be blocked with window seals. As time goes by, window seals begin to dry and hard, creating cracks which allow for air seepage. Also, some fixed windows may be less expensive than double-hung or casement windows, due to fewer mechanical parts.
Also Known As: fixed window
Common Misspellings: double-hung window, double-hung window, double hung replacment window

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