Double hung windows feature two vertically sliding sashes held in frame on tracks. Both sashes can open, allowing for variable ventilation.
What are Double Hung Windows?
A double hung window is a single unit made of two operable sashes that move up and down. The sashes slide in frame on built-in tracks and are held in position by either counterweights, springs, or friction. The sashes lock with a single or double latch where their frames meet in the middle.
This style of window has a more traditional aesthetic, often featuring simulated divided lites (window grids). Some double hung windows, referred to as “Cottage windows,” have a top sash narrower than the bottom sash.
Unlike single hung windows, double hung windows allow ventilation on the top, bottom, or both. These windows are easy to clean thanks to their tilting sashes. If located below a projecting eave, it may still be an option to lower the top sash of a double hung window—even during rainfall.