Double-Hung Window
A window with two sashes that slide vertically within the frame, with both the upper and lower sashes operable.
Double-hung windows are a traditional style common in older Canadian homes and colonial-style architecture. Modern versions feature tilt-in sashes for easy cleaning from inside. Single-hung windows (only the bottom sash operates) are a more affordable variant.
Double-hung windows have slightly lower energy performance than casement windows due to the sliding seal design, but they are well-suited for locations where a projecting sash would be problematic, such as above walkways, near decks, or facing busy streets.