What are Lower Sash Single Hung Windows?

Lower sash single hung windows are a type of window with a single sash that slides up and down. This type of window is different from other types of window options because it has the unique feature of having the lower sash only moveable. The upper sash remains stationary, providing more stability and security than other window types. In addition, lower sash single hung windows are often more affordable than other types of windows, making them a great option for those on a budget.