This convenience is making them a perfect alternative (both stylistically and function-wise) for a modern-day house. Initially, unlock the window by turning the locking mechanism(located in the center of the 2 sashes) counterclockwise. Next, slide the lower sash about three inches towards the top of the window. A sash can be in a square or rectangle-shaped frame.

Double-hung windows which are hardly cracked at the bottom when open. They are considerably more secure for little kids than single-hung windows, which can be raised high enough for a child to fall right through. Double-hung windows are also one of the safest window options for owners of felines, canines and other small family family pets - single and double hung windows.