Sliding windows glide open horizontally from one side, providing easy access to fresh air. Sliding windows are popular in contemporary-style homes as well as in basements or rooms that need extra ventilation. They are a great alternative for tight spaces or limited spaces because they slide horizontally into the grooves behind the fixed panes.In sliding windows, two or more frames, slide horizontally on tracks to the left or the right. The windows are slightly raised above the track for a smoot