I'm wondering how other facilities handle this safety issue. Are Windows locked in such a fashion that they can't be open in an emergency? Until recently, sliding windows at mom's facility were secured by an extra drill hole lock that could be removed with an inserted screw. Now, a screw has been drilled into the top frame and bottom lock has been permanently attached and can't be removed which prevents the window from being opened more than 4 inches. While maintenance has tools to remove these locks, it wouldn't be feasible in an emergency such as fire or earthquake.