In fashionable sash windows, you are much more prone to look for a spring balance (or sash stability) process. This is the spring-loaded unit which counters the drive of gravity, in outcome holding your sash window open without the have to have for cords, pulleys and those steel counterweights.  Queen https://kirkh566eui4.blogdemls.com/35443725/the-definitive-guide-to-sash-window-draught-proofing