If you find yourself crouched low to gravity, feet hip width apart, abs firm, elbows tucked, arms ready to lift and you’re not a sumo wrestler, you may have a problem of stuck windows.
Don’t get stuck inside this winter. If you’re wrestling with old or new windows you can do something about it before winter arrives. First, understand that humidity causes wood windows to swell, accumulated dust causes tracks to increase friction, and loose or faulty tension springs fail. It’s also possible that the installation wasn’t done correctly. If the window wasn’t installed perfectly square, if too much insulating foam was compressed in the wall cavity, or if setscrews weren’t properly adjusted - your window can be hard to open.