i don't know that we've done anything different to prevent ours from doing that but most of our neighbors have ended up replacing them uh buying some nice Anderson windows or some some uh name brand windows uh one neighbor went with whatever Sears installs and they have the the different kind of window that the kind that you can tilt out either pane and and raise or lower you know lower the top down or the bottom up or tilt it in both of them tilt in so you can clean them or and it's a real strange