The windows in this house are very old and extremely drafty. Last year I used those window kits with the thin plastic sheets. They didnt help much so this year I bought thicker plastic rolls as well as foam strips for the windows. The problem is when I put a strip of foam on the bottom/top of the two window sashes ( or even just on one ), the lock parts dont line up and I can't lock the windows ( plus some of the windows are so old that if they dont get locked, the top window sash falls down. Any suggestions?



