I have windows that were poorly installed -- the outer frame isn't square and therefore there are some uneven gaps where a cold draft comes in. I live in New England, so this is a problem for us. I've read about many solutions, such as using foam, but that will be too wide, I think.
I'm posting a photo that shows the gap -- you can see a small gap, about 1/8", to the right of the fuzzy material. Whatever I put in there needs with withstand the rubbing of the window going up and down. I want to find a solution that fills that gap as opposed to using a film over the entire window.
Please let me know if there are products that could solve this draft issue.