Window-mounted solder fume extractor (not just for RVs!)

Step 3 Add weatherstripping on edges of window panel

Add strips of weatherstripping or other compressible foam material around the edge of the window insert panel to seal out the weather. You'll probably find that the self-adhesive weather stripping doesn't attach too well to the crumbly foam edges, so you might want to put tape around the edges first so that the weatherstripping's adhesive can stick to it.

I used strips of Gorilla Tape to hold the foam down on mine.