Hey everyone, new here, my wife and I are still in our first popup, which we got 3 years ago. The thing has been nickle-and-diming us since we got it, so I'm doing some final repairs before selling it this spring/summer (hopefully). It's a 2000 Coleman Fairview, big dual-king monster with a center slide. Shortly after we got it, it developed a leak in the center seam. This was evidenced by water draining into the rear light fixture, filling up with water, and then dribbling onto the interior of the roof canvas while folded up. Spared damage to the rest of the pop-up, but left a nasty stain on the canvas roof. Anyway, we got it re-sealed, and the leak is gone. What I have left besides the big brown ugly stain, is the ceiling panel at the rear which is rippled from the water. I've seen a number of threads on here on to ascertain that the ceiling is probably vinyl covered luan. My question is this: Would the vinyl shrink up under heat (from a heat gun) and tighten back up? If so, it might discolor, but that's nothing a paint job couldn't fix. If not, is there any other solution to make this repair without having to do a complete disassembly of the ceiling/roof? Bonus question, any ideas for cleaning that bit ugly stain out of the ceiling canvas?