Headliner failure

I had the same problem in my 95 Holiday Rambler Endeavor. Spots were dropping here and there. Same material with the foam on the back. Failure of the glue to hold is very common. We optained trim strips at Lowes. Painted them to match the strips installed by the Mfg every 5' or so, and put 2 on each side of those the length of the coach. We drilled and countersank screw holes and I even painted the screw heads to match.I think we mmight have pulled the liner tight here and there as we put them up. After we were done, couldn't tell that the liner had started drooping. Probably cost a $100 or so for all material. It was a 2 person job to do - one holding, one using the screw gun. I doubt if the glue will work, at least in Fl's heat it won't.

Google the problem, lots of info I found that way and probably lots of posts on here. Many of the posts had pics showing how they did it.

Good luck,
Ron S