On the roof of my 1990 Grand Villa I have developed some bubbles where the fiberglass roof has separated ( delamination ?) from the roof sheeting. I have been more than diligent watching for leaks so do not think it is water intrusion. Fiberglass cap does not show any cracking and deck below seems to be solid. No mushy. Is this fatal? I can be careful when on the roof so pretty sure i won't cause a hole or crack. Plan was to upgrade solar but sure do not want to attach anything if the roof and anything on it coming off this fall.
The collective words of wisdom will be appreciated
Take the best quality photos that you can manage of the bubbles. Try different lighting sources that show the questionable areas from all angles. Try sending a email including the best photos to Xtreme and see what they say. They are the acknowledged experts in fiberglass repair.
Xtreme Paint & Graphics (https://www.xtremegraphics.net)
After addressing the bubbles, just use a stud finder to screw the panels directly into the aluminum roof tubing. That's what I did many years ago and no leaks. You do have to seal where you drilled but the roof already has a couple hundred holes in it. When I first installed ours, I called a couple of shops in Sacramento and asked them about the way they attached the panels and they said they screwed the panels down.
I've been in contact this last week with a member who had 2 panels that were glued down, fall off the roof onto the ground.
Pierce
Is it possible that what you're looking at is an aftermarket rubber membrane or applied coating?
If it's the OEM roof, I think I would drill a couple of holes in each bubble, inject slow setting laminating epoxy into the void and then put a weight on it for 24 hours. Perhaps some wax paper on top of the bubble before the weight is applied. After the first couple, you should have it down. The total thickness is .400 inches with the thin fiberglass over wood.
Pierce
Old Toolmaker. I don't thinks so. Years ago when I sold building materials I sold Formica. The surface seems to have the same thickness and characteristics. I know this isn't Formica, just a reference. This is a stock factory roof. I believe it is a formed fibreglass cap that is affixed to the roof structure by adhesives as there are no mechanical fasteners penetrating the roof. .No treatments. Added note, stored inside all it's life. Not going to panic, lot's of options out there
Will however get a hold of Extreme. Goal for us is to make sure this coach will serve us well until we don't use it anymore. If it needs a roof, small price for this coach
Post what Xtreme recommends for your problem. My guess is some material will have to be removed to get it to lay flat then whatever adhesive is used would have a chance of holding it.
Oh well. Hope for the best, plan for the worst. At least you have a reason for a road trip.