I have a 92 Vacationer cab over camper with fiberglass siding. I have checked for water leaks and am sure there are no leaks. I believe this is a heat expansion problem. I think the fiberglass is glued to Styrofoam. Does this sound right? I know that Styrofoam reacts to certain chemicals and i am thinking of injecting glue to fix the problem. Does anybody know what type of glue i should use? Or has anybody had this problem and come up with a fix? I would call the manufacture but they are no more. Otherwise the camper is solid.
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Nor'easters Club Workhorse Chassis Owner iRV2 No Limits Club
Join Date: Oct 2004
Posts: 30,785
Welcome tommosazz to irv2.
Most fiberglass is glued to a plywood backing. The age of your camper sealants maybe dried out under moldings and seams on roof and seal around a window. Water will travel to where you see it exposed on interior of your coach.
Where exactly is the leak showing up?
Sorry so long to reply. It is happening above window at the sink. I don't think it got wet. I think the problem is from intence heat . We have 100 deg plus days throughout the summer, and it is on the side that gets the most sun. I keep the camper coverd with one of those breathable waterproof camper covers. Like i said i think it is from the heat all that expanding and contracting and like you said old glue. I dug a little deeper and you were right it is plywood. So what kind of adhesive should i use?
Nor'easters Club Workhorse Chassis Owner iRV2 No Limits Club
Join Date: Oct 2004
Posts: 30,785
I guess you will have your pick with this LINK. The glue for Marine purposes may prove to be the best. Check with a Marine Supply they can help with questions.
I have use Marine Sealants and have work real well.
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