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Old 12-04-2021, 02:15 PM   #1
Junior Member
Join Date: Oct 2019
Posts: 2
Roof repair

I have been lurking of the forum for quite some time. Picked up a 2018 Roo 233S over Thanksgiving. Made a mistake in not taking a ladder to get up on the roof when we inspected it. Got up there today and sure enough, found some roof damage

Anyway, it appears the black tank vent cap fell off at some point in time. The roof liner is intact, but it wasn't sealed to the pipe at all, so water has been getting in. The plywood is definitely rotten around the pipe. There is no interior damage fortunately, so I would like to keep it that way.

I am looking for suggestions on how to tackle this. I'm not adverse to opening up the affected area and replacing plywood etc, but from what I understand the roof construction on this camper is a foam filled plywood shell, which would leave me with nothing solid to attach new plywood to.

Another option would be to replace the vent cap and seal the heck out of it and let it ride. Not in love with that idea, but seeing as the roof membrane is perfectly intact, it would probably work fine for now.

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Old 12-05-2021, 08:43 AM   #2
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Location: Idaho
Posts: 10,638
If the actual roof material is good you might consider attacking this problem from the inside. Seal the area around the vent pipe to prevent further water intrusion. good luck let the forum know how you fix the problem.
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Old 12-05-2021, 06:32 PM   #3
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Join Date: Aug 2021
Posts: 3
I have a 2021 Forest River xlr25 toy hauler and it had a leak from the plastic skylight being screwed down to tightly and was cracked at every screw. I used the stuff in the picture, lay it down at about 1/8" thickness and it worked.
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repair, roo, roof, roof repair

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