I own a model Sunset Creek 26.8 foot pull behind camper with a LR/DR pull-out. This camper has an all aluminum housing (wall and ceiling studs). Only my wife and I use this camper and for 6 months of the year it sits at our Ohio river campsite,after that it is in our barn for the winter. I have owned to many pull behinds to mention so I know very well how these campers are built, plumbed, and wired enough to keep them operating safely. This Sunset Creek however is my first new camper, so I can tell you I had no reason to inspect the rubber roof other than climbing the ladder to make sure my power vents I ordered were installed and there were no obvious defects or damage to the roof. So for the last 4 years we stood on a ladder, cleaning the roof with a light detergent and a soft brush on an extended handle and hosed it off. This year however I treated the roof to some Aerospace 303 sealer. I had to step onto the roof to apply this sealer and all looked very good until I reached the back bedroom corner. The picture I’ve included shows the area where the roof is soft and in the corner (4”x 4”) there is only the rubber membrane. There are no soft spots surrounding any vents or skylights that lead to this corner and there is NO visual damage or soft spots to the interior ceiling or walls inside the camper at this rear bedroom area. I mentioned earlier of my knowledge of how campers are constructed, I will have to admit I have never torn off a roof but I have repaired an interior ceiling before. I am scheduled to hear from Sunny Brook RV this Saturday and get their opinion about my roof. Any one hear of termites infecting a camper? Any suggestions as to my next step on a camper I still owe money on will be appreciated.