ScottG wrote:
Around that time there were a lot of RV's having problems with the adhesive bonding the wall. So it may not be a water intrusion problem at all.
My previous 2005 fifth wheel delaminated most of the rear wall about 8 years after I purchased it new. I was very meticulous about maintenance and roof/seams recaulking. My insurance refused coverage for repair so I paid for a local repair and when the rear filon was removed it was not bonded to luan but glued to cardboard sheeting and the repair shop said it was glue failure most likely caused by residual humidity build up over the years. Upon contacting the manufacturer for my brand and asking about the cardboard instead of luan I was informed it is not cardboard it is "compressed fiberboard"......how about that!