roof rot on Jayco-how to detect?

[csdrab]

We have a 2005 Jayco Jayflight we purchased new from dealer. Took it in last year for yearly maintanence and we were told that we had roof rot (over 1/4 of the roof). We have no water leaks in camper anywhere (after going through summer and winter months this year) they said they detected the roof rot by walking on roof. In order for them to determine if the rot is from damage or manufacture defect they have to peel a portion away (200 dollars). The only way insurance will pay is if it's caused by damage. SO my question is.. is it possible to detect roof rot by simply walking on the roof? Thanks for any input!
Christa

[450Donn]

IMHO NO! The roof material is probably in the range of 1/4 inch ply wood and if it is that thin it will be very soft to walk on. Wood rot could only be caused by a water leak. Sounds to me like a dealer trying to generate work.

[SuperGewl]

Run real fast to another dealer, go to Camping World and have them do a pressure test on the unit. If the roof has rot then it should bubble up in that area. If nothing else have them check the roof by walking on it.

[edwardt48]

Very easy to detect defective roof by walking on it also by foot going through, something leaked . May have been a small leas and all absorbed by particle board it can become a large

sponge

.