Yes, we were also told about inspecting the roof yearly, which I did with no problems found. All sealant (caulking), etc still looked pliable and good. Even when I found where the leak was coming from, there was nothing that you could visually see with the eye. So, what are you supposed to do? When we were on our 1st trip with the camper, we had water leak in through the overhead cabinents in the bedroom and soak the bed. Upon return we immediately took it to the dealer, who could find no problem. since then we have had no problem with a leak there, so go figure?