I just purchased a Winnebago Sightseer and I am having a problem with dampness in the outside storage bays. This happens when I am parked. Has anyone else had this problem?
Check that molding that runs along the top of the bay doors at the hinge. There should be a bead of sealant on the top side of the molding. In time it will leak and allow water into the bay.
I checked the bays today while it was pouring down rain and both sides were dry. This weekend while camping in North Georgia, the inside tops of the bays under the living room slide were covered in condensation and it was dry outside. Might be that all the sides of the bays except the top are covered in carpet. I'm guessing that the top is exposed to elements and the temperature difference between the outside and inside of the top piece causes condensation.