dougrainer wrote:
I want you to take the 5th wheel and drive 60 mph and have a friend follow you by the side in his auto. Have him get ahead of you and be able to observe the front roof top cap and see if he sees the rubber billowing up in the front. IF this front area behind the front cap are the only bubbles, odds are air is getting under that front cap seam. When this happens the front seam appears to be tight with no gaps. But at 60 mph, the air does get under and cause this type problem. I did not realize until I read your post again that the bubbles appear only in the front few feet. I thought you had this all over the complete roof, which is why I stated cleaning products. Doug
Thanks again.
We can certainly try to arrange the test you suggest but it would be a pretty significant undertaking for us.
Our RV has been stationery since 12/6/20. The bubbling has increased significantly since I first photographed it in mid-January. I think it rather unlikely that wind blowing would have created additional bubbling. I would also find it surprising that wind would create a great many small, apparently individual, independent bubbles as opposed one or two large areas. That just doesn't strike me as likely. Would you disagree?
BTW, we have found a few bubbles at the rear of the RV. Those are near where the roof ladder attaches. The lap seal there, as everywhere else, showed no signs of cracking last time I looked. I am not convinced there is much likelihood of water getting in there and cannot see how wind would get in there under any circumstances.