B+ motorhomes

Do a search for Eternabond, I did mine a few years ago and have never had a leak and its still like new. Do it one time and you never have to worry about leaks or re-sealing your seams again. Well worth the $50.00 for the 4" by 50' roll ,enough to do your complete rig. The first year I had my B-plus, I cleaned off globs of factory sealant ( not really necessary ) and redid all of my seams with the eternabond tape which last a lift time and I have never been happier. My B-plus stays in the driveway ,uncovered all year long and I never have to worry about melting ice or rain again. The tape is white and blends in with the top pretty good. I go up on the roof every year and give a good look around and I have never had to fix any of the seams yet. If I remember correctly from the Web site that I bought it from it says that it can be put on wet? Not sure but I think I recall it saying so. Whatever, I can't say enough about it because it's a great product and it saves me having to do any major work on the roof every year. The goop that is on there from the factory seems to shrink back and come up allowing water to leak under it .
Good luck, B-Plus