After investing in a A-frame 10 foot ladder...and looking at the left side of cabover vs right side of my 2014 tioga...I came to the conclusion that as my Class C was rolling down the assembly line there was a man (or woman) who decided to take his or her job more serious than the person on the right side while sealing the seams and screw heads...and no one checked for quality control....anyway I resealed ...so far the overhead deck is still dry ...but we have one more rain coming ..so even though you have a 2 year old r.v. check it for leaks...book says every 6 months..hope this helps other r.v.'ers....
It is hard to really look at the side seam laying on the roof and hanging your head over the side especially if your like me approaching 70!!
