Ok, I can see this topic gets beaten to death and I have read a ton of threads....but am still confused. I am a new (used) trailer owner .... 2015 Forest River Rockwood Freedom 232XRT. 1. The roof does not currently leak 2. The caulking on the top of the roof is weathered (stored 3 years outdoors in Las Vegas) and breaks off to the touch 3. Would like to reseal So my questions: A. The caulking down the middle two-thirds of the roof appears to have been applied before the side rail was attached to the roof -- see the black looking areas. There is no bead on top of the rail, so it looks like the rail was installed and when pushed down, the caulking oozed out the side a bit. HOWEVER, as in the photos, the ends of the roof show a large white bead of caulking. Should I reapply caulking so that I have a similar large white bead the length of the roof? I just don't understand why it was not manufactured that way. B. Removing the caulking (referring to the black colored areas): Should I scrape out the old caulking under the rails (would need to use a dental type tool because it's really tiny) or just clean up the areas on the outer edges? If you made it this far in my long post, my thanks and appreciation!