So, I wish my RV lived inside, but its previous life was in Arizona then in Tennessee briefly. You can’t see the fiberglass fibers sticking up.. . If I could I wouldn’t have laid on my belly to seal around the front running lights. Or sat on the roof while sealing the seam that attaches the roof to the front cab . But, after climbing down I sure could feel them. I looked at my clothing and it was covered in fine fibers. NOT a pleasant experience. The next time up I put a plastic garbage bag down to sit on. We store it in covered parking now. It does not leak, but for some reason I feel like it should be protected. I would like to try and prevent any unforeseen problems. The roof is yellowed, though its a 2004 and I dont know what color it was when it was new. The Rv seems to be in great shape for its age and I would like to keep it that way. Sun can be a terrible thing. The roof does not look as nice as Ron’s.