I have a 2005 sandpiper fifth wheel that has a leak on the back corner of the slide out, it has affected about a foot of the outside panel of the outside of the slide from top to bottom. On top of the slide it looks like what I would call some sort of tape that has the top skin and the camper sealed it as got a leak in that tape. It looks like that hole tape needs to be replaced. I need some good advice here on what would be my best fix, this has not been leaking long, the wood is still good in the wall. I am not going to get rid of the camper, an will be doing the work myself. Thanks in advance.