I want to re-do the seal all around the edge trim of my '94 Minnie Winnie. Winnebago has a part #072889-20-000. Is there something at Home Depot or Lowes that I can used that works as well?
That or any other sealant will help your situation, that section will have to be rebuilt. After rebuilding, all that other junk will have to be cleaned off before it can be sealed properly. The leak wasn't there anyway it was up higher and ran down.