Went on a weekend camping trip this weekend. We had a moderate shower for about 30 minutes Saturday afternoon. Saturday night I get into the overhead storage above the bed to grab some clothes and the...
Remove as much of the old stuff as you can without damaging the roof, scrub it as clean as you can, let it dry, and cover with Dicor self-leveling lap sealant.
Or, do basically the same, but finish by covering with Permabond tape.
The Dicor is cheaper, and should do a better job with what you've got. Permabond works best with fairly smooth/level surfaces, and you have some uneven edges to seal.
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