Barry, that could be roofing tape on that other trailer.
Like this:
http://www.eternabond.com/products.asp?type=roof
EternaBond RoofSeal Black
Quote:
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RoofSeal is the best solution for leak repair. The choice of professional roof repair specialists, on virtually all roof types including EPDM, TPO, hypalon, most PVC, modified, all metals, even copper...
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I've used a little of it on my hovercraft ($35 for 50 feet, 4 inches wide, found at professional roofing suppliers).
