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Old 01-20-2010, 10:43 PM   #1
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Opinions needed - older fiberglass roof repair

My '93 Winnebago Vectra has developed small 1/4 to 3/8 inch long cracks in the fiberglass roof primarily along the roll from horizontal to vertical at the edges. I am contemplating coating the entire roof with Kool Seal Elastomeric roof coating. Any reason not to do this? And, is there a better solution?
Thanks in advance,
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Old 01-21-2010, 03:33 AM   #2
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The fiberglass is relatively thin there and will eventually break thru. The repair is to install a new radius from rear to front cap and add molding as a seam on the flat portion of the roof. Untill then you might want to install Eternabond tape where needed to keep the water out.
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Old 01-21-2010, 09:06 PM   #3
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"The repair is to install a new radius from rear to front cap and add molding as a seam on the flat portion of the roof."

Mike,

With all due respect, our MH roof was repaired in this fashion and it caused problems. The moldings and end caps created a rectangular "lake" whenever it rained or had heavy frost. Unless we were moving the water would pond on the roof for days and freeze thaw cycles caused havoc with the sealant. We eventually had the moldings removed and the radius material installed across the entire roof from gutter to gutter. Now water runs off unimpeded and we have a fraction of sealant to maintain.
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Old 03-31-2010, 06:56 AM   #4
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You better check a new radius from rear to front cap. Then add molding to some corner portion of the roof. It is better for you to check who is repairing your roofing.
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