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Old 10-01-2014, 06:50 PM   #1
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Question on Roof Maintenance

I just finished my first year of RVing and I have questions on roof maintenance. I have a 2014 class C sunseeker, fiberglass roof. Concerning caulking if there is no visible deterioration in caulking around AC, vents, etc. is it common practice to put another layer of caulk around the openings or is it best left alone? Also, what is the best type/brand of caulk or sealant to use? One other question are there any "not so obvious" areas that should be inspected that an inexperienced RVer such as myself may overlook? Thanks in advance for any and all advice.
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Old 10-02-2014, 05:30 AM   #2
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Check with Forest River and see if they have a recommendation. Usually it is not a good practice to go over existing sealant.

Winnebago has several callout sheets and sealant callout sheet.

http://www.winnebagoind.com/resource...%20Sealing.pdf
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Old 10-02-2014, 11:18 AM   #3
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No, don't coat it just because the year has gone by. Clean up the roof, then look for cracked or loose caulk and just touch up where needed. Pay attention to the caulk where things protrude through the roof or are screwed to it, as well as the side and end seams. You may have nothing to do at all, but its wise to be vigilant.
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Old 10-02-2014, 05:55 PM   #4
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Dicor recommends to apply lap sealant over the old sealant for minor cracks, and to remove only loose caulk prior.

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Old 10-06-2014, 07:25 PM   #5
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Now would be a good time to put eternabond tape over all the seams. I would seal the edges with proflex since you have a fiberglass roof. If you do this you won't have to do much to your roof for years, and you will be preventing and caulk failure/roof leaks.
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Old 10-07-2014, 03:49 PM   #6
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I use Rustoleum spray sealant(white) to cover small cracks. The label states it is safe for "rubber" roofs, fiberglass, and TPO. It sprays on thin and seeps into any tiny cracks, then thickens to a rubbery sealant.
Now if the existing sealant is coming loose and pulling away, or is dry and hard, I use Eternabond tape. It will last as long as your roof if/when properly applied. EternaBond Video Library
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Old 10-07-2014, 05:32 PM   #7
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Air conditioner is not caulked, it uses a different type of seal and I would not recommend you try to caulk around it as you will cause more troubles than you will cure.

As for the rest.. I would not caulk unless it appeared necessary.. but then that is me.. I do mop it with Spic & Span from time to time (Spring/Fall)
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