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Old 08-09-2016, 08:51 PM   #1
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RainKap Roof Gutter System

Is anyone using the Rainkap trim on their roof line? I installed this 2 years ago and it really works great to keep the water away from the RV walls to eliminate streaking. But, the Rainkap itself has turned from pure white to an ugly mold or mildew look on both upper and lower sides. I tried Tilex and it doesn't help at all.

Has anyone else had this problem?
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Old 08-09-2016, 10:25 PM   #2
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You probably need some black streak remover instead of Tilex:
Protect All Black Streak Cleaner and Degreaser 32 oz. spray - Thetford 54032 - Black Streak - Camping World
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Old 08-10-2016, 12:21 AM   #3
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THOR #4486
Once you get them cleaned, you might want to consider spraying them with a clear lacquer or polyurethane which should project them from future mold growth.
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Old 08-10-2016, 02:52 PM   #4
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Originally Posted by schreinertms View Post
Once you get them cleaned, you might want to consider spraying them with a clear lacquer or polyurethane which should project them from future mold growth.
Thanks for the ideas. I will try the black streak remover to see if it cuts thru the ugly to get back to white. It looks pretty bad as-is. I was actually considering painting them with Flex Seal (brush-on) if I can't get them clean.

I'll report back with results once the weekend rolls around...
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Old 08-13-2016, 05:45 PM   #5
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Quote:
Originally Posted by JamieGeek View Post
You probably need some black streak remover instead of Tilex:
Thanks for the suggestion on black streak remover Jamie. I tried it today and the black streak remover I had (not exactly the brand you recommended) did make quite a dent in removing the mold from the rainkap. Attached is a picture of the before and after. I did one side of the RV this morning (in the hot FL sun) and it made a big improvement. Although, it didn't remove much of the mold from the outer edge of the cap. Maybe it needs more elbow grease. I'll continue when I get a cooler day to do it.

Thanks again!
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Old 08-13-2016, 09:31 PM   #6
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maybe give a scouring powder a try.... barkeeper's friend or similar
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