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Hello friends,

​I try to get on my roof fairly regularly to check out how things are & clean & apply roof protectant. However, after this summer I saw something I had never seen on my roof before. I'm guessing that my roof is of the "rubber" variety. It's about 16 years old & is white. It seems to be scaling & flaking off in some places revealing a blueish - black material underneath. I don't believe it's leaking. I'm attaching a photo of this.

​What do I need to do to repair, prevent & protect my roof?

​Thanks in advance,



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The acrylic coating needs resurfacing. What you're seeing is biological growth believe it or not. Clean it with Dicor RPCRPQ primer cleaner and then recoat it with Dicor RPCRC1 roof coating. I did my 36 footer for under $150. Make sure you clean it really well!



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Just 3 days ago brought my RV in for some work. an asked about my roof. Place took look at it, called me an told me about the Dicor. From what i found about it, Usually runs about 80 bucks a gal.

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If it is in decent condition it might be good for the re-coating. I would say you are right on the edge of having a problem. I caught mine just in time last year, albeit after 1 minor issue. I can't do the roof climb anymore safely. I was able to get a re-coat in my area last year for $399. materials and labor. I think I got a good job but would have rather done it myself if I could. It did not included lifting the air conditioner or any vents.

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