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Old 04-22-2018, 09:19 PM   #1
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RV Roof Replacement

Howdy. I have a 1997 National Tropical still with the original roof. Last month when I went on top to give it a cleaning I felt a couple of spots that were kind of spongy so I'm probably going to take the roof off and replace the wood. My question is have any of you replaced the sheet EDPM with a roll on coating and if so what did you use? I know there's liquid EDPM that I could use but how about other coatings?

Thanks for your advice.
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Old 04-23-2018, 07:47 AM   #2
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Jim,
I just resealed my roof, and when I was doing the research for what product to use it was my impression that all of the liquid epdm products were intended to be used over an existing rubber or metal roof. Iíve not heard of anyone using the liquid epdm coating over a wood roof without the epdm membrane. Thatís not to say it canít be done, but it seems odd to me to do the roof the way youíre talking about.

If I removed my epdm roof membrane to make repairs to the wood underneath I believe I would be inclined to order a new sheet of epdm roofing membrane and put that on. It seems like a lot of work, but after looking at some videos online it looks doable if youíre somewhat handy and have a helper - then youíd have a brand new roof.
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Old 04-23-2018, 08:25 AM   #3
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The liquid EPDM is a coating that extends the life of your rubber roof and has to be used with the cleaner activator, If your roof does not have any holes or tears and is not leaking you can use the cleaner and when dry roll on the liquid roof coating. Go to the dicor web page and read the install directions. also reseal all vents and sunroof etc and wait two weeks for the self leveling to cure before coating the roof. I did mine last summer and have enough to do it again and will do it this summer. I replaced a roof on the class A I had before and it was a big job by myself with installing a layer of wood on top of the existing wood glueing it down.
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Old 04-23-2018, 08:30 PM   #4
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Guys I'm not talking about the Dicor product that you recoat your roof with but Liquid Roof from EPDM. It CAN be used on wood roofs and is cheaper and easier to apply then the roll EPDM. I know another RV'er who replaced his complete roof and applied the Liquid RV Roof from EPDM with excellent results (EPDM gave him instructions on how to do it). I was wondering if anyone had used any other product rather then EPDM.
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Old 04-24-2018, 02:01 PM   #5
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I would use a TPO membrane instead of more EPDM or any brush-on product. Dicor DiFlex II is a TPO product, but there are other brands.

https://www.pplmotorhomes.com/parts/...rane_TPO-95B40

https://dicorproducts.com/product/di...i-tpo-roofing/
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