I don't have a good answer for using it on rubber roofs. I don't use it on my roof but I don't know if it would hurt it or not. Good question if someone knows the answer.
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Full Time in 2017 Newmar Ventana 4369
pulling a 24' enclosed (Mini Cooper/Harley/Kayak)
(traded 2014 Thor Challenger)
US Army 70-73 Retired LEO
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