Forum Discussion
mlts22
Aug 20, 2013Explorer II
I'm strongly against TPO/EPDM. Fiberglass for the roof and cabover is a must because without it, water will get blown into the seams and start damaging/rotting the motorhome quickly. A rubber roof just has too many seams at places where water can pool and puddle, and if the Dicor or caulk cracks, it has an entrance in, while a fiberglass roof tends to be shaped around the top corners, so the seals are less crucial to preventing water damage.
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