Back before DRV went to the straight-line roof, the fiberglass roofs were a two-piece installation. The main issue at that time was at the seam between the two pieces.
When we ordered our 2010, fiberglass was an option, but we elected to not go that way because of cost and because of the warranties on the two different kinds of roof. While we don't RV like most other people, we aren't in a situation where there is a lot of flex in the roof from traveling nor lots of branches and stuff to worry about poking holes.
I guess that God has just looked out for us because we have had very few issues since living in our Mobile Suites for the last 10 years. Roof isn't leaking, but it could use some kind of coating added. Batteries lasted 8 years before we replaced them, just because of their age. We've even still got the original tires on the trailer, although we did replace the Never-Lube axles and hubs with EZ-Lube ones. When we replaced the axles and had the wheels off, the wife and I checked each one for cracks and couldn't find any either in the treads or the sidewalls.
Terry
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