[snowhawk2]

This is our third Montana and the first with the arched roof. The coach was delivered November 2012. This past weekend I cleaned the roof and noticed there are places where the heads of nails under the rubber roof are visible, some so much that I'm concerned that over time they might pop through the rubber roof. I also noticed that some of the cross members seem to be more prominent in height as they seemed raised up a bit. The prior Montanas had flawless roofs. This one seems less sturdy and more flimsy, and has these observations. We live in New England and we have a heavy snow pack last winter and I was the only person I know that very carefully removed the heavy snow from their camper's roof. Any thoughts? Is this normal what I'm seeing?