Fiberglass roofs are considered better. But by excluding rubber roofs you are going to cull out 95% of your travel trailer choices. You almost never see on hear issues of rubber roofs failing, water gets in at improperly protected penetrations thru the rubber roof.
I would not base my purchase on what type of roof or frame the unit had as the first factor. Floor plan, features, weight, tank capacities would all rank higher in my decision. If then I found two contenders and one had a better roof and or frame, then that may sway my decision.
I have never heard or seen of Venture RV until now. I looked at pictures on line. Nice looking camper. Does not appear to have a cambered roof or gutters on the side but rather is rounded from front to back so I assume all the water runs off either accross the front or down the back wall.
