We have a new 2015 FF 214WSD and I've been on top of the roof a couple times, so my answer is yes. We have a factory installed ladder leading to the roof so I guess they intended it to be walked on. Just step gently and kind of feel your way along. Watch out for the effects of the roof curvature, not really a big thing but different than a flat roof. The Cruiser RV literature says it's ok to walk on the roof but don't sit on chairs up there. Be careful, it's a long way up