VEHICLE BODY ROOF STRUCTURE

An embodiment roof structure for a vehicle body includes a roof side body disposed on both sides of the vehicle body and including a side closed section along a length direction of the vehicle body, a roof ring assembly mounted inside the roof side body and including a reinforcement closed section adjacent to the side closed section along the length direction of the vehicle body, a moving guide portion mounted to the roof ring assembly, and a moving roof detachably mounted on the roof ring assembly and configured to be slidable along the moving guide portion.