Roof assembly for a vehicle

A roof assembly for a vehicle having an opening in the fixed roof comprises a stationary guide rail on at least one side of the roof opening and a slidable slide with an operating mechanism. At least one closure element is supported by the operating mechanism and is adjustable between a closed position, in which it closes the roof opening at least partially, and an open position, in which it releases the roof opening at least partially. Each operating mechanism comprises a laterally extending curve rib and a guide member engaging around the curve rib and being attached to a carrier. The curve rib and carrier of the guide member are each attached to either one of the closure element and the slide and are adapted to slide with respect to each other. The guide member is rotatably attached to the carrier so as to compensate for a variation in inclination between the carrier and curve rib at the position of the guide member.