The invention relates to a vehicle roof with a movable roof part, which by means of a tilt lever, which is connected in an articulated manner close to the rear edge of the roof part, can first be tilted into a ventilating position and can then be slid above the vehicle roof or above an at least partially fixed roof part for the at least partial release of an opening in the vehicle roof, the movable roof part being continuously supported in the area of its rear edge when it is slid from the ventilating position backwards and the movable roof part having a continuous side skirt in the area of its side edges. In order to ensure reliable support and at the same time a pleasing appearance, the rear edge of the movable roof part is continuously supported during the tilting movement and the sliding movement by means of the tilt lever and the side skirt, which is independent of the support system for the movable roof part, lies continuously adjacent a seal arranged at the edge of the roof opening or close to the upper end of the guide rail during the tilting movement and during the sliding movement.