Roof system

A roof system for a vehicle having a roof opening in its fixed roof, comprising:

• a stationary part configured to be attached to the fixed roof;
• guide rails extending in longitudinal direction substantially parallel to opposite sides of the roof opening;
• an at least semi-transparent panel having edges, being supported on the stationary part, and being configured to close the roof opening at least partly, the panel having a drain channel connected therewith for draining any water seeping past at least one edge of the panel;
• a rollo assembly including a rollo cloth having a first edge with which the rollo cloth is connected to a winding shaft, and a second opposite edge to which a rollo beam is connected and opposite lateral edges guided in the guide rails, the rollo cloth being capable of being wound up onto the winding shaft and wound off from the winding shaft to uncover or cover the panel at least partly from below,
• wherein at least a part of the drain channel extends transversely within a path of the rollo cloth and comprises a first sliding surface in contact with the rollo cloth to guide the rollo cloth when the rollo cloth is wound up or off.