A covering apparatus protects motor vehicle occupants from an openable roof of the vehicle in which the roof is movable along an enveloping surface between a stored position in which the roof is opened and a closed position in which the roof is closed. The apparatus includes a cover movable between a rest position in which the cover is stowed and a protecting position in which the cover is extended, wherein the cover moves between the rest position and the protecting position without intersecting the enveloping surface of the roof prior to or during movement of the roof between the stored and closed positions of the roof. In the resting position, the cover is located between the vehicle interior and the enveloping surface formed by the opening and closing motion of the roof.