A ridge-ventilation attachment for roof coverings comprising corrugated panels has a bending region 2, which can be bent over the ridge spine, and at least one ridge-ventilation opening. Furthermore, the ventilation attachment is provided with a saddleroof-like central strip and lateral border strips 3, which can be fastened on corrugation crowns 12, on both sides of the ridge, and are each curved to match the top of a corrugation crown 12. In the bending region 2, the curved border strips 3 are provided with a plurality of beads 5, located radially in relation to the bending axis 4 of the ridge spine, and a bead 6, which adjoins the beads 5 and is located perpendicularly to the bending axis 4. IMAGE
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