Ridge vents and methods of their use are provided. In one embodiment, a rollable ridge vent for covering an opening of a roof ridge includes: an elongated flexible member having a central panel portion, a pair of lateral edges and a pair of transverse ends; a pair of vents disposed proximate to and inward of the lateral edges; a plurality of support ribs for supporting the central panel portion above the roof; and a pair of baffles disposed laterally from the vent openings, each pair of baffles comprising a plurality of baffle sections depending from the bottom surface of the central panel portion and oriented at an oblique angle to a respective proximate lateral edge.