Abstract: A ridge ventilator for covering an open ridge of a roof while promoting ventilation of a space beneath the roof. The ridge ventilator has a sectional body having a first side and a second side, a number of partitions extending across said body between said sides, as well as a first end and a second end. The vent body has a width between said sides to permit said body to be laid over and cover an open ridge in a roof formed at the peak. The body also includes a recessed middle portion in a top face of the body, the recess being sized and shaped to accommodate roofing cap shingles. The body also includes opposed raised and curved, in side view, air foil side sections; which have a grill to permit air to pass therethrough between a space beneath said roof and the outside, the air foil side sections being sized and shaped to create, in a wind passing over the air foil sections, a low pressure adjacent to the grill to facilitate drawing air out of the space.