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 .