Abstract: A chimney cap which includes a roof panel, hanger members mounted on the underside of the roof panel and extending downwardly from the roof panel, and an anchor member pivotally mounted on each of the hanger members. The anchor member includes a horizontal flange in flatwise relation with a horizontal flange of an associated hanger member, an upright shank extending downwardly from the horizontal flange member of the anchor, and a plurality of fluke arms extending upwardly and outwardly of the shank. A perforated cage member is mounted under the roof panel and inside the hanger members and engageable by the horizontal flanges of the hanger members to resist upward bending of the horizontal flanges of the hanger members as fluke arms engage the interior of a chimney liner to hold the chimney cap on a chimney.