Chimney chase covers are often overlooked when homeowners consider their fireplace maintenance. This is because, for the most part, chimney chase covers are only used with factory-built chimneys rather than masonry chimneys. Unlike a chimney cap, chimney chase covers are used on chimneys made of metal, wood, or vinyl siding.
Like a chimney cap, a chimney chase cover is designed to protect the fireplace from the elements, as well as to prevent birds and other animals from entering the chimney. When undamaged and correctly installed, their angled tops prevent water, snow, and ice from accumulating around the top of the chimney, instead directing it to flow
harmlessly onto the roof. Aging chimney chase covers can sometimes cause unsightly, rusty staining to the sides of a chimney. Likewise, an ill-fitting or broken cover can lead to a number of problems such as water damage or animal infestation.
TOP HAT will be able to help you determine if your chimney chase cover needs to be replaced. If it does, they can also aid in the selection and installation process for a new cover.
WHEN SHOULD A CHASE COVER BE REPLACED
Chimney chase covers, especially those that were improperly installed or made out of cheap materials, may begin to rust in as little as five years. Unlike chimney damage, which is easily visible without climbing onto the roof, chimney chase cover decay may be harder to spot.
There are two major red flags that indicate a chimney chase cover needs to be immediately replaced. The first is any signs of water or moisture in the fireplace structure. This can also include dripping sounds in the chimney after a rainstorm or when snow is melting, along with the walls of the firebox itself feeling damp. The second red flag is rust stains on the side of the chimney structure itself. When this happens, the galvanized coating of the metal has been completely eaten away, and the metal has more than likely begun to pit, or rust through.