What is placed around a chimney to prevent leaks?

Chimney flashing is a type of material that is placed around a chimney to prevent leaks and water damage. It is typically made of metal, such as aluminum or copper, and is installed along the edges of the chimney where it meets the roof. The flashing is designed to create a watertight seal to prevent water from seeping into the roof and causing leaks.

In addition to chimney flashing, a chimney cap or crown can also be installed to further protect against leaks. A chimney cap is a metal or masonry cover that is placed on top of the chimney to prevent rain, snow, and debris from entering. A chimney crown is a sloped concrete or masonry surface that is installed at the top of the chimney to direct water away from the flue and prevent leaks.

Regular inspection and maintenance of chimney flashing, caps, and crowns are essential to ensure they are functioning properly and prevent water damage to the roof and chimney. Homeowners should check for signs of wear and tear, such as cracks, rust, or missing pieces, and make repairs as necessary to prevent leaks and costly repairs in the future.