Chimney crown vs. chimney cap: what each one does
Distinguishing between chimney crowns and caps helps ensure your chimney is well-protected from weather elements and potential damage.

2 min read
Understanding Chimney Crowns
A chimney crown is a slab placed at the top of the chimney to cover and seal the top opening, preventing water from entering the chimney system. It's typically made from concrete or cement.
The crown slants to direct water away from the chimney walls, protecting the masonry from water damage and preventing leaks that could lead to structural issues.
Functions of Chimney Caps
Chimney caps are protective coverings that sit on top of the chimney crown. These metal structures prevent rain, debris, and animals from entering the chimney.
Caps also reduce downdrafts by allowing smoke and gases to escape while keeping external elements out. They are essential for maintaining chimney safety and efficiency.
Maintaining Crowns and Caps
Regular inspections ensure the chimney crown remains crack-free and securely attached, maintaining its protective role. Repair any visible damage promptly to prevent further issues.
Chimney caps should be checked for loose fittings or rust, ensuring they function properly. A well-maintained cap and crown are crucial for extending the lifespan of your chimney.
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