Chimney crown vs. chimney cap: what each one does
Understanding the difference between a chimney crown and chimney cap can help in maintaining the overall health and efficiency of your chimney.
What is a Chimney Crown?
A chimney crown is the top element of a masonry chimney. It serves to cover and seal the top of the chimney, preventing damage from weather elements. Made from materials like concrete or metal, it slopes away from the flue to direct water away.
A well-constructed chimney crown protects the brick and mortar of the chimney, reducing water penetration which can lead to cracking and deterioration over time. Therefore, maintenance of the chimney crown is crucial.
What is a Chimney Cap?
A chimney cap mounts over the flue opening and serves multiple purposes. It prevents rain from entering the chimney, keeps animals out, and helps contain embers within the flue.
Chimney caps often include a mesh, acting as a spark arrester while allowing smoke and gases to escape. Installing a cap is a relatively simple and cost-effective way to protect your chimney year-round.
Working Together for Protection
While the crown seals the chimney from above, the cap provides additional protection inside the flue. Together, they work to maintain the chimney’s efficiency and longevity.
Regular inspections can ensure both the chimney crown and cap are in good condition, offering protection against weather and wildlife intrusions, all while supporting efficient chimney function.
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