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Chimney crown vs. chimney cap: what each one does

Learn the difference between chimney crowns and chimney caps and their roles in protecting your home.

What is a Chimney Crown?

A chimney crown is the topmost part of your chimney, built from cement or concrete. Its primary function is to seal the top of the chimney and prevent water from entering the masonry. It slopes away to direct water away from the flue opening.

A well-maintained chimney crown is crucial for protecting your chimney’s structural integrity. Cracks or damage to the crown can lead to water seeping into the chimney, causing serious problems like brick or mortar deterioration.

Understanding Chimney Caps

A chimney cap is a protective covering that sits on top of the chimney flue. It typically features a mesh that prevents debris, animals, and rain from entering the chimney, while still allowing smoke to escape.

Chimney caps are essential for preventing blockage and animal intrusions, both of which can cause drafts and odors. They also help keep rain out, reducing moisture-related damage and increasing the chimney’s lifespan.

Choosing and Maintaining

Choosing the correct chimney cap for your specific chimney is important for ensuring proper fit and function. Maintenance of both the crown and cap should be part of regular chimney upkeep.

Check both periodically for any signs of wear, damage, or obstruction. Prompt repairs can prevent costly structural damage and help maintain your chimney’s efficiency and safety.

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