Chimney crown vs. chimney cap: what each one does
Understanding the roles of chimney crowns and caps can help protect your chimney from weather damage and unwanted pests.
What is a Chimney Crown?
The chimney crown is a concrete or masonry slab that sits on top of the chimney. Its main function is to protect the chimney structure from weather elements such as rain, sun, snow, and hail.
A well-constructed crown will prevent water from entering the chimney and causing damage to the masonry. It is sloped to allow water to run off and away from the chimney flue and structure, reducing the risk of deterioration.
What is a Chimney Cap?
A chimney cap is a protective covering fitted to the top of the chimney. It prevents rain, snow, and pests like birds, squirrels, or raccoons from entering the chimney. Chimney caps also help to contain sparks and embers, reducing the risk of roof fires.
They can come fitted with mesh that allows smoke and gases to escape while keeping debris and animals out. Regular inspection of the cap ensures it remains in good condition to perform these functions effectively.
Why Both Are Important
Both crowns and caps are essential for maintaining the health and function of your chimney. While the crown primarily guards against water damage, the cap offers a barrier to moisture, animals, and debris.
Together, they ensure that the fireplace system operates safely and efficiently. Regular inspections can ensure that both components are functional and free of damage, reducing maintenance costs and prolonging chimney life.