Chimney crown vs. chimney cap: what each one does

Understanding the Chimney Crown

The chimney crown is a flat or slightly sloped slab that sits on top of the chimney, built from concrete or metal. It seals the top of the chimney, preventing water from entering the masonry structure beneath.

A well-constructed chimney crown prevents water damage, which can lead to costly repairs. It's designed to shed water and protect bricks and mortar from deterioration over time. Regular inspection can help address cracks early, maintaining its effectiveness.

Purpose of the Chimney Cap

A chimney cap is installed above the crown, featuring a cap and a mesh screen that covers the flue opening. It serves multiple functions, including preventing rain, debris, and animals from entering the chimney.

The chimney cap also helps prevent downdrafts and keeps sparks and embers from escaping, reducing the risk of roof fires. Installing a cap improves safety, protects against elements, and can extend the life of your chimney system.

Maintenance and Care

Both the chimney crown and cap require regular maintenance to function effectively. The crown should be inspected for cracks or damage, while the cap may need to be cleaned or replaced if damaged by weather or animals.

Routine inspections by a professional can help identify issues before they lead to significant problems, ensuring both components continue to protect your home from the elements and animals.