Understanding the Chimney Crown
The chimney crown is a slab that sits on top of your chimney, made of concrete or metal, and it covers the entire top, directing water away from the flue.
A well-constructed crown prevents water from seeping into your chimney and causing damage. It also helps to extend the life of your chimney by protecting the masonry from weather wear.
The Role of a Chimney Cap
Chimney caps are smaller, usually metal, and cover just the opening of the chimney flue. They serve the vital role of keeping out rain, animals, and debris.
Besides preventing moisture and critters from entering, chimney caps also help to keep sparks from escaping, reducing the risk of roof fires.
Choosing Between Crown and Cap
While both structures are important, their roles are complementary. The crown provides broad protection for the chimney structure, while the cap focuses on the flue opening.
It's not a matter of choosing one over the other; both should be in place for complete chimney protection. Regular inspections can ensure that both elements are functioning properly.