On-site concrete: Suitable for large chimneys, made of concrete.
What Is the Importance of Chimney Crown?
Finished product: Ideal for smaller chimneys and concrete chimneys
Floating crown: Built with an overhang about 2 inches above the chimney. This type of crown takes longer to install but usually lasts longer than other crowns.
Some chimney repair companies like Chimney Specialists use impregnate that extends crown life. Some chimney service companies with poor credit use inferior materials to save money, which puts security at an extreme risk. It is highly important to make the right decision about chimney crown repair because it impacts the lifetime of chimneys as well.
This large concrete slab covers the upper opening of the chimney and protects the brick-and-mortar chimney structure from water and moisture in extreme weather conditions. The chimney lining also becomes secure with the crown installation. The crowns are usually made of concrete but can also be made of metal or stone.
A crown should not be confused with a chimney cap, which is made of metal and primarily covers the chimney. So, in short, the last layer of brick at the top of the chimney is the chimney crown. It is usually about 3 to 4 inches thick and faces downwards.
There are several types of crowns.