It seems that the cement that covers my brick chimney cracked and fell off. It only cracked on one of othe four sides and I am assuming it was due to weather. The cement crack is about 10 inches wide and few feet high. Is the solution simply recementing it? Can someone please guide me through this repair on what to do? Thank you!

 

Chop any loose pieces that are still hanging there with a cement chisel. Mix some mortar and patch it.

 

i would remove all loose cement from chimmey and clean real well and apply a concrete binder paint it on the brick and apply the cement and float it out when it is about set up , you can buy the binder at any lumber yard

 

Sounds like you may have a brick chimney it's been "parged" (covered with a coat of cement or mortar).

Often, this is been done because the brick structure underneath his deteriorated, but the previous owner did not want to pay to have it properly repaired.

If you've lost a large section of parging, it's likely because you have water entry into the structure of the chimney, most typically from the Crown.

What you need to do before repairing the parging is to determine if water's getting into the chimney structure, and if so resolve that problem before repargng.

Also, you need to be aware that there's been substantial water entry into the chimney structure, the masonry behind the parging made deteriorated further, perhaps to the point where the chimney is unstable.

If you have access to an attic underneath the chimney observe its condition just below the roof, if you see a lot of deterioration (for example spalling brick) at the portion of the chimney below the roof that's a definite indication that you had enough water penetration into the chimney that you may have structural problems in the portion above the roof.

 

There is a cap on the chimney so wouldn't that prevent water from entering the chimney?

How much does it cost to install a liner in a chimney?