Instructions repoint the chimney brick mortar.
Repairing cracks in chimney crown mortar.
One major avenue for water to enter your home and cause damage is at the joint.
Clean up the cracked area and.
Apply the mortar to the joint using a pointing trowel if one is available.
Caulking a good alternative to concreting is sealing or caulking up crown cracks.
After a couple of years they crack.
Restore the brick joints to begin restoring the brick mortar joints a process commonly known as tuck pointing first prep the area to ensure good mortar adhesion image 1.
Caulk around the flue and the crown.
Patch cracks in the large crown area.
Concreting cracks if you do not want to make a new crown you could simply fill up the cracks that are visible.