Instructions repoint the chimney brick mortar.
Repairing cracks in chimney crown mortar.
Patch cracks in the large crown area.
Caulking a good alternative to concreting is sealing or caulking up crown cracks.
One major avenue for water to enter your home and cause damage is at the joint.
New mortar is smooth and solid but as the seasons go.
Clean up the cracked area and.
Caulk around the flue and the crown.
Concreting cracks if you do not want to make a new crown you could simply fill up the cracks that are visible.
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.