Deteriorated Mortar Joints

Spalling Bricks on ChimneySpalling Bricks Repair

Deteriorated mortar Joints are entry points for water. Proper mortar joints have no gaps or missing mortar and are struck, or shaped, in a way that directs water out of the joint. A common way to repair mortar deteriorated from exposure to weather is called re-pointing or tuck-pointing. A good tuck-pointing job will give the chimney a longer life span. The first step to a good tuck-pointing job is preparing the joint by grinding or chiseling out old mortar.

Next remove any dust with water or air and tuck point new mortar into the joint. Finally strike the joint for appearance and water resistance.