Cracked crowns from freeze-thaw cycles
Why it happens here
Georgia winters swing above and below freezing repeatedly. Water sits in hairline crown cracks, freezes, expands and widens them. After a few seasons, the crown is failing and water is getting into the chimney.
Our approach
We rebuild failed crowns with chimney crown mix and apply a flexible waterproof coating. For crowns that are still sound, we seal the cracks and coat the surface to stop water absorption.