Cracked chimney crown
Why it happens here
The crown is exposed to the elements year-round. In Centennial Mill, freezing temperatures cause water in small cracks to expand, making them worse. Eventually, the crown can crumble, allowing water to enter the chimney.
Our approach
We repair crowns with a flexible, durable sealant that can withstand freeze-thaw cycles. If the damage is extensive, we rebuild the crown with a proper slope to shed water. We also apply waterproofing to the surrounding brick.