Crumbling chimney crowns on older buildings
Why it happens here
The freeze-thaw cycle in Braintree cracks crowns that were poured decades ago. Water gets into the cracks, freezes, and expands, breaking the crown apart. On this corridor, the problem is worse because many crowns were never sealed.
Our approach
We remove the old crown entirely, rebuild it with chimney crown mix, and slope it so water sheds away from the flue. We finish with a waterproofing coat that adds years to the crown's life.