Cracked crowns leaking water into the flue
Why it happens here
Wemrock's freeze-thaw cycles crack the crown within a few winters, especially on wind-exposed roofs. Once the crown cracks, water runs straight down the flue and into the ceiling. It is the single most common leak source we find here.
Our approach
We chip out the failed crown, rebuild the overhang with fresh crown mix, and seal it with ChimneySaver water repellent. We hose-test before leaving so you know it is fixed, not just patched.