Leaking chimney flashing on original brick chimneys
Why it happens here
Most Wapello homes were built with brick chimneys and galvanized counter flashing. After 60-plus years, that metal corrodes and the mortar joint it sits in cracks. Water gets behind the flashing and runs down the chimney into the attic.
Our approach
We remove the old flashing, cut a fresh reglet into the mortar, and install new copper or aluminum counter flashing set into the joint. We seal it with high-temp polyurethane and test it with water before we leave.