Leaking chimney flashing on older masonry chimneys
Why it happens here
The masonry on Country Club Park chimneys expands and contracts with temperature changes, which loosens the counter flashing over time. Once it is loose, water runs behind it. Original galvanized flashing on these chimneys is often corroded as well.
Our approach
We remove the old flashing, inspect the masonry for cracks, and install new copper or lead counter flashing with proper overlap. We seal the joint with polyurethane sealant and test with water before we leave.