What did I get myself into?? Poorly installed flashing on stone chimney leaked for decades, we bought house 6 yrs ago. Just removed many layers of damp and poorly overlapped flashing/tar/glue/shingles. Boards
Shasta Vent "Ventilated Roof Flashing" for Shasta Vent 8" (10" O.D.) Chimney Systems (for Flat Roofs) - Amazon.com