Why Chimney Flashing Leaks — and How It Should Be Repaired

Chimneys are one of the most common areas for roof leaks because several different materials and layers have to work together to keep water out. Proper chimney flashing isn't just a piece of metal or a bead of caulk. We use ice and water shield around the chimney, step flashing woven with the shingles, and custom-bent counter flashing that is cut into the masonry to help create a watertight roofing system.

When I inspect a leaking chimney, I first try to determine why it's leaking rather than simply adding more caulk to what is already there. Sometimes an existing flashing system can be repaired. Other times, especially when the flashing was installed incorrectly or has pulled away from the masonry, the right repair is to remove the surrounding shingles and flashing and rebuild the system properly.

If you're searching for a roofing company near me because you have a chimney leak, the important thing is finding someone who will diagnose the source of the problem before recommending a repair. At Nagy Roof and Repair, our goal is to explain what we find, show you the problem whenever possible, and recommend the repair that actually makes sense for your roof.