Leaks around clay tile roofs and chimney flashing are often caused by the natural shifting of tiles, improper installation, or deterioration of flashing materials. Clay tiles are heavy and can move or crack due to temperature changes, ground settling, or impact, creating gaps where water can enter. The flashing, typically made from metal like aluminum or copper, forms a crucial waterproof seal between the chimney and the roof. Over time, flashing can corrode, warp, or detach from the chimney or roof deck, allowing water to seep inside. Diagnosing these issues involves checking for cracked, displaced, or missing tiles, and inspecting the flashing for signs of rust, gaps, or loose nails. From safely standing on a ladder, homeowners can carefully look around the chimney’s base for visible flashing damage or water stains on the underside of tiles, but avoid walking on tiles, as they can break easily.
If you suspect a leak but aren’t sure, it’s wise to call a professional roofer experienced with clay tile roofs and flashing work. A roofer can test for hidden leaks and suggest repairs or replacement of damaged tiles and flashing sections. When consulting a contractor, ask if they use code-compliant flashing methods, such as step flashing or counter flashing, and what kind of warranty they provide for their work. Also inquire how they ensure compatibility between new flashing materials and existing clay tiles, as mismatched metals can accelerate corrosion. Addressing these issues promptly helps protect your home’s structure and maintain the longevity of your beautiful clay tile roof.