Chimney flashing leak
Sooner Exterior Home Services
A ceiling stain around a chimney is almost always flashing rather than masonry. The chimney-to-roof junction is the most common roof leak point on any house.
Step flashing should be woven into each shingle course with counter-flashing cut into the mortar. A continuous strip of caulked metal is the shortcut version and fails within a few years. Flashing is often reused during a reroof because replacing it means cutting masonry – ask whether yours will be.
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Written by Jaylan Jones. Sooner Exterior Home Services earns a referral fee when a call connects to a contractor. See our business-model disclosure.