How to Find the Source of a Stubborn Roof Leak
https://roofwiseliving.novacrestiq.com/posts/how-to-find-the-source-of-a-stubborn-roof-leak
I had a leak that drove me crazy for months, appearing only after heavy rain. The trick was to start in the attic on a dry day, looking for dark stains or trails on the rafters, and then follow them up toward the roof deck. I used a garden hose to isolate sections, spraying one area at a time while my husband watched from below. It turned out to be a small gap in the flashing around the chimney. Mark the spot with chalk, then patch it—just don't forget to check the surrounding shingles for crac…