How To Repair Leaky Roof Flashing
Use a roofing nail to keep the section down and apply some caulking around the edge to seal against water.
How to repair leaky roof flashing. If a leak is difficult to find enlist a helper and go up on the roof with a garden hose. Clean the surface of the roof under the flashing. Start low soaking the area just above where the leak appears in the house. First roughen the area around the hole with a wire brush or sandpaper and then clean it.
For example soak the downhill side of a chimney first then each side then the top on both sides. Isolate areas when you run the hose. Step 3 remove metal roof flashing. Patch the nail or screw holes by slipping a piece of roof flashing underneath the shingle.
Small nail holes left behind from old vents satellite dish brackets or anything previously attached to the roof can allow water to enter and cause damage for years before leaking is noticed.