How To Fix Roof Flashing Leak

Plug pinholes with roofing cement and patch holes up to about 3 4 inch in diameter with a patch from the same material as the flashing.

How to fix roof flashing leak.

First roughen the area around the hole with a wire brush or sandpaper and then clean it. Isolate areas when you run the hose. Use a chisel to remove any hardened roofing cement. Start low soaking the area just above where the leak appears in the house.

First snip the new flashing with your shearers then bend it to a 90 degree angle. Pry up the edges of the flashing with a small prybar carefully so you do not damage the shingles or underlying sheathing. Remove the roofing nails with the prybar as the flashing is being removed. Vent flashing is damage near or on the vents of your roof.

Clean any leaves or other debris out of the gap between the flashing and chimney. Small holes or corroded spots in flashing can be easily repaired. Adhere it using your flashing cement. If you see damage to joints previously sealed.

Step 3 remove metal roof flashing. Replace any missing or rotted siding above the step flashing on dormers. Liberally apply a coat of primer to the damaged area as well as the surrounding material. Have your helper stay inside the house waiting for the drip to appear.

For example soak the downhill side of a chimney first then each side then the top on both sides. Allow the primer to dry if instructed to do so by the packaging. For metal roof flashing that is corroded and needs to be replaced you will need to remove it from the shingles. To repair leaks caused by metal flashing around chimneys and dormers simply reseal joints using a caulk gun filled with roofing cement.

Cut the self adhesive patching material to the desired. Clean the area around the damage to remove any debris. Recaulk the corner flashing if any areas have hardened caulk. Dig out any cracked or dry caulking that isn t properly sealing adjoining surfaces and replace with silicone caulk.

Apply a generous amount of roofing cement behind the flashing.