How To Repair Roof Leak Vent Flashing

Dig out any cracked or dry caulking that isn t properly sealing adjoining surfaces and replace with silicone caulk.

How to repair roof leak vent flashing. Pull or cut off any nails. If you buy a repair kit you should have access to instructions that you can use when fixing your roof. Fix a leaky roof vent pipe with a oatey rubber gasket. Replace the shingles and cover the nail heads with roofing cement.

Of course you don t want cement oozing all over your roof but you do want to ensure a strong seal. Recaulk the corner flashing if any areas have hardened caulk. There are damages to roof flashing and or boot covers. Apply the vent pipe flashing according to instructions.

As you lift the shingles apply the cement to the back of the shingle about six inches in. To replace flashing around the vent pipe first remove the shingles covering the flange at the back and sides. Once you ve located the leak you can get to work. Apply a thick bead of lap seal caulk around the seam between the vent pipe and old rubber gasket.

Pull the old flashing up over the vent pipe and scrape any old caulk and debris off the roof. Flexible roof sealant apply flexible roof sealant black jack roof patch rubberized roof cement from a can or tube to fill holes gaps flashing and loose shingles around roof vent new vent shingles replace worn out roof vent with a new one and shingle around it to provide a better roof leak repair. Use the knife blade to scrape the pipe clean and smooth. If they re damaged there s a good chance that a leak is already happening.

If you simply purchase the right materials you ll have to look for instructions online. Then run a second bead of caulk just below the first bead. Pry and lift off the flashing. Slide the new flashing over the vent pipe and under the shingles above the pipe.

Slip a flat bar under the edge of the vent flashing and pop the nails up photo 1. When applying the cement you want to apply a very liberal quantity. Position a new vent pipe flashing over the vent push it down into place and nail where shingles will cover it. They play an important role of sealing roof penetrations so water don t penetrate.

Cut away the old caulk from around the vent pipe.