Apply a thick bead of lap seal caulk around the seam.
How to fix a leak in roof vent.
Use a pocketknife to scrape rough edges and sharp points from upper end of plastic vent pipe.
Replace any missing or rotted siding above the step flashing on dormers.
Steps for fixing a leaking rooftop vent pipe.
Cut away the old caulk from around the vent pipe.
I show how to easily install a perma boot 3.
The water entry point may not always the same as where the water drips.
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.
Recaulk the corner flashing if any areas have hardened caulk.
The immediate thing to do is to contain dripping water from the leak.
Use the knife blade to scrape the pipe clean and smooth.
Make a temporary patch.
Fix a leaky roof vent pipe with a oatey rubber gasket.
Quick fix from inside contain dripping water.
Best way to fix a leaking roof vent pipe this video shows the installation of a perma boot on a residential roof.