Replace the rubber boot if it has split and redo any sealing with more caulk.
Fixing leaky roof vents.
The water entry point may not always the same as where the water drips.
Across the joists lay a.
Apply a thick bead of lap seal caulk around the seam.
Cut away the old caulk from around the vent pipe.
Steps for fixing a leaking rooftop vent pipe.
Quick fix from inside contain dripping water.
Use a pocketknife to scrape rough edges and sharp points from upper end of plastic vent pipe.
Fix a leaky roof vent pipe with a oatey rubber gasket.
Replace these if you re able and add a little pipe sealant to the seams when you screw a new section of pipe into place.
Dig out any cracked or dry caulking that isn t properly sealing adjoining surfaces and replace with silicone caulk.
You may have to remove damaged sections of pipe too.
Recaulk the corner flashing if any areas have hardened caulk.
Find the water entry point.
Make a temporary patch.
Use the knife blade to scrape the pipe clean and smooth.