Replace Roof Vent Pipe Seal

Then run a second bead of caulk just below the first bead.

Replace roof vent pipe seal.

Dry fit it in place and make sure everything lines up and looks good add tip ask question comment download. Run a bead of silicone caulk around the vent pipe opening in the roof. Use the knife blade to scrape the pipe clean and smooth. Cut away the old caulk from around the vent pipe.

Steps to replacing a roof vent jack. Use your cutters to trim the seal until it fits neatly over the old seal. Squirrels can damage the jacks by chewing on the soft lead covering to sharpen their teeth. Video turorial on how to change out a plumbing vent boot.

Slide the replacement rubber gasket over the pipe and press it down tight to the flange. Works for any size pipe. Remove the plastic backing from the roofing membrane and slide it over the vent pipe and down onto the roof. Apply a thick bead of lap seal caulk around the seam between the vent pipe and old rubber gasket.

Roof jacks fit over plumbing vent pipes that protrude through the roof to keep them from leaking.