Replace Roof Vent Pipe Seal

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

Replace roof vent pipe seal.

To replace a damaged roof vent jack on your home. Dry fit it in place and make sure everything lines up and looks good add tip ask question comment download. Cut away the old caulk from around the vent pipe. Use the knife blade to scrape the pipe clean and smooth.

Slide the replacement rubber gasket over the pipe and press it down tight to the flange. Run a bead of. Use your cutters to trim the seal until it fits neatly over the old seal. Use a pocketknife to scrape rough edges and sharp points from upper end of plastic vent pipe.

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. Apply a thick bead of lap seal caulk around the seam between the vent pipe and old rubber gasket. Then run a second bead of caulk just below the first bead.

Works for any size pipe.