How To Seal Leaky Roof Vent

When the roof vent is leaking the actual cause must be identified first.

How to seal leaky roof vent.

Install a code lead jack in its place. Fix a leaky roof vent pipe with a oatey rubber gasket. Use the knife blade to scrape the pipe clean and smooth. Given the most common causes is cracked or damaged rubber boot the most ideal solution is to remove it and replaced it with a new one.

Steps for fixing a leaking rooftop vent pipe. For this it is better to hire a professional roofer to handle the work. And it shrinks and moves and loses that seal that was causing it to be waterproof. A bad lead jack becomes a leaky roof vent because it starts to dry rot in the sun.

A code lead jack is going to be much better because it has a much larger base to it which sits flat on the roof. Start by removing the old lead jack and removing shingles around it. Place the nozzle of the caulk tube at a point where the vent and roofing material meet. This old house general contractor tom silva shows how to create a watertight seal around a vent pipe.

Cut away the old caulk from around the vent pipe. Squeeze the trigger of the gun while simultaneously pulling it slowly along the seam and pushing down firmly. Use a pocketknife to scrape rough edges and sharp points from upper end of plastic vent pipe.