How To Seal A Roof Vent Pipe

Cut away the old caulk from around the vent pipe.

How to seal a roof vent pipe.

In this video i cover installing a roof boot for a vent pipe in a metal roof. Insert the rubber gasket through the pipe. Enjoy the videos and music you love upload original content and share it all with friends family and the world on youtube. Seal the roofing membrane by applying silicone caulking in the area where the roofing membrane comes in contact with the pipe.

Then run a second bead of caulk just below the first bead. Remove the plastic backing from the roofing membrane and slide it over the vent pipe and down onto the roof. Apply silicone caulking around the area where the vent pipe penetrates the roof. Run a bead of silicone caulk around the vent pipe opening in the roof.

Allow it to completely air dry. The metal i m using is called crinkle black i purchased all my materials at h. 7 place the nozzle of the caulk tube at a point where the vent and roofing. 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. Apply a thick bead of lap seal caulk around the seam between the vent pipe and old rubber gasket. Use a pocketknife to scrape rough edges and sharp points from upper end of plastic vent pipe.