Patch Leaking Roof Vent

Cut away the old caulk from around the vent pipe.

Patch leaking roof vent.

Make a temporary patch. Replace any missing or rotted siding above the step flashing on dormers. Apply a thick bead of lap seal caulk around the seam. Use a pocketknife to scrape rough edges and sharp points from upper end of plastic vent pipe.

Roof leaks around vent pipes is relatively common a roof that leaks around a vent pipe is a common cause of small water stains on a ceiling or water leaking into a home. It s when the seal around it has been broken. For example soak the downhill side of a chimney first then each side then the top on both sides. If a leak is difficult to find enlist a helper and go up on the roof with a garden hose.

These pipes penetrate the roof. Isolate areas when you run the hose. Across the joists lay a. Possible solutions flexible sealant apply flexible sealant to cracks or holes in the brick mortar or home siding.

Find the water entry point. How to fix a leaking roof vent screen guard shape metal screen wire to form a barrier around the outside of your vent hood to stop hard driving rain flexible roof sealant apply flexible roof sealant black jack roof patch rubberized roof cement from a can or tube to fill holes gaps flashing and loose shingles around roof vent. Quick fix from inside contain dripping water. The immediate thing to do is to contain dripping water from the leak.

Recaulk the corner flashing if any areas have hardened caulk. Use the knife blade to scrape the pipe clean and smooth. Dig out any cracked or dry caulking that isn t properly sealing adjoining surfaces and replace with silicone caulk. The water entry point may not always the same as where the water drips.

In addition to the causes above there is another possible cause for water dripping from roof vent pipes. The leaking may first be seen in the attic but if you don t catch it right away you may see water coming into the house dripping on the floor. In fact it s the most logical cause. Fix a leaky roof vent pipe with a oatey rubber gasket.