These areas include roof vents.
Seal leaking roof vent.
Use the knife blade to scrape the pipe clean and smooth.
Bad lead jacks are often source of roof leaks.
And it shrinks and moves and loses that seal that was causing it to be waterproof.
A good lead jack acts as a seal between a plumbing vent and your roof.
Find the water entry point.
Use a pocketknife to scrape rough edges and sharp points from upper end of plastic vent pipe.
Make a temporary patch.
The water entry point may not always the same as where the water drips.
The immediate thing to do is to contain dripping water from the leak.
Maintaining a leak proof roof requires periodic checks to assure sealants such as caulk have not chipped cracked or pulled away from places they seal.
Steps for fixing a leaking rooftop vent pipe.
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A bad lead jack becomes a leaky roof vent because it starts to dry rot in the sun.
Across the joists lay a.
Apply a thick bead of lap seal caulk around the seam.
This old house general contractor tom silva shows how to create a watertight seal around a vent pipe.