Whatever the explanation the joint doesn t meet the plumbing code and was bound to leak.
Repair leak around attic vent.
Recaulk the corner flashing if any areas have hardened caulk.
This determination was confirmed by the water stains that appear on wood directly underneath the vent see pictures.
Attic condensation is due to humid air leaking or vented into the attic.
Quick fix from inside contain dripping water.
Although caulking around the roof vent can fix the problem for a while it s not a permanent solution.
The immediate thing to do is to contain dripping water from the leak.
The roofing specialist team removed and installed a new attic vent using a combination of roof cement and nails.
In addition this joint creates a ledge inside the pipe where water from rainfall can collect.
Repairing a roof leak from the inside is a temporary fix only.
Make a temporary patch.
Caulk has to fill about a 1 4 in.
Moreover this can cause more problems since it may mask the damage that s already been done to your home by the leak.
Make the final repair as soon as weather permits.
Vent humid air from kitchens and bathrooms to the outside instead of the attic to avoid this problem.
Replace any missing or rotted siding above the step flashing on dormers.
Find the water entry point.
In this situation it s best to call in a professional roof repair service to examine the roof to determine the best solution.
Fixing roof leaking around a vent pipe.
It had not been installed properly with roof cement sealant.
Across the joists lay a.
Fix a leaky roof vent pipe with a oatey rubber gasket.
Three inch pipe doesn t fit tightly into 4 in.