Vent humid air from kitchens and bathrooms to the outside instead of the attic to avoid this problem.
Attic vent pipe leak.
Quick fix from inside contain dripping water.
Attic condensation is due to humid air leaking or vented into the attic.
Here are four common problems that can cause water to leak around vent pipes.
Rusty and cracked collars around the vent pipe can allow rainwater to pool and eventually drip into.
Make a temporary patch.
The immediate thing to do is to contain dripping water from the leak.
Remove debris make sure your roof valleys are clear of debris re shingle valleys valleys may need to be reshingled with new ice and water shield put in place.
Across the joists lay a.
If the rubber boot is cracked rotted away or torn.
Do not cut any supporting beams or rafters.
Typically vent pipe leaks occur at the collar surrounding the base of the vent pipe where it breaks through the surface of the roofing material.
Areas where leaks have.
Find the water entry point.
Then you can easily cut the pipe lower in the old area and join it up with the new vent pipe.
Then cut the pvc lower down and properly connect it to the vent so no pressure is on any joints and is sloping downward.
But make a big oval hole going down.