When this happens the water can seep into the house along the pipe.
Attic vent pipe leak.
These collars consist of a metal base generally made out of aluminum and a rubber boot integrated into the top of the collar.
The immediate thing to do is to contain dripping water from the leak.
Make a temporary patch.
Attic condensation is due to humid air leaking or vented into the attic.
Rusty and cracked collars around the vent pipe can allow rainwater to pool and eventually drip into.
Quick fix from inside contain dripping water.
If the rubber boot is cracked rotted away or torn.
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.
But make a big oval hole going down.
The water entry point may not always the same as where the water drips.
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.
Here are four common problems that can cause water to leak around vent pipes.
Do not cut any supporting beams or rafters.
Areas where leaks have.
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.