EXT wrote:
Had a similar problem a few years ago. I was having water drip into my
finished basement through an access door in the ceiling. We matched the
dripping to times of rain and had eliminated all plumbing leaks, as a
bathroom was very near the access door.


similar problem here. the rubber vent pipe gasket where it goes thru
the roof and roof flange cracked and when it rained water followed the
vent pipe thru the wall to the crawl space flooding an area of the crawl
and insulation.