Bathroom exhaust fan leaking/snow under roof vent
Last night before we left to go out, my wife calls me to the bedroom and says there is water dripping from the bathroom exhaust fan. Not a good thing to hear of course. So I go to take the bathroom grill and a whole bunch of water comes from the grill. Basically its been acting like a cup and obviously filled over and started to drip.
Also, we have had a major cold snap and tons of blowing snow the last 2 weeks, and yesterday (the day it started dripping) it has warmed up to plus temps (about plus 1-3 degrees)
My first thought was condensation inside the pipe that was frozen because its been so cold, and then melting because its warmer now. But I also have the insulated flexible piping.
I was completely surprised at the drip, because every fall and spring I go on my roof and into my attic check the vents, shingles, etc, etc for any problems that could cause leaks, etc, etc.
So this morning I went up to look and the outside of the insulated piping was damp, and obviously followed along the pipe into the fan. I checked the insulation in the are and it didn't seem to be wet or damp. So it wasn't a roof leak.
Then I checked the piping into the roof vent, and it seems to be just stuck in there, not really mounted.
The way the winds been blowing lately, is it possible snow could of been blown up into the roof vent, and then when it warmed up just followed along the flexible pipe.
Also, we have blown in insulation, not bats.
Question 1: If thats the case, is there a proper way to mount the black insulation into the roof vent besides just stuffing it into there. Should a small metal pipe be into the roof and then the insulation pipe put over that.
Question 2: I also found some snow under neath one of the regular roof vents (the square kind, not the wind turbine ones) Is this normal? I realize snow and rain aren't supposed to be in your attic, but any roof venting must allow a little moisture (due to wind direction, etc) in because its an opening to the outside.
Question 3: How is the vapor barrier suppsoed to be against the bathroom fan. Because I had to check the insulation and the exhaust connections, I noticed the vapour barrier is just sitting against the fan box, not sealed or anything. Is it supposed to be sealed against the fan box. Right now I can basically just move the vapour barrier and look right into my bathroom.
This is only one one side of the house it seems (the north side of the roof that takes the brunt of the wind) The other side where we have another bathroom exhaust is completely dry, etc.
The house is about 9 years old. I will be going to Home Depot to ask some questions. We have been in the house for just over 2 years now, and this is the first winter this has ever happened. All the insulation is all fluffy and the spots I could check there is no moisture against the vapour barrier or drywall damage.