Drip during heavy rain shower

[Ddagsyn]

hi
I have a two storey house in houston texas. This friday we got about 3 inches of rain at around noon. I was in my master on the second floor for the good part of the rain.
When i went to my first floor family room I noticed water on my couch. I looked up to see a water stain from my vent. I quickly opened the vent to find it was completely dry and concluded that water was just using the opening to drip down. Now the rain although not heavy was steady by the drip had stop.
I went up to the second storey and noticed no leaks in the ceiling just above. I also went thru the attic with a flood light and although the space is tight could not find any water marks by the drain vents etc.
So i am lost as to how water was dripping thru the first floor with no evidence of it on the second.
Now to the left of the family room is the guest bathroom which has it's drain vent and plumbing pretty far from the drip. I cannot imagine any plumbing in the area of the drip. The guest bathroom does have an exhaust which is about 3 feet from the drip spot.
All the drain vents on the roof were re sealed after hurriance ike. And i should mention that during hurriance ike we did have a drip spot about a foot to the left of the new one.

So my quesiton is where do i look and what do you think is going on. The drip spot is about 9 feet from the shingled house side. Where could this drip be coming from. It also rained all day today pretty heavy and the drip is gone.

If it was the plumbing or the drain it would be consistent but it isn't.
Please advice and thanks for reading.

 

[Redwood]

Leaks can often track along a floor hidden, usually following a 2X4 at the base of a wall.

I have seen a shower valve leak show up 8 feet away from the actual leak location...

Good luck in your quest to find the source.

 

[Sponsor]

 

[Msgale]

if it only leaks when raining, you need roofing help, not plumbing help, and you are on the wrong forum.

roof leaks can be extremely tricky to track down bcs. the water will drip a long distance, maybe on a rafter or other wood, before it's visible.
go back to the attic w bright light, in the rain, and look everywhere.

 

[Ddagsyn]

Yeah, I suspect it is in the roof as well. The flashing for the drain spouts were checked after the hurriance last year and resealed. I am suspecting that it came from one of the air circulation vents.
thanks

 

[Thatguy]

I guess you could use a level on the joists to find from which end the water is flowing, but you may be looking for very small angles.

 

[SewerRatz]

They sell moisture detectors that you can use to help pinpoint the leak. They are a bit expansive but worth it for jobs like this one.

 

[Ddagsyn]

I found the source. It turns out to be the drain spout flashing. There are a few very small holes that would allow rain water to come in. I confirmed this by touching the insulation which was slightly damp.
My handyman is going to come over to seal it.

Thanks all

 

[SewerRatz]

I found the source. It turns out to be the drain spout flashing. There are a few very small holes that would allow rain water to come in. I confirmed this by touching the insulation which was slightly damp.
My handyman is going to come over to seal it.

Thanks all

Good find. Glad you able to track it down in a timely manor.

 

[Ddagsyn]

K, I know this is not the right forum but am going to ask if anyone can give me a contact to an honest handyman or company to reseal and repair my roof flashing. This is becoming an emergency. I am in Houston TX close to Spring Cypress/Tomball
Thanks