We had an old dome style vent fan in the roof and the motor had been
shot for a couple years. A few weeks ago we finally got around to
replacing the motor and replaced the dome, too (it came with it).
Yesterday evening we had some storms pass thru and when i got home and
checked, the rain gauge said 4-1/4" of rain had falled. The covered
porch was soaked and a neighbor's tree had fallen so I assume the
winds were pretty strong, too.

When I went in the house, directly under the vent fan I found there
was a wet spot in the sheet rock of the ceiling. I didn't have time
to crawl up and look directly but I am assuming that the winds were
blowing the rains as we so happy call it, in to "horizontal rain" when
it's going almost directly sideways at about 40mph. Had this happen a
couple times before and it looks like the wind actually whips the rain
up under the dome of the vent fan and it drips from under the fan down
onto the ceiling of the master bedroom. The attic cooks in the summer
so the fan is a great asset. And we just had the roof completely
redone a few years ago so I doubt there's any issues with that.

Does anyone know of a good way to prevent this from happening? A pan
under the fan? Add some extra material to the edges of the dome?

Thanks!

You should have the same roofing contractor come out and give you advice. A
pan under the vent seems like it could work. If big enough,you might not
need a drain. It just needs to hold the drippings until it gets hot enough
again to evaporate the water. Some salt in the pan will inhibit scum and
mold. A bit of copper containing algicide (also a salt) will also work to
keep it from becoming a source of scum and mosquitoes. It could also be a
failure of the flashing around that vent.




"infiniteMPG" wrote in message
...
We had an old dome style vent fan in the roof and the motor had been
shot for a couple years. A few weeks ago we finally got around to
replacing the motor and replaced the dome, too (it came with it).
Yesterday evening we had some storms pass thru and when i got home and
checked, the rain gauge said 4-1/4" of rain had falled. The covered
porch was soaked and a neighbor's tree had fallen so I assume the
winds were pretty strong, too.

When I went in the house, directly under the vent fan I found there
was a wet spot in the sheet rock of the ceiling. I didn't have time
to crawl up and look directly but I am assuming that the winds were
blowing the rains as we so happy call it, in to "horizontal rain" when
it's going almost directly sideways at about 40mph. Had this happen a
couple times before and it looks like the wind actually whips the rain
up under the dome of the vent fan and it drips from under the fan down
onto the ceiling of the master bedroom. The attic cooks in the summer
so the fan is a great asset. And we just had the roof completely
redone a few years ago so I doubt there's any issues with that.

Does anyone know of a good way to prevent this from happening? A pan
under the fan? Add some extra material to the edges of the dome?

Thanks!

"Pipedown" wrote in
:

You should have the same roofing contractor come out and give you
advice. A pan under the vent seems like it could work. If big
enough,you might not need a drain.

Mudd bucket. Board across the 2x's. Cheap and dirty.

This is assuming it's not a regular thing ever time it rains. Then it
need's some kind of fixin'.


It just needs to hold the
drippings until it gets hot enough again to evaporate the water. Some
salt in the pan will inhibit scum and mold. A bit of copper
containing algicide (also a salt) will also work to keep it from
becoming a source of scum and mosquitoes. It could also be a failure
of the flashing around that vent.




"infiniteMPG" wrote in message
.
..
We had an old dome style vent fan in the roof and the motor had been
shot for a couple years. A few weeks ago we finally got around to
replacing the motor and replaced the dome, too (it came with it).
Yesterday evening we had some storms pass thru and when i got home
and checked, the rain gauge said 4-1/4" of rain had falled. The
covered porch was soaked and a neighbor's tree had fallen so I assume
the winds were pretty strong, too.

When I went in the house, directly under the vent fan I found there
was a wet spot in the sheet rock of the ceiling. I didn't have time
to crawl up and look directly but I am assuming that the winds were
blowing the rains as we so happy call it, in to "horizontal rain"
when it's going almost directly sideways at about 40mph. Had this
happen a couple times before and it looks like the wind actually
whips the rain up under the dome of the vent fan and it drips from
under the fan down onto the ceiling of the master bedroom. The attic
cooks in the summer so the fan is a great asset. And we just had the
roof completely redone a few years ago so I doubt there's any issues
with that.

Does anyone know of a good way to prevent this from happening? A pan
under the fan? Add some extra material to the edges of the dome?

Thanks!

infiniteMPG wrote in news:e8dd31e9-0746-4863-af09-
:

We had an old dome style vent fan in the roof and the motor had been
shot for a couple years. A few weeks ago we finally got around to
replacing the motor and replaced the dome, too (it came with it).
Yesterday evening we had some storms pass thru and when i got home and
checked, the rain gauge said 4-1/4" of rain had falled. The covered
porch was soaked and a neighbor's tree had fallen so I assume the
winds were pretty strong, too.

When I went in the house, directly under the vent fan I found there
was a wet spot in the sheet rock of the ceiling. I didn't have time
to crawl up and look directly but I am assuming that the winds were
blowing the rains as we so happy call it, in to "horizontal rain" when
it's going almost directly sideways at about 40mph. Had this happen a
couple times before and it looks like the wind actually whips the rain
up under the dome of the vent fan and it drips from under the fan down
onto the ceiling of the master bedroom. The attic cooks in the summer
so the fan is a great asset. And we just had the roof completely
redone a few years ago so I doubt there's any issues with that.

Does anyone know of a good way to prevent this from happening? A pan
under the fan? Add some extra material to the edges of the dome?

Thanks!

4"+ at one shot. That's a lot of frikkin' rain! Even with torrential
downpours and gusty winds 4" is unusual (to me anyway).

It didn't happen with the old hood I take it. Does the new hood differ
much from the old one?

replacing the motor and replaced the dome,

Isn't that called replacing the whole thing. Why would you say replaced
the motor and replaced the dome? What I'm getting at is is there some
part of the story missing here?

4"+ at one shot. That's a lot of frikkin' rain! Even with torrential downpours and gusty winds 4" is unusual (to me anyway).

We've had 21" of rain over 2-1/2 days before. When tropical front
move thru west central Florida we get dumped on... literally.

It didn't happen with the old hood I take it. Does the new hood differ much from the old one?

Actually it did happen a couple times with the old hood and they're
both the same (just different colors).

Isn't that called replacing the whole thing. Why would you say replaced the motor and replaced the dome? What I'm getting at is is there some part of the story missing here?-

The metal duct work is mounted and tarred to the roof, set in the
shingled and all. I left the existing duct work there, replaced the
motor, the motor mount and the dome. The duct work from the earlier
fan remained so even though it's confusing I didn't replace the whole
thing, just the guts and the cover. The new and old one mounted the
same so it all matched up.

Was looking for something to mount under it in case this happens again
and think I found the solution. I found a pan they sell in Lowe's for
under hot water heaters. Pretty big aluminum pan with a hole and
fitting for a drain hose if needed. Can wire this under the vent fan
opening with heavy bailing wire and hook a hose ot tube to it if I get
worried about more rain then it can hold. The whole thing cost about
$8. I'll see how it goes.

infiniteMPG wrote:

We had an old dome style vent fan in the roof and the motor had been
shot for a couple years. A few weeks ago we finally got around to
replacing the motor and replaced the dome, too (it came with it).
Yesterday evening we had some storms pass thru and when i got home and
checked, the rain gauge said 4-1/4" of rain had falled. The covered
porch was soaked and a neighbor's tree had fallen so I assume the
winds were pretty strong, too.

When I went in the house, directly under the vent fan I found there
was a wet spot in the sheet rock of the ceiling. I didn't have time
to crawl up and look directly but I am assuming that the winds were
blowing the rains as we so happy call it, in to "horizontal rain" when
it's going almost directly sideways at about 40mph. Had this happen a
couple times before and it looks like the wind actually whips the rain
up under the dome of the vent fan and it drips from under the fan down
onto the ceiling of the master bedroom. The attic cooks in the summer
so the fan is a great asset. And we just had the roof completely
redone a few years ago so I doubt there's any issues with that.

Does anyone know of a good way to prevent this from happening? A pan
under the fan? Add some extra material to the edges of the dome?

Thanks!


Do you have soffit vents? If not, and they can be added, there might
be more updraft to keep
air moving out at the top and not allowing the rain in. The sun was
shining here when you guys
got hit; I remember the weather report that day sounded crazy.

Do *you have soffit vents? *If not, and they can be added, there might be more updraft to keep air moving out at the top and not allowing the rain in. *

Yeah, all the way around the roof. I think when this happens it cools
down so the vent fan isn't running so the only air movement is updraft
from the heat. No heat, no updraft. And I have been out in these,
it's the times when you hold the umbrella beside you and not above you
to stay a little dry.

The sun was shining here when you guys got hit; I remember the weather report that day sounded crazy.

Where you located? Heck, the sun can be shining here WHILE we're
getting hit! hehehehe I'm just trying to get things set before the
tropical storms come rolling in. That's when we get bucketloads.