I have a turbine type ventilator installed on the roof. It was installed
several years ago to improve a humidity problem which has since been
resolved.

Within the past year we have noticed a slight leak in the kitchen pantry
exactly beneath the ventilator. Water is evident only a few time a year and
I cannot determine where it is coming from. I inspected the ventilator but
did not see any obvious cracks in the base. I applied tar around the base
in case there was a crack in the roof near the base, but the problem has not
been solved.

The problem appears only certain times like after a heavy rainfall or snow,
but it is not always consistent.
Any ideas?

Some folks wrap a trash bag around the ventilator to do two things. Stop
the heat from leaving the attic in the winter, and stop sideways rain from
entering.

--
Zyp
"Bill Athanasopoulos" wrote in message
...
I have a turbine type ventilator installed on the roof. It was installed
several years ago to improve a humidity problem which has since been
resolved.

Within the past year we have noticed a slight leak in the kitchen pantry
exactly beneath the ventilator. Water is evident only a few time a year
and
I cannot determine where it is coming from. I inspected the ventilator
but
did not see any obvious cracks in the base. I applied tar around the base
in case there was a crack in the roof near the base, but the problem has
not
been solved.

The problem appears only certain times like after a heavy rainfall or
snow,
but it is not always consistent.
Any ideas?

Zypher wrote:
Some folks wrap a trash bag around the ventilator to do two things.
Stop the heat from leaving the attic in the winter,

Which in the snow belt, is exactly the wrong thing to do. Yea, I know
they do it, but you really want that area under the roof to be the same
temperature, or close to it, as outside. In areas with no snow or ice
accumulation, then OK as long as there is adequate ventilation without it.

and stop sideways
rain from entering.

I have a turbine type ventilator installed on the roof. It was
installed several years ago to improve a humidity problem which has
since been resolved.

Within the past year we have noticed a slight leak in the kitchen
pantry exactly beneath the ventilator. Water is evident only a few
time a year and I cannot determine where it is coming from. I
inspected the ventilator but did not see any obvious cracks in the
base. I applied tar around the base in case there was a crack in
the roof near the base, but the problem has not been solved.

The problem appears only certain times like after a heavy rainfall
or snow, but it is not always consistent.
Any ideas?

--
Joseph Meehan

26 + 6 = 1 It's Irish Math

Some idiots have turbine type ventilators, and put a garbage bag
over them in the winter. This is to cause water vapor carried with
the heat to condense in the attic, and to encourage ice dams, and
to stop windblown rain from entering, since it would be stopped
by a ridge vent.

Zypher wrote in message
ink.net...
Some folks wrap a trash bag around the ventilator to do two things. Stop
the heat from leaving the attic in the winter, and stop sideways rain from
entering.

--
Zyp
"Bill Athanasopoulos" wrote in message
...
I have a turbine type ventilator installed on the roof. It was
installed
several years ago to improve a humidity problem which has since been
resolved.

Within the past year we have noticed a slight leak in the kitchen pantry
exactly beneath the ventilator. Water is evident only a few time a year
and
I cannot determine where it is coming from. I inspected the ventilator
but
did not see any obvious cracks in the base. I applied tar around the
base
in case there was a crack in the roof near the base, but the problem has
not
been solved.

The problem appears only certain times like after a heavy rainfall or
snow,
but it is not always consistent.
Any ideas?

"Zypher" wrote in message
ink.net...
Some folks wrap a trash bag around the ventilator to do two things. Stop
the heat from leaving the attic in the winter, and stop sideways rain from
entering.

--
Zyp

This is Turtle

Zef , we do this in the south with the plastic bag because we don't have snow
and no moisture problem with ice damns or ice on the roof. You can get away with
it in the south but where you have snow and ice weather, you can't do it.

TURTLE

but the problem has not been solved

One of the best arguments of all for using soffit and peak vents. You may want
to investigate that possibility. HTH

Joe

Bill Athanasopoulos wrote:
I have a turbine type ventilator installed on the roof. It was
installed several years ago to improve a humidity problem which has
since been resolved.

Within the past year we have noticed a slight leak in the kitchen
pantry exactly beneath the ventilator. Water is evident only a few
time a year and I cannot determine where it is coming from. I
inspected the ventilator but did not see any obvious cracks in the
base. I applied tar around the base in case there was a crack in the
roof near the base, but the problem has not been solved.

The problem appears only certain times like after a heavy rainfall or
snow, but it is not always consistent.
Any ideas?


I suggest getting rid of that thing when you can. Until then they make
covers for them or you can try some heavy duty plastic very well secured.

Proper passive venting is a much better solution in almost all
situations.

--
Joseph Meehan

26 + 6 = 1 It's Irish Math

the leakage probably occurs when you have precipitation without any wind to
spin the turbine.
the water can easily splash past the fins, then. I had the same problem
and cured it
by simply attaching a round piece of galv to the top of the bearing frame
(slightly more dia than the turbine).
If you had a tinner make a shallow cone, it could maybe have a presentable
appearance. In my case
the unit isn't visible at all from the ground, so I used a flat piece of
tin. In 5 years since, no leaks.
If you have a tinner involved, another alternative would be to make a cone
shape with a bug screen
and a mounting ring, and replace the turbine altogether, and reuse the 12"
dia base.
hth
bill

"Bill Athanasopoulos" wrote in message
...
I have a turbine type ventilator installed on the roof. It was installed
several years ago to improve a humidity problem which has since been
resolved.

Within the past year we have noticed a slight leak in the kitchen pantry
exactly beneath the ventilator. Water is evident only a few time a year
and
I cannot determine where it is coming from. I inspected the ventilator
but
did not see any obvious cracks in the base. I applied tar around the base
in case there was a crack in the roof near the base, but the problem has
not
been solved.

The problem appears only certain times like after a heavy rainfall or
snow,
but it is not always consistent.
Any ideas?