leak from turbine ventilator
Bill Athanasopoulos
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
the heat from leaving the attic in the winter, and stop sideways rain from
entering.
--
Zyp
"Bill Athanasopoulos" <bi...@cae.ca> wrote in message
news:cokvt0$gaf$1...@dns3.cae.ca...
Joe Bobst
One of the best arguments of all for using soffit and peak vents. You may want
to investigate that possibility. HTH
Joe
Joseph Meehan
I suggest getting rid of that thing when you can. Until then they make
covers for them or you can try some heavy duty plastic very well secured.
Proper passive venting is a much better solution in almost all
situations.
--
Joseph Meehan
26 + 6 = 1 It's Irish Math
Joseph Meehan
> Some folks wrap a trash bag around the ventilator to do two things.
> Stop the heat from leaving the attic in the winter,
Which in the snow belt, is exactly the wrong thing to do. Yea, I know
they do it, but you really want that area under the roof to be the same
temperature, or close to it, as outside. In areas with no snow or ice
accumulation, then OK as long as there is adequate ventilation without it.
> and stop sideways
> rain from entering.
>
>> I have a turbine type ventilator installed on the roof. It was
>> installed several years ago to improve a humidity problem which has
>> since been resolved.
>>
>> Within the past year we have noticed a slight leak in the kitchen
>> pantry exactly beneath the ventilator. Water is evident only a few
>> time a year and I cannot determine where it is coming from. I
>> inspected the ventilator but did not see any obvious cracks in the
>> base. I applied tar around the base in case there was a crack in
>> the roof near the base, but the problem has not been solved.
>>
>> The problem appears only certain times like after a heavy rainfall
>> or snow, but it is not always consistent.
>> Any ideas?
--
Michael Baugh
over them in the winter. This is to cause water vapor carried with
the heat to condense in the attic, and to encourage ice dams, and
to stop windblown rain from entering, since it would be stopped
by a ridge vent.
Zypher <no-...@yahoo.com> wrote in message
news:a3ord.8748$NU3....@newsread1.news.pas.earthlink.net...
TURTLE
"Zypher" <no-...@yahoo.com> wrote in message
news:a3ord.8748$NU3....@newsread1.news.pas.earthlink.net...
> the heat from leaving the attic in the winter, and stop sideways rain from
> entering.
>
> --
> Zyp
This is Turtle
Zef , we do this in the south with the plastic bag because we don't have snow
and no moisture problem with ice damns or ice on the roof. You can get away with
it in the south but where you have snow and ice weather, you can't do it.
TURTLE
bill a
spin the turbine.
the water can easily splash past the fins, then. I had the same problem
and cured it
by simply attaching a round piece of galv to the top of the bearing frame
(slightly more dia than the turbine).
If you had a tinner make a shallow cone, it could maybe have a presentable
appearance. In my case
the unit isn't visible at all from the ground, so I used a flat piece of
tin. In 5 years since, no leaks.
If you have a tinner involved, another alternative would be to make a cone
shape with a bug screen
and a mounting ring, and replace the turbine altogether, and reuse the 12"
dia base.
hth
bill
"Bill Athanasopoulos" <bi...@cae.ca> wrote in message
news:cokvt0$gaf$1...@dns3.cae.ca...
Zypher
really move that much more from the attic space than say a dormer might?
--
Zyp
"bill a" <custo...@sbcglobalDOTnet.invalid> wrote in message
news:0aHrd.35326$bP2....@newssvr12.news.prodigy.com...
bill a
I think that a similar "stovepipe" type of structure with
a weather cap would do just as well. Some vertical
height would seemingly let it draw like a flue, as
opposed to the low profile static vents they sell at HD.
I haven't seen any recent tech info on this, though.
Bill
"Zypher" <no-...@yahoo.com> wrote in message
news:xtTrd.10924$NU3....@newsread1.news.pas.earthlink.net...
nosp...@vcoms.net
has been 10° above temp on patio. Now garage is 10° LOWER than patio.
Southern Calif coast environment. Been better than 10 years and going
strong when garage gets hot. No maintenance and no squeals.
John Willis
<custo...@sbcglobalDOTnet.invalid> scribbled this interesting note:
>"Zypher" <no-...@yahoo.com> wrote in message
>news:xtTrd.10924$NU3....@newsread1.news.pas.earthlink.net...
>> I've always wondered if those 'turbine ventilators' really work? Do they
>> really move that much more from the attic space than say a dormer might?
>In the past, I've read that they are mostly a gimmick.
>I think that a similar "stovepipe" type of structure with
>a weather cap would do just as well. Some vertical
>height would seemingly let it draw like a flue, as
>opposed to the low profile static vents they sell at HD.
>I haven't seen any recent tech info on this, though.
>Bill
http://www.naturalhandyman.com/iip/infattfan/infattfan3b.shtm
is one place with some information about this. Here is an excerpt from
another site:
http://www.homeimprover.com/articles/0399/ventilation.htm
"Turbine ventilators are wind-driven devices which are designed in
such a manner that wind from any direction causes the upper portion of
the ventilator to rotate. As the turbine rotates, or spins, a reduced
air pressure in the stack draws hot or humid air from the attic
space."
This last piece seems to explain it better than most any other source.
--
John Willis
(Remove the Primes before e-mailing me)
nosp...@vcoms.net
DISTINCT upward movement of air when the hole was cut and wood
removed. Hot air rises by convection and my understanding is THIS is
the driving function behind the rotation of the turbine. Ours rotates
without exterior breeze.
Zypher
would be helpful. Maybe I should try a couple of turbine ventilators and
some ventilation screens to relieve the air.... but then, I've been wanting
to install solar photophelatic cells on the back side......
thanks for the thoughts.
--
Zyp
<nosp...@vcoms.net> wrote in message
news:vhn0r0tr7cu3t38pg...@4ax.com...
MUADIB®
>DISTINCT upward movement of air when the hole was cut and wood
>removed. Hot air rises by convection and my understanding is THIS is
>the driving function behind the rotation of the turbine. Ours rotates
>without exterior breeze.
would that be wind from "any direction"?
convection air will create a breeze, wind will do the same, the
turbine turns, draws/expells air form the attic............I have been
in many attics in my lifetime, ones with some sort of ventilation
other than static have always been cooler...............power vents
seem best, but pull electicity, so are not optimal for energy
conservation in my opinion., but the turbines seem to do a fair job of
cooling an attic, whether it gets rid of all moisture or not,
..........well,...........use you imagination.
Remove "YOURPANTIES" to reply
MUADIB®
http://www.angelfire.com/retro/ssterile/MAIN%20PAGE.html
one small step for man,.....
One giant leap for attorneys.
nosp...@vcoms.net
the direction of the source of the wind wouldn't seem to be relevant
to me.