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Bathroom fan hondgm@yahoo.com 01-12-2008
---> Re: Bathroom fan hondgm@yahoo.co...01-12-2008
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Posted by hondgm@yahoo.com on January 12, 2008, 1:42 pm
The house I recently bought did not originally have a bathroom fan,
however one of the previous owners added one. They did a half-assed
job like every other project they did to the house. The house is a
standard ranch from the late 70's with a very low slope roof.

First, the fan box is not attached to the ceiling joists. It simply
sits on top of the drywall. However, one edge of the ceiling hole is
right up against a ceiling joist. That's good. Second, it's obvious
the fan is not pulling air like it should. There is a hose attached
to the box, but I'm not sure where it goes. When the fan is run, it
makes a vibrating noise and there is no pull whatsoever on the
bathroom door or any other sign it's actually sucking air. If I take
the fan out and plug it into an outlet, it runs smoothly. I would
like to install a roof vent, and attach the box like it should be.

There is little over 1 foot of space between the ceiling drywall and
the roof, as seen through the ceiling hole. In addition, there is
lots of blown fiberglass insulation in the attic. Needless to say, I
hate thinking about going into this attic. I could easily install the
vent by not going into the attic, but attaching the box is another
story.

My question is: is there a fan box available that can be mounted from
inside the bathroom? I'm thinking of something like the "old work"
electrical boxes. I have thought about simply running screws through
the box into to joist. If I must go into the attic, I can probably do
that provided I wear a respirator and some sort of disposable
coveralls because of the fiberglass.

Thanks for any ideas/insight.


Plumbing 468x60
Posted by RBM on January 12, 2008, 2:01 pm
I'm pretty sure some, or all of the Panasonic fans will go in from beneath,
just be sure the opening isn't to close to any roof rafters, as I believe
these fans are around 10 inches in depth



> The house I recently bought did not originally have a bathroom fan,
> however one of the previous owners added one. They did a half-assed
> job like every other project they did to the house. The house is a
> standard ranch from the late 70's with a very low slope roof.
>
> First, the fan box is not attached to the ceiling joists. It simply
> sits on top of the drywall. However, one edge of the ceiling hole is
> right up against a ceiling joist. That's good. Second, it's obvious
> the fan is not pulling air like it should. There is a hose attached
> to the box, but I'm not sure where it goes. When the fan is run, it
> makes a vibrating noise and there is no pull whatsoever on the
> bathroom door or any other sign it's actually sucking air. If I take
> the fan out and plug it into an outlet, it runs smoothly. I would
> like to install a roof vent, and attach the box like it should be.
>
> There is little over 1 foot of space between the ceiling drywall and
> the roof, as seen through the ceiling hole. In addition, there is
> lots of blown fiberglass insulation in the attic. Needless to say, I
> hate thinking about going into this attic. I could easily install the
> vent by not going into the attic, but attaching the box is another
> story.
>
> My question is: is there a fan box available that can be mounted from
> inside the bathroom? I'm thinking of something like the "old work"
> electrical boxes. I have thought about simply running screws through
> the box into to joist. If I must go into the attic, I can probably do
> that provided I wear a respirator and some sort of disposable
> coveralls because of the fiberglass.
>
> Thanks for any ideas/insight.
>



Posted by Zootal on January 12, 2008, 2:44 pm
Go into the attic. Inspect the attic in general, and inspect the fan
installation. You might find that the fan is OK, but the vent hose is
blocked or collapsed, and simply needs to be re-routed or maybe just moved.

As for vibration, it's possible it just needs to have the enclosure firmly
attached to the ceiling joist. It probably doesn't take much to make it
vibrate if it's just sitting there bouncing around. That may or may not be
easy, depending on the design of the enclosure. You might be able to drill a
hole in it and run a screw through it to the joist.

It's also quite possible that the fan is an inexpensive high speed squirrel
cage fan, which are quite common. Poor quality, mass produced, favored by
contractors that buy in bulk and want to save every penny they can. A little
bit of dust or lint in the blades puts off balance, and it vibrates. I
personally remove them and throw them in the trash everytime I find one, and
put a better quality unit in it's place.


> The house I recently bought did not originally have a bathroom fan,
> however one of the previous owners added one. They did a half-assed
> job like every other project they did to the house. The house is a
> standard ranch from the late 70's with a very low slope roof.
>
> First, the fan box is not attached to the ceiling joists. It simply
> sits on top of the drywall. However, one edge of the ceiling hole is
> right up against a ceiling joist. That's good. Second, it's obvious
> the fan is not pulling air like it should. There is a hose attached
> to the box, but I'm not sure where it goes. When the fan is run, it
> makes a vibrating noise and there is no pull whatsoever on the
> bathroom door or any other sign it's actually sucking air. If I take
> the fan out and plug it into an outlet, it runs smoothly. I would
> like to install a roof vent, and attach the box like it should be.
>
> There is little over 1 foot of space between the ceiling drywall and
> the roof, as seen through the ceiling hole. In addition, there is
> lots of blown fiberglass insulation in the attic. Needless to say, I
> hate thinking about going into this attic. I could easily install the
> vent by not going into the attic, but attaching the box is another
> story.
>
> My question is: is there a fan box available that can be mounted from
> inside the bathroom? I'm thinking of something like the "old work"
> electrical boxes. I have thought about simply running screws through
> the box into to joist. If I must go into the attic, I can probably do
> that provided I wear a respirator and some sort of disposable
> coveralls because of the fiberglass.
>
> Thanks for any ideas/insight.
>



Posted by Mark Witczak on January 12, 2008, 6:28 pm
When you do go into the attic, you may find that end of the vent hose
goes nowhere. Releasing moist air into a cold attic can cause
condensation, mold and (in the worst case) rot. It would be worth
inspecting the rafters if no one has done it in a while.

Mark


Zootal wrote:
> Go into the attic. Inspect the attic in general, and inspect the fan
> installation. You might find that the fan is OK, but the vent hose is
> blocked or collapsed, and simply needs to be re-routed or maybe just moved.
>
> As for vibration, it's possible it just needs to have the enclosure firmly
> attached to the ceiling joist. It probably doesn't take much to make it
> vibrate if it's just sitting there bouncing around. That may or may not be
> easy, depending on the design of the enclosure. You might be able to drill a
> hole in it and run a screw through it to the joist.
>
> It's also quite possible that the fan is an inexpensive high speed squirrel
> cage fan, which are quite common. Poor quality, mass produced, favored by
> contractors that buy in bulk and want to save every penny they can. A little
> bit of dust or lint in the blades puts off balance, and it vibrates. I
> personally remove them and throw them in the trash everytime I find one, and
> put a better quality unit in it's place.
>
>
>> The house I recently bought did not originally have a bathroom fan,
>> however one of the previous owners added one. They did a half-assed
>> job like every other project they did to the house. The house is a
>> standard ranch from the late 70's with a very low slope roof.
>>
>> First, the fan box is not attached to the ceiling joists. It simply
>> sits on top of the drywall. However, one edge of the ceiling hole is
>> right up against a ceiling joist. That's good. Second, it's obvious
>> the fan is not pulling air like it should. There is a hose attached
>> to the box, but I'm not sure where it goes. When the fan is run, it
>> makes a vibrating noise and there is no pull whatsoever on the
>> bathroom door or any other sign it's actually sucking air. If I take
>> the fan out and plug it into an outlet, it runs smoothly. I would
>> like to install a roof vent, and attach the box like it should be.
>>
>> There is little over 1 foot of space between the ceiling drywall and
>> the roof, as seen through the ceiling hole. In addition, there is
>> lots of blown fiberglass insulation in the attic. Needless to say, I
>> hate thinking about going into this attic. I could easily install the
>> vent by not going into the attic, but attaching the box is another
>> story.
>>
>> My question is: is there a fan box available that can be mounted from
>> inside the bathroom? I'm thinking of something like the "old work"
>> electrical boxes. I have thought about simply running screws through
>> the box into to joist. If I must go into the attic, I can probably do
>> that provided I wear a respirator and some sort of disposable
>> coveralls because of the fiberglass.
>>
>> Thanks for any ideas/insight.
>>
>
>

Posted by europeanvic on January 14, 2008, 2:33 pm
> When you do go into the attic, you may find that end of the vent hose
> goes nowhere. Releasing moist air into a cold attic can cause
> condensation, mold and (in the worst case) rot. It would be worth
> inspecting the rafters if no one has done it in a while.
>
> Mark
>
>
>
> Zootal wrote:
> > Go into the attic. Inspect the attic in general, and inspect the fan
> > installation. You might find that the fan is OK, but the vent hose is
> > blocked or collapsed, and simply needs to be re-routed or maybe just mov=
ed.
>
> > As for vibration, it's possible it just needs to have the enclosure firm=
ly
> > attached to the ceiling joist. It probably doesn't take much to make it
> > vibrate if it's just sitting there bouncing around. That may or may not =
be
> > easy, depending on the design of the enclosure. You might be able to dri=
ll a
> > hole in it and run a screw through it to the joist.
>
> > It's also quite possible that the fan is an inexpensive high speed squir=
rel
> > cage fan, which are quite common. Poor quality, mass produced, favored b=
y
> > contractors that buy in bulk and want to save every penny they can. A li=
ttle
> > bit of dust or lint in the blades puts off balance, and it vibrates. I
> > personally remove them and throw them in the trash everytime I find one,=
and
> > put a better quality unit in it's place.
>

> >> The house I recently bought did not originally have a bathroom fan,
> >> however one of the previous owners added one. =A0They did a half-assed
> >> job like every other project they did to the house. =A0The house is a
> >> standard ranch from the late 70's with a very low slope roof.
>
> >> First, the fan box is not attached to the ceiling joists. =A0It simply
> >> sits on top of the drywall. =A0However, one edge of the ceiling hole is=

> >> right up against a ceiling joist. =A0That's good. =A0Second, it's obvio=
us
> >> the fan is not pulling air like it should. =A0There is a hose attached
> >> to the box, but I'm not sure where it goes. =A0When the fan is run, it
> >> makes a vibrating noise and there is no pull whatsoever on the
> >> bathroom door or any other sign it's actually sucking air. =A0If I take=

> >> the fan out and plug it into an outlet, it runs smoothly. =A0I would
> >> like to install a roof vent, and attach the box like it should be.
>
> >> There is little over 1 foot of space between the ceiling drywall and
> >> the roof, as seen through the ceiling hole. =A0In addition, there is
> >> lots of blown fiberglass insulation in the attic. =A0Needless to say, I=

> >> hate thinking about going into this attic. =A0I could easily install th=
e
> >> vent by not going into the attic, but attaching the box is another
> >> story.
>
> >> My question is: is there a fan box available that can be mounted from
> >> inside the bathroom? =A0I'm thinking of something like the "old work"
> >> electrical boxes. =A0I have thought about simply running screws through=

> >> the box into to joist. =A0If I must go into the attic, I can probably d=
o
> >> that provided I wear a respirator and some sort of disposable
> >> coveralls because of the fiberglass.
>
> >> Thanks for any ideas/insight.- Hide quoted text -
>
> - Show quoted text -

Most of the times are exactly like that.

http://www.planorealestateadvisor.com
http://www.planoralty.blogspot.com

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