Bathroom Humidity - Solutions Needed

[Anonymous]

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:Are your kids actually running the fan? Is the fan properly vented? We haad this issue and discovered that it was vented into the attic, not outside. Had it installed properly and then wired to the light switch so noboy could forget to turn it on. Solved the problem.

Same.

OP here - yes the fan is always on. Always. The window stays open until the evening - 12 months out of the year. The temps here range from 50* at night to 80* during the day. The fan butts up against and exterior wall, I put my hand under the output vent outside while the fan was running and air was coming out. The attic is not involved here.

We're going to put in a portable fan today to see if it helps.

Get a 20" box fan from Amazon and put it in the window, blowing out.

The window is not large enough, but more than anything the window is inside the shower so that's a big no-go. We put an oscillating fan in there this morning, let's see how it goes!

I think you're significantly underestimating how much air you need to move.

[Anonymous]

So, I haven't read all of the responses but your fan is undersized. If your bathroom is 125-150 by 8, you need at least 150 CFM fan. Go measure your bathroom preciously and calculate what size fan is needed. A lot of online calculators available.

[Anonymous]

Something about this story doesn't make sense. You keep your fan on 24/7 literally??

[Anonymous]

Anonymous wrote:Something about this story doesn't make sense. You keep your fan on 24/7 literally??

OP here. What is it about my "story" that doesn't make sense?
1) It's not a "story". This is an actual, real issue we have going on that we're trying to solve.
2) Yes we have the exhaust fan running 24/7. Why is this hard to believe?

[Anonymous]

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:Are your kids actually running the fan? Is the fan properly vented? We haad this issue and discovered that it was vented into the attic, not outside. Had it installed properly and then wired to the light switch so noboy could forget to turn it on. Solved the problem.

Same.

OP here - yes the fan is always on. Always. The window stays open until the evening - 12 months out of the year. The temps here range from 50* at night to 80* during the day. The fan butts up against and exterior wall, I put my hand under the output vent outside while the fan was running and air was coming out. The attic is not involved here.

We're going to put in a portable fan today to see if it helps.

Get a 20" box fan from Amazon and put it in the window, blowing out.

The window is not large enough, but more than anything the window is inside the shower so that's a big no-go. We put an oscillating fan in there this morning, let's see how it goes!

I think you're significantly underestimating how much air you need to move.

I'm not significantly underestimating anything. I know we have an issue. I know there's a ton of moisture in the air that is not able to move and clear out. We tried the oscillating fan yesterday which we were pretty sure would not help but we wanted to at least try it. It did nothing, of course. Our current exhaust is rated at 110CFM, as one of the other PP's stated we need a more robust one. So going to look for that now as our next step.

[Anonymous]

Anonymous wrote:Yeah, this isn't going to get fixed until you run an HVAC vent through there. You need more ventilation with cooler air, which holds less moisture than warmer air.

yup. I know this is expensive but this is the only fix that I see actually working.

Your contractor screwed you, unfortunately! You do NOT want to risk mold in your house (its dangerous, can cause health problems, is very expensive to remove. need there!) so fixing moisture problems, to me, is a "need" not a "want" in regards to your home. Moisture will inevitably lead to mold. Good luck!

[Anonymous]

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:Are your kids actually running the fan? Is the fan properly vented? We haad this issue and discovered that it was vented into the attic, not outside. Had it installed properly and then wired to the light switch so noboy could forget to turn it on. Solved the problem.

Same.

OP here - yes the fan is always on. Always. The window stays open until the evening - 12 months out of the year. The temps here range from 50* at night to 80* during the day. The fan butts up against and exterior wall, I put my hand under the output vent outside while the fan was running and air was coming out. The attic is not involved here.

We're going to put in a portable fan today to see if it helps.

Get a 20" box fan from Amazon and put it in the window, blowing out.

The window is not large enough, but more than anything the window is inside the shower so that's a big no-go. We put an oscillating fan in there this morning, let's see how it goes!

I think you're significantly underestimating how much air you need to move.

I'm not significantly underestimating anything. I know we have an issue. I know there's a ton of moisture in the air that is not able to move and clear out. We tried the oscillating fan yesterday which we were pretty sure would not help but we wanted to at least try it. It did nothing, of course. Our current exhaust is rated at 110CFM, as one of the other PP's stated we need a more robust one. So going to look for that now as our next step.

dp - what's up with your attitude? people are trying to help. be grateful. geesh

[Anonymous]

Anonymous wrote:

Anonymous wrote:Yeah, this isn't going to get fixed until you run an HVAC vent through there. You need more ventilation with cooler air, which holds less moisture than warmer air.

yup. I know this is expensive but this is the only fix that I see actually working.

Your contractor screwed you, unfortunately! You do NOT want to risk mold in your house (its dangerous, can cause health problems, is very expensive to remove. need there!) so fixing moisture problems, to me, is a "need" not a "want" in regards to your home. Moisture will inevitably lead to mold. Good luck!

Yes our contractor screwed up, and screwed us. There's a lot of drama surrounding the entire remodel with this issue just being yet another one. We certainly don't want a mold issue so we're determined to fix it.

[Anonymous]

Anonymous wrote:

Anonymous wrote:Something about this story doesn't make sense. You keep your fan on 24/7 literally??

OP here. What is it about my "story" that doesn't make sense?
1) It's not a "story". This is an actual, real issue we have going on that we're trying to solve.
2) Yes we have the exhaust fan running 24/7. Why is this hard to believe?

Because you would have burned the motor by now.

[Anonymous]

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:Something about this story doesn't make sense. You keep your fan on 24/7 literally??

OP here. What is it about my "story" that doesn't make sense?
1) It's not a "story". This is an actual, real issue we have going on that we're trying to solve.
2) Yes we have the exhaust fan running 24/7. Why is this hard to believe?

Because you would have burned the motor by now.

So far so good, it's running without any issues outside of it not being an adequate size.

[Anonymous]

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:Something about this story doesn't make sense. You keep your fan on 24/7 literally??

OP here. What is it about my "story" that doesn't make sense?
1) It's not a "story". This is an actual, real issue we have going on that we're trying to solve.
2) Yes we have the exhaust fan running 24/7. Why is this hard to believe?

Because you would have burned the motor by now.

So far so good, it's running without any issues outside of it not being an adequate size.

don't burn your house down

[Anonymous]

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:Are your kids actually running the fan? Is the fan properly vented? We haad this issue and discovered that it was vented into the attic, not outside. Had it installed properly and then wired to the light switch so noboy could forget to turn it on. Solved the problem.

Same.

OP here - yes the fan is always on. Always. The window stays open until the evening - 12 months out of the year. The temps here range from 50* at night to 80* during the day. The fan butts up against and exterior wall, I put my hand under the output vent outside while the fan was running and air was coming out. The attic is not involved here.

We're going to put in a portable fan today to see if it helps.

Get a 20" box fan from Amazon and put it in the window, blowing out.

The window is not large enough, but more than anything the window is inside the shower so that's a big no-go. We put an oscillating fan in there this morning, let's see how it goes!

I think you're significantly underestimating how much air you need to move.

I'm not significantly underestimating anything. I know we have an issue. I know there's a ton of moisture in the air that is not able to move and clear out. We tried the oscillating fan yesterday which we were pretty sure would not help but we wanted to at least try it. It did nothing, of course. Our current exhaust is rated at 110CFM, as one of the other PP's stated we need a more robust one. So going to look for that now as our next step.

110 CFM is a decent size. It's much more likely that it's improperly installed and not producing anywhere near that. It's a place where contractors take shortcuts all the time. The ducting is large and sometimes hard to route through the wall, and it's hidden once the wall is finished. So they kink it or crush it to make it fit, or they just leave it unattached in the wall.

[Anonymous]

Anonymous wrote:

Anonymous wrote:Yeah, this isn't going to get fixed until you run an HVAC vent through there. You need more ventilation with cooler air, which holds less moisture than warmer air.

yup. I know this is expensive but this is the only fix that I see actually working.

Your contractor screwed you, unfortunately! You do NOT want to risk mold in your house (its dangerous, can cause health problems, is very expensive to remove. need there!) so fixing moisture problems, to me, is a "need" not a "want" in regards to your home. Moisture will inevitably lead to mold. Good luck!

There's really no material difference between having air delivered by a HVAC vent vs having it exhausted by a vent fan and makeup air coming from the rest of the house. It's really the quantity of air that's the issue.

[Anonymous]

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:Yeah, this isn't going to get fixed until you run an HVAC vent through there. You need more ventilation with cooler air, which holds less moisture than warmer air.

yup. I know this is expensive but this is the only fix that I see actually working.

Your contractor screwed you, unfortunately! You do NOT want to risk mold in your house (its dangerous, can cause health problems, is very expensive to remove. need there!) so fixing moisture problems, to me, is a "need" not a "want" in regards to your home. Moisture will inevitably lead to mold. Good luck!

Yes our contractor screwed up, and screwed us. There's a lot of drama surrounding the entire remodel with this issue just being yet another one. We certainly don't want a mold issue so we're determined to fix it.

When we moved into our house there was no HVAC vent in one of the bathrooms. It turns out the HVAC guy had installed it but the drywall guys had covered it up. It was literally a 20 minute fix. Something to check.

[Anonymous]

Where does the replacement air come from?