[razzle51]

I hope I can explain this so you all understand . Now we have a bathroom with no window so we have a exhuast fan . We both shower in the am and then turn it off . When the heat of the day hits around 89 -94 around 2 pm you go in the bathroom and there are water droplets and dripping all over the entire ceiling . I dont think the fan has anaything to do with it . and I am not going to leave the fan on all day long . that is just not right . what do you think the problem is . If you have further questions I will try to answer. thanks Roz

 

[VIPlumber]

Roz,

It's an accumulation of moisture that's still in the air and on all the surfaces that you are seeing. If you add a timer to the bath fan to run for an additional hour or two after you turn it on, you'll notice that the moisture problem should disappear.

 

[razzle51]

even if we take showers at 6 am and then the dropplets cover the bathroom ceiling at 2 pm.

 

[VIPlumber]

And you ran the fan the whole time?

 

[razzle51]

we ran the fan whole time taking showers. we should not have to run the fan all day . is that what you mean. I really appreciate your help . something is not right . we had new roof and siding put on pior to this happening so mybe its a insulation problem , there is a atic above the bathroom.

 

[razzle51]

I wont be back online for a while . so I wont get back to you . thanks

 

[VIPlumber]

I meant that if you took a shower at 6am and the drops are there at 2pm, did the fan run the whole time. We run ours for a couple of hours after showering and everything stays nice and dry.

It could be an insulation problem though. When the temp hits the low 90's in the afternoon does the ceiling in the bathroom feel unusually hot?

 

[Thurman]

I had this same problem for some years even with a window in the bath area with I opened each time I showered. I eventually found a timed switch for the exhaust fan and installed this. Now I just switch it to "timed" instead of "OFF" and it runs for the pre-set 15 minutes and turns off automatically. NO more moisture in the bath with or without the window being cracked open.

 

[razzle51]

no the ceiling is not hot . we have a humidifier on the heating unit in the basement , could that have something to do with it . what should it be set on in the summer.

 

[AllanJ]

Do you still get the condensation if you leave the bathroom door and shower curtain open all day?

Is the attic ventilated and the exhaust fan not emptying out up there and not near the soffit vents?

Condensation occurs on a surface cooler than the room air, not on a warmer surface unless the air is unusually humid.

Most of the time you do not need a humidifier during the late spring, summer, and early fall.

 

[razzle51]

showers are usually done by 6 am , door and curtain left open , then as the temps outside start to rise after noon and then around 2 pm , the ceiling in the bathroom covereed with droplets . there is a bedroom on each side of the bathroom and their ceilings are fine. The exhaust fan is routed through the roof .

 

[razzle51]

thanks again I will see what happens this summer