Is this normal

[Russellvh]

2022 F.R. Wildcat 5th wheel. Obvious newbies.

Pulled into south Louisiana yesterday afternoon. Park has a lot of trees. When parked we leave the bathroom vent open, not sure why we just do, and keep bathroom door closed. When we woke up this morning there was condensation all over the bathroom ceiling and some on the hall just outside the bathroom.

This can’t be good.

[Semperfi24]

I would guess that its normal. The moisture in the air was able to come down into your RV through the open vent. With the bathroom door closed, the humidity was concentrated in the bathroom. I assume you were running the A/C, which cooled all of the surfaces, and the humidity became condensation. Like a cold drink, and the outside of the can, or glass gets wet.

[Oaklevel]

With high humidity and leaving the vent open, yes I would not at all be surprised.

[Guitar G]

We saw this video from Tod at NRVTA recently about controlling humidity in an RV. One of the tips was to leave your windows closed when there is high humidity outside. Leaving the bathroom door open rather than closed would probably be good, too, since the bathroom is a high-humidity area. Here's the link to that video.

https://www.youtube.com/watch?v=irjJc4fbhDE

[tyler811]

I agree, if the fan was off or even on (being a cheap 50 cent vent fan). Louisiana is known for its crawdads and humidity.

For piece of mind, leave the vent closed to see if it happens again.

[jd4010]

We leave our bathroom vent open a lot (no fan running unless we are showering) and at night especially, the ceiling gets wet as the A/C is running thru vents in the ceiling and the condensation forms accordingly.

I don't worry much about it....just wipe it off and carry on. Not worried about moisture in the "attic" as there are attic vents.

[jeff64]

Close your vents, run ac, get a good dehumidifier and a couple fans to circulate the air

[chriscowles]

Originally Posted by Russellvh

2022 F.R. Wildcat 5th wheel. Obvious newbies.



Pulled into south Louisiana yesterday afternoon. Park has a lot of trees. When parked we leave the bathroom vent open, not sure why we just do, and keep bathroom door closed. When we woke up this morning there was condensation all over the bathroom ceiling and some on the hall just outside the bathroom.



This can’t be good.

We leave our bathroom vent open most of the time, with the MaxxAir can on the lowest speed and three for closed. In extreme heat (like maybe Louisiana?) the AC wouldn't be able to keep up, but it keeps the air circulating and would prevent the condensation you described, because there would be positive pressure blowing out at all time.