myredracer wrote:
Just got a hygrometer to mount in our TT. I use a couple of dessicant dryers over the winter and have for the 4 winters we've had this current TT. Over the first winter, most the interior door trims warped liked crazy and had to be replaced under warranty. I thought it was just an anomaly and assumed the dryers were removing enough moisture. We get an awful LOT of rain here for about 6 months, Oct. - April.
The hygrometer is showing an RH of 65% at an outdoor temp. of 45F.
What should the inside RH of a TT, or any RV, ideally be during winter storage to prevent mold or damage to wood? Would getting it lower be beneficial or just forget about it? Not sure if adding any more dessicant dryers would do much and maybe a dehumidifier would be needed?
Kind of depends on if you are planning to heat the trailer during the Oct- April time..
Dehumidifiers tend to freeze up the coils if the air temps go below 65 F. Some but not all dehumidifiers do have a freeze detection which cycles the compressor off when the coils freeze up, but at the expense of lowered capacity when that happens.
Then you have to issue of getting rid of the condensate, if not heated and you have freezing temps you now have to figure out a way to keep the condensate from freezing..
Dehumidifiers also have a bad habit of being insanely expensive $250+ yet have an insanely short life.. I have one in my sticks and bricks basement.. I can count on about 3-4 yrs average life of modern day dehumidifiers.
Were I live, I simply keep a couple of windows slightly cracked open, allows air flow to help keep the build up of moisture inside low when not in use.
