Francisco De Almeida wrote:
Too much dryness can be a bad thing. It seems that some gaskets in =
difficult-to-reach positions inside the wings can become brittle in =
bone-dry environments. When using an electrical dehumidifier, it may be =
a good idea to set it at least at 50% RH.

Right. This is what I do. It need not run much to keep things
reasonably dry.

A positive side of trailer vents is that whatever the temperature =
fluctuations, it will not become dripping wet inside even if the trailer =
is left unattended for a long time. Vents also help to moderate internal =
temperatures in hot weather.

My trailer has both a solar vent (with adjustable inlets) and a small =
dehumidifier, but if I lived in a very humid climate I would probably =
seal it in the winter and check every week or so.

Yes. Certainly a dehumidifier is not appropriate for all situations.
Use judgement. When the wet weather comes, if you live in an area
where it becomes wet for days and weeks at a time, the dehumidifier has
worked great for me. Even when not so wet one can avoid the daily dew
cycle...

Regards,

-Doug