My house is not extremely moldy or humid, but my wife has developed a
bad mold allergy and we have to get the house less humid before the
weather gets warmer in May. I have talked to several HVAC people
about adding a dehumidifier to the main system. This will be
expensive but I will do it if I have to.
One guy told me that one stand alone unit often does the trick. I
buy one of these at Home Depot for about $160. They are noisy and
have to empty them frequently though and I don't really want one
running in the house. Then he told me something I am questioning,
this is my real question for you. My house has a crawl space, just
about 3 feet high. I put plastic down years ago. This fellow told
I could put a stand alone dehumidifier in the crawl space under the
house and it had a good chance of solving my problems and lowering
humidity in the whole house. Does this make sense?
If you have the crawl space sealed properly then you stop it at the
source and your normal AC unit should do the rest. By sealing it
properly I mean with a heavier plastic then what you probably used and
seal as in to all seams and to the brick work/ cinder blocks. This is
usually done by someone in the business and not a home owner. Other
than that a proper cleaning of your appliances AC and Frig you should
be in good shape.