Need to consider encapsulation. Just putting a dehumidifier down there will do no good, especially if your air HVAC air handler is also located in the crawlspace. It will just run all the time and not be able keep the relative humidity to an acceptable level. Take a hygrometer and test your RH level in the crawlspace. 60 or below is ideal.

Last edited by demop_native; 08/09/26 02:34 PM.