I'm trying to keep the relative humidity (RH) in my basement shop below the level of causing rust and mold/mildew. I've heard I want to keep it at 50% or lower at 70 degrees to accomplish this.
My question is: I keep the basement unheated at around 46-50 degrees when I'm not working in it. I understand as the temperature goes down the RH rises. So what should my RH goal be at 50 degrees?
My dehumidifier is running so much trying to keep RH at 50% at 50 degrres that it is freezing up even though it is a low temp model supposedly good down to 43 degrees. Is it broken or just overloaded running constantly to try and reduce RH to an unrealisticly low level?? Would RH at 65% at 50 degrees still prevent rust and mold?
Thanks, Rick