I need to find me some of this humidity so I can see it for myself...
Except for 4 years in Colorado I've lived in south and central Texas all my life..
From Corpus, San Antonio to Victoria and Port Lavaca, to Waco, Ft Worth and Dallas until the mid 70's mostly without A/C except on Saturday when we went shopping and I've never seen mold growing on the walls...
I've heard of the black mold, I think I even got insurance for it... or maybe it's an exclusion in my policy, I don't remember... I know I don't want me none of it...
My last three trailers have been stored under a tin roof building and I open both of the roof vents year-round and even when camping and running the A/C the vent it the bath is open at least partially...
These newfangled trailers is so tight they can't breathe, you got to let them draw a breathe once in a while...