I have a de-humidifier in the room, and 2 fans on each side of the room to keep the air flowing. I have a consistent 55-60% humidity, and I watersealed the wood prior to final construction. I think I will be fine. I check on my snakes at least 5 times a day, if I notice any mold/mildew I will take them out immediatley. I dont think anyone could comprehend how much I care for these animals, so trust me when I say I did my research on this project before I built it. I was looking into buying Vision or RB, but I found to be a better solution due to me having the tools for it.
Thanks for your concern, and I will keep my eyes open.