Like the contractor that inspected our basement said:
"Molds feed on cellulose, so anywhere you have that exposed to moisture you're going to end up with mold."
So if you're using wood, which is definitely made of cellulose, you'll want to use one of the solutions they recommended
Or make a sleeve using corrugated plastic and silicone. I'm going to try that in a lightweight enclosure and see how it works.