How wet can you get untreated unpainted wood before you get mold problems? My coop is unpainted, and with the lice (just dusted the whole “main coop” gang with permethrin) I figure it’s time for a solid cleaning. I want to use permethrin spray directly on the wood, take out the poopy tarps, and start a new floor with wood chips. I live in a humid woods, so hay or straw would mold much too quickly. Just concerned about getting the wood wet, I’ve always been very careful to keep it dry so I’ve never spray-cleaned, only scraped. Am I being ridiculous?