I could definitely be wrong kbad because I have never been inside a grow facility before. However I work inside a steel building that strangely enough looks almost identical to building #1.
There is no drywall in the factory I work in.. The steel sheet metal is all there is.. I will guess that the plants will each have their own grow pod that contains each plants individual climate control per strain required or intended. Seriously we get plenty of heat inside our building without drywall. Unless it is needed for possible mold inhibitors.. So i have no clue on that