Not to mention keeping the air moving in the spring for evaporation (reduce condensation). I have 3 ceiling fans in my shop (32' x 40') that blow up in the winter. Switch them to blowing down in the spring/summer.I had them it my last shop. Man what a difference. It really helped on hot days and also as you mentioned it helped the smoke and fumes dissipate the shop faster. I am hoping to use this fan to pull the heat down from the ceiling in the winter time.
Just a slab in the front for now.Are you going to be putting a slab for each of the roll up doors?