Remodeling my mining farm-- open/closed frames? Intake or exhaust on ceiling?

[Blkmktinsurance]

Summer is quickly approaching..

Last year was a nightmare for cooling, but I managed to deal with 100 degree temps and no AC, I'm sure if I get my airflow refined, I can have even less problems.

We have two walls of rigs, each has a plywood wall constructed with holes cut where the shelves sit for exhaust flow. Behind each wall is the outside structural wall with windows removed, and attic fans fixed inside sucking air out of the room. This works pretty good.

I want to install two or three ceiling fans to either intake or exhaust air, but I'm not sure which is better. I know hot air rises, but with exhaust blowing out the side of the building, it makes it impossible to have rainy weather blow in.

If I change to exhaust out the top, then how do I prevent rain coming in the intakes? I will go take pictures today and upload a better view of what I'm dealing with.

Hopefully I'll get it figured out with the community's help, and help a bunch of people here by posting results

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[fanatic26]

The general rule when dealing with miners is the primary goal is to exhaust the heat. All ceiling fans are going to do is mix and warm the air even more. Pictures will help quite a bit and give me a better idea of what you have going on. Intakes can be passive and screened/covered so no weather ever gets in.