Advice on how to get hot air out and keep it out

Pictures: https://imgur.com/a/Iw71LLP

First off yes I'm aware I'm losing money by mining but believe it will still pay off long term. (paying 0.09 Kwh)

I have a huge 10hp fan on the roof of the building and it brings the air to the back of the miners a lot of the air is just blown around and I feel that I can optimize it further by using something to help direct the air. Any advice is helpful and appreciated. I'm also running canaan's 741's I currently have 43 setup but will fill up all of the bottom shelves eventually with a total of 64.

Submitted October 01, 2018 at 04:23AM by mrjessup44 http://bit.ly/2DJxJep