No raised flooring? cold air from above?
Do vents all line the exterior walls? Just judging from the garage door, is the cold air entering from ~15-20 ft.?
are you doing hot aisle/cold aisle?
Was this building custom built?
or re-purposed with warehouse racks?
The high ceiling are nice, assuming the cooling intake is all the way up on the ceiling.
We are doing hot/cold aisle. Our engineers assure us the high ceilings and concrete will do a lot of the work dissapating the heat for us.