skeezics says...

here in n.c. it gets pretty hot in the summer months. do you have
vents at each end of the building? if so, you could put a large fan
blowing out at one end. my shop is uninsulated also exept for the foam
sheating under the siding. nothing in the roof. it is under a few
shade trees and 2 story so i am sure that is helping. my shop stayes
cool up till around 4 pm in the summer. after then i go to the house.
if you dont insulate then ventilation and air flow are the key to
keeping cool. on days i want to work in the late afternoon i set a fan
blowing in downstairs and one or two blowing out upstairs. seems to
work ok. i have a window a c unit that suposedly works. havent ever
pluged it in so i cant say weather it does or not. you are welcome to
it if ya want to haul it home. maybe it willl make it cooler to work
in there but might be kind o exspensive. lol.

skeez

I can only imagine what I would pay for AC out there. No vents and they
would be difficult to install.