Vent but not a draft

What's the best way to vent my shed coop. We have a pop door thats open all day

just make sure they have good ventilation above head hight. we all know heat rises.
Hens cope better with cooler conditions than warmer so good ventilation is very important.

Ventilation is more important at night when they are shut in

We have anout 4 1 inch holes drilled each end of the coop as high as possible, higher than the hen's heads.

It solved our condensation problem - we thought we had enough ventilation before but we didn't!!