the trouble is, well you can work out what the space is that is being used as the grow room lol
those areas are always hot and humid in the summer months and harder to cool, im fortunate in that im high up, inside the property stays relatively cool, ive installed fly nets at the windows, and have one to pull over the hatch and leave that open, stops any bugs getting inside and up in there while allowing fresh air to pass up still, thinking it would be better to have a fan just inside the entrance to suck even more air from below up into the room, open the flap on the side of the tent, hope for the best...