My coop is a converted cubby house so not ideal for this climate, but for the last year the only moisture was in the air. We are having our first bit of decent rain at the moment. As soon as it stops raining all the moisture evaporates & the place practically steams. The ground returns to parched. I haven't even been able to get my compost to work because I'm not great at watering it & it dries out all the time. I'm still to be convinced that DL can work in a closed coop in this climate, but as I said, it works really well in the run when it's dry.
The place we intend to build the coop will likely be dirt floor which should help as well. Just wasn't sure if throwing pine straw on a dirt floor and going from there would be good enough to get things going. Will be quite a few months before we have leaves as fall is late here. Usually October, sometimes into November. 