I recommend poop boards in the coop to greatly increase the life of the coop bedding. I use hemp but have also used large flake pine shavings. I clean out the coop bedding once a year. The poop boards are cleaned daily.
If you have snow, I recommend a run with a solid roof. That's what I have and I've built the run so it is as secure as the coop so it's always open to the coop. Windows that would allow a draft across the birds are closed for the winter.
I cover most of the run walls with tarps for winter.
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Put ventilation in high, under the soffits with complimentary gable and ridge vents that are open year round.
For summer, in have long windows all the way around the roost area so the birds get good breezes on hot summer nights. I also run a fan of a window at the front of the coop to help keep the air moving.
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The run is covered in wood chips that I get for free at the local Highway Department.
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