Depending on how much light gets inside the coop, you may want to put a light on a timer inside to ensure sufficient photoperiod for egg production. They need around 13 hours. Perhaps you have researched egg production, but here are some tips:
http://freerangereggs.blogspot.com/2009/03/why-hens-stop-laying.html


If you take the time it takes, it takes less time.
--Pat Parelli

American by birth; Alaskan by choice.
--ironbender