I clean my coop 1 time a week, pitchfork the straw out of the coop all the way down to the wood floor boards, Them add 12" deep of straw in everytime...............My coop walls & ceiling is insulated, water never freezes in the winter, but I do have an air vent, lets in fresh air & expells moisture. I have two large plexiglass windows that let in natural light, but I do have my chickes on light timers...............they lay eggs like crazy right now, waiting for my Oriental game fowls to start laying, I plan on incubating every egg I get from them this year.......................................................................................................................