I don't agree that old posts should not be bumped up. There is a lot of good information that is old - some very old. When you add to it, a lot of the times, you are adding information that someone may need when they search. Most people, including me, use Google, not BYC to search, because...
Welcome. If any part of your coop, or run is on the sun, I recommend the two roof approach. Here in the south, our UV indexes are high. Heat is not good for chickens.
Welcome. I would keep them in as long as you can - I know this is different than what others say, but, I like to keep track of the "vulnerable" and in the house is the only way I can do it. About the greenhouse, if you can secure it so that predators cannot get in and control the temperature -...
Welcome. You can probably Google hatcheries near me and get a list of hatcheries and then read reviews. If you plan to keep your chickens for a long time - stay away from production breeds.