Chicken Chores & Whitewash. Interested in whitewash? It’s a process farmers have used for years to coat the inside of structures where animals are kept or, more often, milked. It has mild antibacterial and I’ve noticed that it brightens up our otherwise dark chicken coop, particularly in the winter.
http://gardeninggrl.wordpress.com/2012/04/16/chicken-chores-whitewash/