Dawn soap kills ticks and fleas so I use it to wash out the coops. I make a soapy mixture then I scrub the coop down let it sit for a while, scrub down again and use a bleach water combo to rinse. Then I hose it all off with water and let the sun dry the coop. I then repaint the surfaces. Once everything is dry I add DE and fresh pine shavings in the main area and DE and Fresh hay in the nest box areas. I also have vinyl flooring in the main area under the pine shavings. It makes clean up easier. The chickens are not always cooperative so I keep them penned out of the way but once I add the pine shavings and hay they are right in there helping me to spread it out. I only do the deep clean in the spring and in the fall if I can.
Caroline