I'm in the Bay Area as well. I don't have experience with the breeds listed. I just want to defend your set up. You seemed a bit pecked on. My hens have a large run, but a fairly small coop that is used mostly for sleep and nesting boxes. If you have some shade and rain/mud protection in...
We use a power washer, and it is great! Our climate here in No. California is quite dry, our coop is well-ventilated, and we wash on sunny days. The wood dries out in no time. Every situation is different. We recently used it to clean the deck and rid the exterior of the house of cobwebs.
I left backyard chickens for a few years, so I needed a new sign-in. I have had backyard chickens for about 6 years. My current flock of six consists of a white leghorn, barred rock, araucauna, wellsummer, light brahma, and an unknown-breed black hen (brown eggs).
We're planning to expand...