I actually really like open air coops and while we could have them here, keeping rain and snow out of the roost area and nests could be tough, plus I had floods last year so having an enclosed, slightly elevated coop gave my flock a safe place to ride out the floodwaters.
I've had mites, once...
Love how open that is for a warm climate!
Nothing dries around here, so even a minimal amount of wetness of the coop in the morning = won't be dry by nightfall. :(
DE is very controversial on here, some people swear by it, others don't touch it with a 10 foot pole. I had some and didn't know what to do with it so I dumped it on an ant hill... at least no more ants?
I wouldn't use any spray while cleaning. Assuming your coop is wood, moisture is the...
I've never cleaned my roosts before (I also use tree branches)... if there is any poop, a paint scraper gets it off real quick.
Frequency of cleaning depends on a variety of factors, such as overall coop size, flock size, climate, bedding, etc. So like I have 11 birds in 60 sq ft with wood...