Thanks for adding you locale in your signature avatar thingie...helps a LOT! Sometimes I'll reply to a post and ramble on and on and on about snow, etc., only to find out later on they live in Florida!! I wish more members would at LEAST put their state in there!
Our so-called "dirt" is really a mix of I'd say about 25% dirt and 75% of volcanic crumble (very fine). It really isn't what you'd call 'dirt'.
Yes, my run has a complete metal roof and I'll be putting up the 6-mil greenhouse grade clear plastic soon...they'll be snug as a bug in a rug...
I am in total agreement with you @aart on this one. Dust is just part of the game plan with chicken keeping. But like the OP I'm noticing that with the every-other-day raking/cleaning I do in their run the 'level' of the run seems to be deteriorating (going down!) to the point I can see almost...