My roosts are over my built-in brooder, which has a flat sheet of plywood on top. It is not painted and neither are my roosts. I scrape it with a garden hoe that has a broken handle. It is short enough it will fit in my coop without banging on walls or breaking my window.
Once every three to four years. Not because it is messy but I want that stuff on the garden. I do use the stuff from the compost pile more often, usually two or three times a year when I plant stuff. I store completed compost in feed bags in the dry.
I use pine wood shavings from Tractor...
The deep litter method is where you turn your coop or run into a compost pile. The microbes that eat the materials need enough moisture to live and reproduce. If you get too much moisture it can go anaerobic and become a stinky slimy mess. Too dry and the organisms can't reproduce or do their...