Hello, I'm a new member of BYC and wanted to share an interesting project I've undertaken at a 114 old farmstead I recently moved into in Whitmore Lake, Michigan which came equipped with a (100 year old?) old barn/shed that was used for many many years as a chicken coop, and then abandoned. Enclosed are pictures of the chicken barn after a I removed much old farm equipment and trash from the inside. The flooring of the shed is all old planks, most rotted, covered by, I kid you not, about 100 years of dried chicken manure and hay that has by now formed thick sodlike sheets. This sodlike covering seems like it would be best to remove completely, and then replank and cover the gaps in the plank flooring. I hope to use a deep litter system in there, but the big job will be removing the old dried manure. This is a long project and I'll update on many other details (the yard, the chicken run, environment, etc, but firstly wanted to get some feedback: 1) is the old dried manure a health hazard for humans or any new chickens? I am assuming universal precautions and wearing respirator as I rake it out, of course. Here's the entrance, another angle... (Front) The shed is 20 foot by 16 foot, with an upstairs broodery (this is basically an attic in the shed), no electricity. There is a chicken door in the back area, but it opens into a glade of trees that grew up over the years, so I plan on sawing a new door. Is this chicken shed past saving entirely? Thanks for reading!