The Old Fresh Air Camp Ceiling

Now, before y'all start hunting around for this old camp seeking thrills and plunder, I want to let you  know 1)  there isn't anything worth anything, 2)  it's dusty, moldy, and has asbestos issues, and there's no water or electricity, and 3)  it's locked tight and it's on private property which I patrol with my pit bull Osama. This is the ceiling. Not healthy.