We're doing something similar with old run-down stables. Here's my post: https://www.backyardchickens.com/forum/viewtopic.php?id=603014
We only discovered the roof was leaky when we were there in a downpour. The trouble is getting the while it's NOT raining to fix it!
I don't see a problem putting sand under the bedding. In fact, I think that would be a great idea. Chickens will dig through bedding, so it's probably better that they get to the sand than the old dirt.
How long has it stood empty?
To 'sanitise' our stables, we coated all the wood in creocote. Hopefully, that should give the wood a new lease of life, with the oils, and kill any nasties that might be lurking.
How big is the building? That's an awful lot of nestboxes. From the looks of things, you could sell the two biggest sets and just keep one for now, selling it at a later date if you decide to. What breed are you thinking of keeping? If they're not too large, you might find those are an ideal size!
We only discovered the roof was leaky when we were there in a downpour. The trouble is getting the while it's NOT raining to fix it!
I don't see a problem putting sand under the bedding. In fact, I think that would be a great idea. Chickens will dig through bedding, so it's probably better that they get to the sand than the old dirt.
How long has it stood empty?
To 'sanitise' our stables, we coated all the wood in creocote. Hopefully, that should give the wood a new lease of life, with the oils, and kill any nasties that might be lurking.
How big is the building? That's an awful lot of nestboxes. From the looks of things, you could sell the two biggest sets and just keep one for now, selling it at a later date if you decide to. What breed are you thinking of keeping? If they're not too large, you might find those are an ideal size!