I've tried searching to make sure it wasn't a duplicate and haven't found any results.
I know that stone tiles are supposed to slow down the rate things break apart, however this is different for chicken coops for some reason. I currently have two chicken coops, one on dirt ground while the other is on stone tiles. The one on stone tiles have been needing repair a lot more often than the one that isn't. So far I've had to repair it twice while the other has not needed to be repaired yet.
Didn't seem like it was supposed to be this way, so sorry if it's not a bug.