Hubby built my coop (my idea) on a concrete slab that used to be a dog kennel. It is inside a chain link run. Coop is about 9x15, I think. Since we've had so much rain lately, the coop flooded, and the wood that touches the concrete floor seems to absorb water to about the six inch mark. We are thinking of lining the inside bottom of the walls with 2x4's on top of a silicone sealer and nailing them to the walls of the coop. We hope this will stop the seepage into the coop when it rains. Will it work? Any ideas? Thanks!