I am in the midst of design/planning for my coop - it will have a shed type roof- but I was wondering about the slope of the actual coop - I'm in Texas so not much snow to worry about here, but I wanted to give them as much room as possible- its a 4x8 coop - 5ft high on one side then sloping down to either 4 1/2 ft or 4ft even, let me know what would be best - also - should I put a roof on my run? or just an overhang? or just shade fabric over the top? what about when it rains? Thanks in advance Everyone is so helpful!