I am planning on building a "moat" around my existing garden which already has 8' high deer fencing. To solve the "hot" problem, I plan to clasp the wiring about halfway up the deer fence and simply bend the fencing and secure it to the ground, essentially making a tunnel for the chickens. This should protect them from predators AND I can plant things like peas and other climbing plants outside the tunnel to grow over the tunnel, providing them with some fresh stuff to nibble on and more importantly, shade.
Also, their coop is inside the deer fencing raised up on cinder blocks so they can huddle under the coop for shade as well. I am going to fence off the half of the garden that is inside the deer fencing and allow the chickens to fertilize and eat all the weeds on the un-planted side, so I can use it for next year. We will cut a little opening in the deer fence that will feed into the tunnel moat.
Any expert advice out there for this plan? I think it will be pretty great, but it is an experiment.