Honey08
Waffled a lot!
Mine choose to come in, despite the stables being hot, but we have lots of horse flies, and that seems to be the deciding factor. I have chains across the open doors, sun reflectors up at the sky lights, fans in the eaves and a water misting system in the overhang (not very strong due to the water pressure, but they seem to like it). If it gets really hot I sponge them down with wet sponges. Wet hay helps too.
I find the heat nearly as bad as a bad winter!
I find the heat nearly as bad as a bad winter!