Joel Miller came out again and finished up the concrete work. After getting a delivery of rock and spreading it out, he put down a vapor barrier and some steel mesh.
Concrete was coming in the morning, and we wanted to keep everything from freezing, so we set up a diesel powered heater in the garage and aimed it through a cutout in the wall. This will eventually be where the door is placed.
Concrete pour went well. I kept the heater going over the entire weekend to keep the shop above freezing. The Joel came back and cut in the control joints in the concrete. This left a horrible mess that needed to be cleaned up.