The styrofoam I wanted to use was not in stock, so I had to wait for a few days to have it delivered. Along with it came the wire mesh, rebar and plastic.
The first item to go down was the 6 mil vapour barrier. I considered skipping this step since the shed was going to be so much above grade, but it was not a big expense, so I went ahead with it. It will help keep any ground moisture from getting up into the concrete, and damaging it from below.
The insulating layer is Foundation Plus. It is the beaded type of foam, rather than the more solid type, and is supposed to both breathe and allow water to pass down through. It is rated for below concrete slabs, and the idea is to help keep frost out, while also providing support. The R value is a modest 7.5, so I am not expecting a lot of cold protection.
With slopes and odd angles, it took a while to get all the styrofoam in place. There was a small weather window of warmish weather coming up, so we worked some late evenings to get things done. Fortunately, I have a recently retired friend, Jim, who was willing to give me a hand.
Getting the plywood to fit was more of a challenge than the styrofoam. There were slopes and a little bit of unevenness to deal with. Each piece required multiple cuts. After that process, it was just a matter of laying out the mesh, and putting in the rebar.
The Entire Story To Date:
The New Shed - Phase 7
The New Shed - Phase 6
The New Shed - Phase 5
The New Shed - Phase 4
The New Shed - Phase 3
The New Shed - Phase 2
The New Shed - Phase 1