The foam insulation was to be installed vertically around the edges of the concrete slab 2 inches thick and 2 feet deep. The idea is to trap the heat in the slab and soil beneath. The foam would need to be installed after the walls were framed, inside of the band board (which also serves as the concrete form). Then the concrete would be poured.
At this point, I'll jump ahead to the foam stuff, since that's the topic, here. But a couple things happened first. So if you want to keep things in strict chronological order, stop reading and skip to the next entry.
Any way, back to the foam. I had a relatively small window of time to get it installed. The band board was set on Tuesday and Jason wanted to get the gravel base for the concrete in on Wednesday or Thursday and pour on Friday or Saturday. In the middle of a horrible drought, the soil was hard as rock and it was August in Southern Illinois (hot) and I'm old. So very luckily, I found some help: Super Al.
I must admit, Al did almost all the digging while I cut and fit the foam. Al got all the digging done and I fit most of the foam in one day. The next day I fit the rest and back-filled the soil around the foam that Al hadn't gotten to.
The final step in this process was to wrap the top exposed edge of the foam board/band board sandwich with self adhesive rubber flashing. This will act as an additional termite barrier as well as moisture flashing.
So, that's ready for gravel base and then concrete. Oh, one other thing before the concrete. I want to rough-in a bathroom in one corner, even if I never add the toilet. And I really didn't have time to dig in all the plumbing before the concrete pour, so I formed off that part of the floor to be poured later.
That's that. Next blog, back to before the foam.
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