Gaps and crack...

Apparently the gaps in the XPS are because it shrinks. They went to considerable effort to put them all in the right place, and came back to find gaps had appeared, like this:






They added foam insulation on the inside,

so when they took off the frame, it looked like this:


Then later they filled in the gaps in from the outside, although some gaps still remain,


now underground.


As for the crack, apparently it's just the surface layer of the concrete, added to make an even surface to put the wooden frame on, and not structural.

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Foundation details

Here are some shots of details of the foundation. Gaps in the XPS seem to have been filled. I think it's very important to get into the corners. The different layers of XPS were in different places, so any gaps will have been covered. I'm a bit worried about a crack in the foundation, right in the middle of the house though.