Here is a close-up of our foundation just before pouring the slab.  Laying on the ground, underneath the plumbing is rFoil Concrete Barrier Insulation.  This is a double bubble wrap with foil.  The R-value horizontally is approx. 9.8, exceptionally high for the price and ease of installation.  If you look closely you can see that the Barrier insulation covers the entire ground plus goes up  the sides of the foundation.  This is to help prevent some of the cold (from the ground) from transferring through the foundation to the concrete slab (called thermal bridging).  Unfortunately the foundation guys accidentally cut off the barrier insulation going up the sides--not realizing I wanted it there.  They did tape it back on but I'm sure it doesn't perform at the level it should have if it were one piece.   Considering why and how we were building this house, this was quite upsetting to us but this experience, along with many others, taught us NEVER to be off the site when anything new or different was being done.  All the tubing for the radiant floor is also visible.  There are 4 different heat zones for the radiant floor. The tubing is attached to the wire base to prevent it from floating higher inside the concrete slab when it is poured.

The concrete slab is poured.  The entire slab, including where the porch is, was tinted a taupe color as it is our finished floor for the majority of the house.  We had the boxes of tint added right to the concrete mix inside the truck rather than having it 'shaken' onto the slab as it was drying.  The process by which our slab was tinted is called integral tinting.  We did this so the entire slab would be tinted all the way down.  The color turned out to be perfect.  The only thing you have to watch is where one truck load ends and a new one begins.  You can end up with rather different shades of the same color meeting right in the middle of a room.  This did happen to us but luckily over time the differences became much less pronounced. I think some of the difference had to do with how much moisture was in the concrete in each area and as it dried out more, the color evened out.

Wall framing begun	Sheathing started
Rafters going up	Sheathing finished
Foam insulation installed	Purlins to attach siding to installed
East view of unfinished house	West view of unfinished house