Here you can see an early stage in constructing the cantilevered roof.  Note at the very left of the photo where the roof hangs out with no visible support.   Running horizontally in the photo is the first of two massive grider trusses that make the cantilevering possible.

By the way, the end-most window of the house, the “Star Window”, looks over the landscape and toward the ecliptic, so that we’ll be able to see the rising Full Moon as well as planets Jupiter, Saturn, and Mars as various times during the year.  This photo is of the rising...

ICF is great for energy efficiency and confort.  It’s excellent at stopping all three forms of heat transfer: conduction, convection, and radiation.  In addition, it provides a large thermal mass to stabilize inside temperatures while absorbing exterior heat or cold.  While the...