The message
from "IMM" contains these words:

This is true. The building in question is a barn, which would have the
floor excavated, and a new floor poured with insulation under. A
massive cold bridge would be to the side. This method solves that. In
most houses with a concrete slab floor it would too.

Seems we can add a

snip drivel

Complete misinformation

Most of what you type is indeed complete misinformation and this is no
exception but you owe it to your adoring public to tell them were I went
wrong. Is it that subfloor insulation is not usually above ground level
or did you have some more exotic location for your cold bridge? Alaska
perhaps. :-)

--
Roger