wrote:
I'm trying to decide on the best approach to insulating a basement
wall. I'm currently contemplating the following:

snip

Prime challenge in reducing the huge energy loss through basement is
moisture-control. Exit-path, as in siding etc. upstairs, is essentially
non-existent.

See http://www.buildingscience.com/resources/basements.htm and links
within for discussion of ongoing research.

J