S-F's comments about problems encountered with what I'll call 'junction areas', where walls meet floors, where walls meet roof rafters, etc. is really important. In my early efforts I did not include that, and I didn't get all of the insulation effect I should have from the effort and money I put into insulating.
It would be a really good idea to get some visuals on this problem (photos, drawings, charts, etc.) and photos on proven remedies to the problem. This is an often overlooked insulation failure area that we can all benefit from knowing more about.
By the way, the current issue of Fine Homebuilding has a very interesting article on a building (that houses the office of
Building Science Corporation) that was foam wrapped, developed some problems, and 15 years after it was constructed, was de-insulated, inspected, and re-insulated. Very interesting... worth buying the mag or a visit to the library, or
checking out this link.
-AC_Hacker