buffalobill wrote:
lots of reasearch already done for you at:
http://www.buildingscience.com/resou...ns/default.htm
then see mfg website to localize this to you:
http://www.owenscorning.com/


Thanks for all the feedback. The info on buildingscience.com
basically said if the insulation will wick moisture then place it away
from the wall. If the insulation will resist moisture then place it
against the wall.

I am using Roxul Flexibatt insulation
(http://www.roxul.com/sw47757.asp) which is moisture resistant (made of
basalt and slag) . The installation tips even say to place it flush
against the wall.

This is great stuff to work with - easy to cut, easy to handle and
install, little to no itching ... and R14 for 2x4 walls.