SPRAY FOAM!!! not to be confused with the bubble machine I have previously owned!

At the end of week two, we had all of the exterior walls insulated with a closed cell, soy based spray foam.  The product provides a moisture and vapor barrier as well as an Insulation rating better than any fiberglass insulation we could have installed.  There was a noticeable difference in the temperature of our whole house within 24 hours of this product being applied.  It seems to be money well spent!