Climate Zone / Recommended R Values

Here is a climate zone map (by county) for the 2004 Supplement to the IECC, the 2006 IECC, and ASHRAE 90.1-2004 for Dayton Ohio, located in Montgomery County.  We are in Climate Zone 5.

So per the Building America Special Research Project: High R-Value Enclosures for High Performance Residential Building in All Climate Zones (February 2011) the following are the design recommendations that should exceed the code by at least 2x.

True recommended R values, including thermal bridging:

Wall = 30
Compact Roof = 50
Basement Wall = 15
Slab Edge = 10
Windows (U/SHGC) = 0.24/<.50
Sub-Slab = 7.5