JIM'S TIP - August 2010
Where do I find the insulation value of a 2 x 4 steel stud wall with 1/2" sheetrock, 1/2" foam sheathing , wood siding and COMFORT FOAM®? Oak Ridge National Laboratories (ORNL) has published a Whole Wall Rating/Label for Metal Stud Wall Systems with Sprayed Polyurethane Foam (SPF); Steady State Thermal Analysis which can be found on P 12, Products, R-Value Performance Studies in the BASF Residential Toolkit.
By clicking on each component, you will find detail drawings showing the specific construction. The boxes on the right are those which represent R-values, calculated using tests.