If the wall of house has 5/8 drywall over 3.5 inches of fiberglass batt insulation and 1 inch of extruded polystyrene with a 1 inch air gap and
finally a 4 inch common brick on the exterior what is the total R factor of the wall? The air gap has an R valuie of 0.17. Use the chart on your
Thermodynamics assignment to find the vaues for the listed building materials.
O a
22.65
Ob
17.85
Oc 16.99
Od
16.257