In section 6.5 Test Room and Exterior Wall Assembly Thermocouples, there is some ambiguity in the requirement for the exterior face thermocouples being required to be installed for both the calibration wall assembly and the test wall assemblies. Numerous locations within the document separate the descriptions of the “exterior wall assembly” from the “Calibration Wall”. This leads to am implied disparity between the text of section 6.5.3 and the referenced Figure 10. Further, details of this exterior wall instrumentation are omitted from the test sample instrumentation outlined in Section 12.2. The proposed text and figure revisions seek to clarify the requirements and remove this implied disparity.