PHOTO REQUIRED or additional documentation required of foundation wall insulation per ANSI/RESNET/ICC 301-2019 APPENDIX B and MINHERS Chapter 9. Raters/RFIs are responsible for documenting reasons for missing photos. If applicable/visible, Rater/RFI verifies and documents the correct foundation wall types, thicknesses & studs, lengths & heights, heights above & depths below grade, locations, and if visible, insulation R-values, grades & dimensions.
- Be sure that where multiple foundation wall types exist, they are handled separately, including where their “location” with respect to conditioned areas of the home may vary between wall types and within the same wall type.
SCORING:
- Satisfactory: No errors in verification
- 1: One to two minor errors in verification (listed below) (this is per verified wall)
- 2: NO PHOTO OR three to four minor errors (listed below) in verification OR one to two major errors in verification (this is per verified wall)
- 3: Five or more minor errors (listed below) OR three or more major errors in verification (listed below) (this is per verified wall)
GUIDANCE:
Minor AGW Verification Errors:
- Insulation thickness of each verified Foundation Wall (not including framing) off by 0.5 to 1.0 inch
- Incorrect Foundation Wall Construction Type verified
- If the wall is framed out and finished on the interior, Incorrect Foundation Wall Studs Type verified
- Insulation R-Value of each verified Foundation Wall off by 5% to 10%
- If Continuous Insulation, Top of Wall to Top of Continuous Insulation of each verified Foundation Wall off by 0.5 to 1.0 foot
- If Continuous Insulation, Top of Wall to Bottom of Continuous Insulation of each verified Foundation Wall off by 0.5 to 1.0 foot
- If Stud/Cavity Layer, Incorrect Insulation Material of each Foundation Wall verified
- If Stud/Cavity Layer, Incorrect Stud Type of each Foundation Wall verified
- If Stud/Cavity Layer, Incorrect Sheetrock Thickness of each Foundation Wall verified
- Height Above Grade of each verified Foundation Wall off by 0.5 to 1.0 foot (distance from grade level to the top of the foundation wall)
- Depth Below Grade of each verified Foundation Wall off by 0.5 to 1.0 foot (distance from grade level to the top of the slab floor)
- Total Horizontal Exterior Perimeter Length of each verified Foundation Wall off by 5% to 10%
- Incorrect Enclosure of each Foundation Wall verified
- Incorrect Location of each Foundation Wall verified
Major AGW Verification Errors:
- Insulation thickness of each verified Foundation Wall (not including framing) off by greater than 1.0 inch
- Insulation R-Value of each verified Foundation Wall off by greater than 10%
- Incorrect Insulation Grade of each verified Foundation Wall (based on ANSI/RESNET/ICC 301-2019 Appendix A depth/void variance for insulation type and grade)
- If Continuous Insulation, Top of Wall to Top of Continuous Insulation of each verified Foundation Wall off by greater than 1.0 foot
- If Continuous Insulation, Top of Wall to Bottom of Continuous Insulation of each verified Foundation Wall off by greater than 1.0 foot
- If Stud/Cavity Layer, Incorrect stud depth, spacing, or framing fraction verified
- Height Above Grade of each verified Foundation Wall off by greater than 1.0 foot (distance from grade level to the top of the foundation wall)
- Depth Below Grade of each verified Foundation Wall off by greater than 1.0 foot (distance from grade level to the top of the slab floor)
- Total Horizontal Exterior Perimeter Length of each verified Foundation Wall off by greater than 10%
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