V8 Predrywall QA Q8: SlabFloors

PHOTO REQUIRED or additional documentation required of slab perimeter insulation or lack thereof per ANSI/RESNET/ICC 301 APPENDIX B and HERS® Standards Chapter 9. Raters/RFIs are responsible for documenting reasons for missing photos. If applicable/visible, Rater/RFI verifies and documents the correct slab area, perimeters, depth below grade, floor covering (and R-value), exposures, insulation type, grade and R-values. Slab floors should be separately verified as covered or exposed. Typically, Raters/RFIs are not present when slab insulation is installed before the slab is poured, and are therefore not able to collect photodocumentation. One option is that field verifiers can photodocument a slab insulation inspection of homes on the same builder’s adjacent lots while in the area performing pre-drywall and/or final inspections. As an alternative, the builder can provide slab insulation photos and documentation for the home. The QAD should verify that the documentation provided is sufficient to confirm the quality and accuracy of the installation.

SCORING: "Satisfactory": When all mandatory photos are provided, and no errors in verification "Unsatisfactory": When all mandatory photos are provided, and at least one error in verification "Missing Photo": One or more of the mandatory photos are missing, but no errors in verification "Unsatisfactory + Missing Photo": One or more of the mandatory photos are missing, and at least one error in verification "N/A": No Slab Floors in the home

GUIDANCE: Slab Verification Errors - The Rater/RFI can correctly identify or determine the following items: * R-Value and Grading - is within the depth/void variance for insulation type and grade identified * Slab surface area, depth, and perimeter are appropriately measured * Floor Covering and Covering R-value, if installed, is appropriately documented * Slab exposure is appropriately documented