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Appendix C3: Summary of Commercial and Institutional Building Airtightness Data (C&ISUM.lb3)
Summary values from database of commercial and institutional building airtightness values.
| Element Name | Building Type | Description | Model | Value | Reference |
|---|---|---|---|---|---|
| WLEXMA_CAV | Commercial | Exterior wall, masonry, mean | ELA4 | 4.2 cm2/m2 | C5 |
| WLEXMA_C+S | Commercial | Exterior wall, masonry, mean plus one standard deviation | ELA4 | 6.9 cm2/m2 | C5 |
| WLEXMA_C-S | Commercial | Exterior wall, masonry, mean minus one standard deviation | ELA4 | 1.5 cm2/m2 | C5 |
| WLEXMA_CMN | Commercial | Exterior wall, masonry, minimum | ELA4 | 0.6 cm2/m2 | C5 |
| WLEXMA_CMX | Commercial | Exterior wall, masonry, maximum | ELA4 | 11.4 cm2/m2 | C5 |
| WLEXCP_CAV | Commercial | Exterior wall, concrete panel, mean | ELA4 | 4.0 cm2/m2 | C5 |
| WLEXCP_C+S | Commercial | Exterior wall, concrete panel, mean plus one standard deviation | ELA4 | 6.9 cm2/m2 | C5 |
| WLEXCP_C-S | Commercial | Exterior wall, concrete panel, mean minus one standard deviation | ELA4 | 1.2 cm2/m2 | C5 |
| WLEXCP_CMN | Commercial | Exterior wall, concrete panel, minimum | ELA4 | 1.1 cm2/m2 | C5 |
| WLEXCP_CMX | Commercial | Exterior wall, concrete panel, maximum | ELA4 | 10.0 cm2/m2 | C5 |
| WLEXFRMA_CAV | Commercial | Exterior wall, frame/masonry, mean | ELA4 | 9.1 cm2/m2 | C5 |
| WLEXFRMA_C+S | Commercial | Exterior wall, frame/masonry, mean plus one standard deviation | ELA4 | 13.2 cm2/m2 | C5 |
| WLEXFRMA_C-S | Commercial | Exterior wall, frame/masonry, mean minus one standard deviation | ELA4 | 4.9 cm2/m2 | C5 |
| WLEXFRMA_CMN | Commercial | Exterior wall, frame/masonry, minimum | ELA4 | 4.5 cm2/m2 | C5 |
| WLEXFRMA_CMX | Commercial | Exterior wall, frame, maximum | ELA4 | 19.9 cm2/m2 | C5 |
| WLEXFR_CAV | Commercial | Exterior wall, frame, mean | ELA4 | 8.6 cm2/m2 | C5 |
| WLEXFR_C+S | Commercial | Exterior wall, frame, mean plus one standard deviation | ELA4 | 13.0 cm2/m2 | C5 |
| WLEXFR_C-S | Commercial | Exterior wall, frame, mean minus one standard deviation | ELA4 | 4.3 cm2/m2 | C5 |
| WLEXFR_CMN | Commercial | Exterior wall, frame, minimum | ELA4 | 3.1 cm2/m2 | C5 |
| WLEXFR_CMX | Commercial | Exterior wall, frame, maximum | ELA4 | 15.6 cm2/m2 | C5 |
| WLEXMN_CAV | Commercial | Exterior wall, manufactured, mean | ELA4 | 4.3 cm2/m2 | C5 |
| WLEXMN_C+S | Commercial | Exterior wall, manufactured, mean plus one standard deviation | ELA4 | 7.0 cm2/m2 | C5 |
| WLEXMN_C-S | Commercial | Exterior wall, manufactured, mean minus one standard deviation | ELA4 | 1.5 cm2/m2 | C5 |
| WLEXMN_CMN | Commercial | Exterior wall, manufactured, minimum | ELA4 | 2.4 cm2/m2 | C5 |
| WLEXMN_CMX | Commercial | Exterior wall, manufactured, maximum | ELA4 | 8.7 cm2/m2 | C5 |
| WLEXME_CAV | Commercial | Exterior wall, metal, mean | ELA4 | 4.6 cm2/m2 | C5 |
| WLEXME_C+S | Commercial | Exterior wall, metal, mean plus one standard deviation | ELA4 | 7.2 cm2/m2 | C5 |
| WLEXME_C-S | Commercial | Exterior wall, metal, mean minus one standard deviation | ELA4 | 1.9 cm2/m2 | C5 |
| WLEXME_CMN | Commercial | Exterior wall, metal, minimum | ELA4 | 2.0 cm2/m2 | C5 |
| WLEXME_CMX | Commercial | Exterior wall, metal, maximum | ELA4 | 8.0 cm2/m2 | C5 |
| WLEXCW_CAV | Commercial | Exterior wall, curtain wall, mean | ELA4 | 2.7 cm2/m2 | C5 |
| WLEXCW_C+S | Commercial | Exterior wall, curtain wall, mean plus one standard deviation | ELA4 | 5.6 cm2/m2 | C5 |
| WLEXCW_CMN | Commercial | Exterior wall, curtain wall, minimum | ELA4 | 0.8 cm2/m2 | C5 |
| WLEXCW_CMX | Commercial | Exterior wall, curtain wall, maximum | ELA4 | 6.9 cm2/m2 | C5 |
| WLEXOF_CAV | Commercial | Exterior wall, office building, mean | ELA4 | 4.1 cm2/m2 | C5 |
| WLEXOF_C+S | Commercial | Exterior wall, office building, mean plus one standard deviation | ELA4 | 7.8 cm2/m2 | C5 |
| WLEXOF_C-S | Commercial | Exterior wall, office building, mean minus one standard deviation | ELA4 | 0.4 cm2/m2 | C5 |
| WLEXOF_CMN | Commercial | Exterior wall, office building, minimum | ELA4 | 0.6 cm2/m2 | C5 |
| WLEXOF_CMX | Commercial | Exterior wall, office building, maximum | ELA4 | 19.9 cm2/m2 | C5 |
| WLEXSC_IAV | Institutional | Exterior wall, school, mean | ELA4 | 3.1 cm2/m2 | C5 |
| WLEXSC_I+S | Institutional | Exterior wall, school, mean plus one standard deviation | ELA4 | 5.1 cm2/m2 | C5 |
| WLEXSC_I-S | Institutional | Exterior wall, school, mean minus one standard deviation | ELA4 | 1.0 cm2/m2 | C5 |
| WLEXSC_IMN | Institutional | Exterior wall, school, minimum | ELA4 | 0.4 cm2/m2 | C5 |
| WLEXSC_IMX | Institutional | Exterior wall, school, maximum | ELA4 | 8.6 cm2/m2 | C5 |
| WLEXID_NAV | Industrial | Exterior wall, industrial building, mean | ELA4 | 3.8 cm2/m2 | C5 |
| WLEXID_N+S | Industrial | Exterior wall, industrial building, mean plus one standard deviation | ELA4 | 7.9 cm2/m2 | C5 |
| WLEXID_NMN | Industrial | Exterior wall, industrial building, minimum | ELA4 | 0.4 cm2/m2 | C5 |
| WLEXID_NMX | Industrial | Exterior wall, industrial building, maximum | ELA4 | 15.6 cm2/m2 | C5 |
| WLEXRE_CAV | Commercial | Exterior wall, retail, mean | ELA4 | 6.9 cm2/m2 | C5 |
| WLEXRE_C+S | Commercial | Exterior wall, retail, mean plus one standard deviation | ELA4 | 10.5 cm2/m2 | C5 |
| WLEXRE_C-S | Commercial | Exterior wall, retail, mean minus one standard deviation | ELA4 | 3.3 cm2/m2 | C5 |
| WLEXRE_CMN | Commercial | Exterior wall, retail, minimum | ELA4 | 0.7 cm2/m2 | C5 |
| WLEXRE_CMX | Commercial | Exterior wall, retail, maximum | ELA4 | 12.0 cm2/m2 | C5 |
| WLEXRS_CAV | Commercial | Exterior wall, restaurant, mean | ELA4 | 3.8 cm2/m2 | C5 |
| WLEXRS_C+S | Commercial | Exterior wall, restaurant, mean plus one standard deviation | ELA4 | 5.2 cm2/m2 | C5 |
| WLEXRS_C-S | Commercial | Exterior wall, restaurant, mean minus one standard deviation | ELA4 | 2.3 cm2/m2 | C5 |
| WLEXRS_CMN | Commercial | Exterior wall, restaurant, minimum | ELA4 | 1.4 cm2/m2 | C5 |
| WLEXRS_CMX | Commercial | Exterior wall, restaurant, maximum | ELA4 | 5.5 cm2/m2 | C5 |
| WLEXAS_NAV | Institutional | Exterior wall, assembly, mean | ELA4 | 3.7 cm2/m2 | C5 |
| WLEXAS_N+S | Institutional | Exterior wall, assembly, mean plus one standard deviation | ELA4 | 5.8 cm2/m2 | C5 |
| WLEXAS_N-S | Institutional | Exterior wall, assembly, mean minus one standard deviation | ELA4 | 1.5 cm2/m2 | C5 |
| WLEXAS_NMN | Institutional | Exterior wall, assembly, minimum | ELA4 | 1.8 cm2/m2 | C5 |
| WLEXAS_NMX | Institutional | Exterior wall, assembly, maximum | ELA4 | 6.3 cm2/m2 | C5 |
| WLEXHC_IAV | Institutional | Exterior wall, healthcare, mean | ELA4 | 5.6 cm2/m2 | C5 |
| WLEXHC_I+S | Institutional | Exterior wall, healthcare, mean plus one standard deviation | ELA4 | 7.5 cm2/m2 | C5 |
| WLEXHC_I-S | Institutional | Exterior wall, healthcare, mean minus one standard deviation | ELA4 | 3.7 cm2/m2 | C5 |
| WLEXHC_IMN | Institutional | Exterior wall, healthcare, minimum | ELA4 | 3.7 cm2/m2 | C5 |
| WLEXHC_IMX | Institutional | Exterior wall, healthcare, maximum | ELA4 | 7.6 cm2/m2 | C5 |
| WLEXSP_CAV | Commercial | Exterior wall, sports facility, mean | ELA4 | 7.4 cm2/m2 | C5 |
| WLEXSP_C+S | Commercial | Exterior wall, sports facility, mean plus one standard deviation | ELA4 | 10.1 cm2/m2 | C5 |
| WLEXSP_C-S | Commercial | Exterior wall, sports facility, mean minus one standard deviation | ELA4 | 4.8 cm2/m2 | C5 |
| WLEXSP_CMN | Commercial | Exterior wall, sports facility, minimum | ELA4 | 3.7 cm2/m2 | C5 |
| WLEXSP_CMX | Commercial | Exterior wall, sports facility, maximum | ELA4 | 9.8 cm2/m2 | C5 |
C5. Persily, A.K. 1998. "Airtightness of Commercial and Institutional Buildings: Blowing Holes in the Myth of Tight Buildings." DOE/ASHRAE/ORNL/BETEC/NRCC/CIBSE Conference Thermal Performance of the Exterior Envelopes of Buildings VII, 829-837.
