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Diagnostic Test House #1 - Block House #2 - AAC House #3 - Frame
Whole House Air Tightness 7.6 9.4 7.5
Duct System Air Tightness, CFM25total 166 188 148
Duct System Air Tightness, CFM25out 84 128 65
CFM25out as a % of Floor Area 7.10% 10.80% 5.40%
SF6 Ventilation Rate (Natural ACH) 0.13 0.32 Fresh Air Damper Open  0.25
0.14 Fresh Air Damper Closed
TVOC, mg/cu.m. 3.8 1.7 5
Formaldehyde, ppb 56 30 58
Final Energy Star Rating 86.8 87.1 88.5

Table 2. Measured Ait Tightness, Ventilation, and VOC Levels

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