1622 E MARINE VIEW DR BUILDING E 2022-08-29

E 6 C. Riverview E I WSEC Air Barrier Testing Report o v o < Zone Summaries The following tables are a more detailed summary of test results across all 2 zones including Low and High bounds of that value's 95% confidence interval in addition to the average (Mid.)value. See the Test Procedure section for more detail about the Leakage Coefficient and Pressure Exponent. Table 3: Zone "ends" Test Results (Positive and Negative Pressure) with Confidence Intervals Parameter Low Mid. High Limit Test Total Leakage @ 75 Pa 0.196 CFM/ft2 0.198 CFM/ft2 0.200 CFM/ft2 < 0.25 CFM/ft2 PASS Pressure Exponent,n 0.678 0.709 0.740 0.45 < n<0.85 PASS Leakage Coefficient, Co 224.14 255.72 287.31 ELA @ 75 Pa 2.474 ft2 2.499 ft2 2.524 ft2 Table 4: Zone "mid" Test Results(Positive and Negative Pressure) with Confidence Intervals Parameter Low Mid. High Limit Test Total Leakage @ 75 Pa 0.241 CFM/ft2 0.242 CFM/ft2 0.242 CFM/ft2 <0.25 CFM/ft2 PASS Pressure Exponent,n 0.677 0.688 0.699 0.45<n<0.85 PASS Leakage Coefficient,Co 223.50 234.35 245.21 ELA @ 75 Pa 2.089 ft2 2.097 ft2 2.105 ft2 ASTM E779-15 Test Procedure ASTM E779-15 defines a power-law model relating differential pressure across a building envelope(dP) induced by fans with the corresponding airflow(Q)through an orifice with a leakage coefficient C and pressure exponent n: Q= C(dP)" Ideally, a test consists of pressurizing and depressurizing a building with fans at differential pressures from 30 Pa to 75 Pa. Zero-airflow measurements before and after the test adjust measured dP to correct for any bias pressures detected (Wind,stack effect, etc). Pressurization airflow measurements Q are converted to volumetric standard airflows Qo of the inside air by correcting for temperature and barometric pressure. Likewise, depressurization test measurements are Page 3 1 12