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Riverview E I WSEC Air Barrier Testing Report <br /> c . c v c o r. <br /> corrected for outside air temperature and pressure. Measured pressure differences are averaged, and airflows <br /> for fans running simultaneously are summed. <br /> An unweighted regression estimates the model parameters C and n based on converted volumetric airflows Qo. <br /> The leakage coefficient C is"corrected"and renamed to Co to adjust for standard reference conditions:sea-level <br /> pressure and a 68 degrees Fahrenheit temperature. The pressure exponent n is a measure of air turbulence, <br /> and must fall within a small limit to ensure model validity according to regulations. The regression's correlation <br /> coefficient r2 must be sufficiently close to 1.0 to indicate a proper agreement between the measured data and <br /> the power-law model: <br /> Qo=Co(dP)" <br /> Standard volumetric airflow estimates Qo can now be computed for any given dP and compared to other building <br /> sites given the leakage coefficient correction Co. <br /> Soloveda follows the E779-15 guidelines both for computing small sample-size confidence intervals using the T- <br /> distribution, and for combining parameters and their confidence intervals from pressurization and <br /> depressurization data. <br /> Test Statistics <br /> The following tables document the individual test statistics across 2 zones. <br /> Table 5: Zone "ends" Pressurized Test Results with Confidence Intervals <br /> Parameter Low Mid. High Limit Test <br /> Total Leakage @ 75 Pa 0.216 CFM/ft2 0.218 CFM/ft2 0.220 CFM/ft2 <0.25 CFM/ft2 PASS <br /> Pressure Exponent,n 0.705 0.726 0.748 0.45< n<0.85 PASS <br /> Leakage Coefficient, Co 241.10 263.08 287.07 <br /> ELA @ 75 Pa 2.732 ft2 2.753 ft2 2.775 ft2 <br /> Correlation Coefficient,r2 � ' >0.98 PASS <br /> Page 4 1 12 <br />