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11-428 80 Emerson Way Air LeakageAIR LEAKAGE REPORT Date:May 25, 2012 Rating No.:11-428 Building Name:80 Emerson Rating Org.:Center for EcoTechnology Owner's Name:Phone No.:413-586-7350 Property: 80 Emerson WayRater's Name:Evan Dick Address:Northampton, MA 01060Rater's No.:7633799 Builder's Name:Richard Lloyd Weather Site:Northampton, MARating Type:Confirmed File Name: 11-428 80 Emerson FINAL 5-25-2012.blgRating Date:5/17/2012 REM/Rate - Residential Energy Analysis and Rating Software v12.99 This information does not constitute any warranty of energy cost or savings. © 1985-2012 Architectural Energy Corporation, Boulder, Colorado. Whole House Infiltration Blower door test Heating Cooling Natural ACH:0.18 0.13 ACH @ 50 Pascals:2.93 2.93 CFM @ 25 Pascals:531 531 CFM @ 50 Pascals:834 834 Eff. Leakage Area: [sq.in]45.8 45.8 Specific Leakage Area:0.00015 0.00015 ELA/100 sf shell: [sq.in]0.85 0.85 Duct Leakage Leakage to Outside Units Ducts CFM @ 25 Pascals:62 CFM25 / CFMfan:0.0493 CFM25 / CFA:0.0291 CFM per Std 152:N/A CFM per Std 152 / CFA:N/A CFM @ 50 Pascals:97 Eff. Leakage Area: [sq.in]5.34 Thermal Efficiency:N/A Total Duct Leakage Units CFM25/CFA Total Duct Leakage:0.0000 Ventilation Mechanical:Exhaust Only Sensible Recovery Eff. (%):0.0 Total Recovery Eff. (%):0.0 Rate (cfm):87 Hours/Day:16.0 Fan Watts:39.1 Cooling Ventilation:Natural Ventilation ASHRAE 62.2 - 2010 Ventilation Requirements For this home to comply with ASHRAE Standard 62.2 - 2010 Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings, a minimum of 59 cfm of mechanical ventilation must be provided continuously, 24 hours per day. Alternatively, an intermittently operating mechanical ventilation system may be used if the ventilation rate is adjusted accordingly. For example, a 118 cfm mechanical ventilation system would need to operate 12 hours per day, as long as the system operates to provide required average ventilation once each hour.