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24C-005 13-361 AirLeakageAir Leakage Property 285 Prospect St Northampton, MA 01060 Weather:Northampton, MA 285 Prospect St 13-361 285 Prospect St final 3.25.14.blg Organization Center for EcoTechnology 413-586-7350, ex 234 Jamie Callan Builder Forrest Devine Whole House Infiltration 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 89 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 179 cfm mechanical ventilation system would need to operate 12 hours per day, as long as the system operates to provide required REM/Rate - Residential Energy Analysis and Rating Software v14.4.1 This information does not constitute any warranty of energy cost or savings. © 1985-2014 Architectural Energy Corporation, Boulder, Colorado. HERS Confirmed 3-25-14 Rating No:13-361 Rater ID:3463906 Duct Leakage Ventilation Blower Door Test Heating Cooling Natural ACH 0.14 0.10 Leakage to Outside Units MAIN UPPER Mechanical None ACH @ 50 Pascals 2.38 2.38 CFM @ 25 Pascals 0 114 Sensible Recovery Eff. (%)0.0 CFM @ 25 Pascals 1306 1306 CFM25 / CFMfan 0.0000 0.0822 Total Recovery Eff. (%)0.0 CFM @ 50 Pascals 2050 2050 CFM25 / CFA 0.0000 0.0594 Rate (cfm)0 Eff. Leakage Area (sq.in)112.5 112.5 CFM per Std 152 N/A N/A Hours/Day 24.0 Specific Leakage Area 0.00018 0.00018 CFM per Std 152 / CFA N/A N/A Fan Watts 0.0 ELA/100 sf shell (sq.in)1.08 1.08 CFM @ 50 Pascals 0 179 Cooling Ventilation Natural Ventilation Eff. Leakage Area (sq.in)0.00 9.82 Thermal Efficiency N/A N/A Total Duct Leakage Units CFM25/CFA CFM25/CFA Total Duct Leakage 0.0000 0.0000