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12-273 AirLeakageAir Leakage Property 39 Mark Warner Dr Northampton, MA 01062 Weather:Northampton, MA 39 Bear Hill 12-273 39 Bear Hill final 4-12-2012.blg Organization Center for EcoTechnology 413-586-7350 Evan Dick Builder Saloomey Construction 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 63 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 126 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. REM/Rate - Residential Energy Analysis and Rating Software v14.1 This information does not constitute any warranty of energy cost or savings. © 1985-2013 Architectural Energy Corporation, Boulder, Colorado. HERS Confirmed 4-12-2013 Rating No:12-273 Rater ID:7633799 Duct Leakage Ventilation Blower Door Test Heating Cooling Natural ACH 0.20 0.15 Leakage to Outside Units ducts Mechanical Exhaust Only ACH @ 50 Pascals 3.30 3.30 CFM @ 25 Pascals 119 Sensible Recovery Eff. (%)0.0 CFM @ 25 Pascals 745 745 CFM25 / CFMfan 0.0732 Total Recovery Eff. (%)0.0 CFM @ 50 Pascals 1169 1169 CFM25 / CFA 0.0470 Rate (cfm)67 Eff. Leakage Area (sq.in)64.2 64.2 CFM per Std 152 N/A Hours/Day 24.0 Specific Leakage Area 0.00018 0.00018 CFM per Std 152 / CFA N/A Fan Watts 30.1 ELA/100 sf shell (sq.in)0.99 0.99 CFM @ 50 Pascals 187 Cooling Ventilation Natural Ventilation Eff. Leakage Area (sq.in)10.25 Thermal Efficiency N/A Total Duct Leakage Units CFM25/CFA Total Duct Leakage 0.0000