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11A-006 HERS-326 41 Chestnut Ave air leakage(1)Air Leakage Property 41 Chestnut Ave Leeds, MA 01053 Weather:Northampton, MA HERS-326 41 Chestnut Ave registered.blg Organization Power House Energy Consulting 413-835-5162 Matt Turcotte Builder Keiter Builders 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 42 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 84 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 v14.5.1 This information does not constitute any warranty of energy cost or savings. © 1985-2014 Architectural Energy Corporation, Boulder, Colorado. HERS Confirmed 12/21/14 Rating No:HERS-326 Rater ID:1497133 Duct Leakage Ventilation Blower Door Test Heating Cooling Natural ACH 0.12 0.09 Leakage to Outside Units ducts ductless Mechanical Balanced ACH @ 50 Pascals 2.03 2.03 CFM @ 25 Pascals 24 0 Sensible Recovery Eff. (%)71.0 CFM @ 25 Pascals 437 437 CFM25 / CFMfan 0.0205 0.0000 Total Recovery Eff. (%)45.0 CFM @ 50 Pascals 685 685 CFM25 / CFA 0.0160 0.0000 Rate (cfm)47 Eff. Leakage Area (sq.in)37.6 37.6 CFM per Std 152 N/A N/A Hours/Day 24.0 Specific Leakage Area 0.00013 0.00013 CFM per Std 152 / CFA N/A N/A Fan Watts 56.0 ELA/100 sf shell (sq.in)0.69 0.69 CFM @ 50 Pascals 38 0 Cooling Ventilation Natural Ventilation Eff. Leakage Area (sq.in)2.07 0.00 Thermal Efficiency N/A N/A Total Duct Leakage Units CFM25/CFA CFM25/CFA Total Duct Leakage 0.2933 0.0000