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38C-057 14-023 AirLeakage
Air Leakage Property Kopf Residence 20 Stearns Court Northampton, MA 01060 Weather:Northampton, MA 20 Stearns Court 14-023 20 Stearns Ct Northampton final.blg Organization Center for EcoTechnology 413-586-7350 x227 John Saveson Builder Kent Hicks Construction Co. 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 54 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 109 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 This information does not constitute any warranty of energy cost or savings. © 1985-2014 Architectural Energy Corporation, Boulder, Colorado. HERS Confirmed 9/16/14 Rating No:14-023 Rater ID:1911963 Duct Leakage Ventilation Blower Door Test Heating Cooling Natural ACH 0.05 0.04 Leakage to Outside Units Left upstairs Right upstairs Left 1st flr Right 1st flr Mechanical Balanced ACH @ 50 Pascals 0.87 0.87 CFM @ 25 Pascals 4 3 0 0 Sensible Recovery Eff. (%)78.0 CFM @ 25 Pascals 261 261 CFM25 / CFMfan 0.0035 0.0026 0.0000 0.0000 Total Recovery Eff. (%)62.0 CFM @ 50 Pascals 409 409 CFM25 / CFA 0.0066 0.0050 0.0000 0.0000 Rate (cfm)65 Eff. Leakage Area (sq.in)22.5 22.5 CFM per Std 152 N/A N/A N/A N/A Hours/Day 24.0 Specific Leakage Area 0.00006 0.00006 CFM per Std 152 / CFA N/A N/A N/A N/A Fan Watts 24.0 ELA/100 sf shell (sq.in)0.33 0.33 CFM @ 50 Pascals 6 5 0 0 Cooling Ventilation Natural Ventilation Eff. Leakage Area (sq.in)0.34 0.26 0.00 0.00 Thermal Efficiency N/A N/A N/A N/A Total Duct Leakage Units CFM25/CFA CFM25/CFA CFM25/CFA CFM25/CFA Total Duct Leakage 0.0461 0.0380 0.0000 0.0000