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13-343 Village Hill Flats West Unit W2-s FINAL AirLeakageAir Leakage Property 74 Village Hill - W2s Northampton, MA 01060 Weather:Northampton, MA Unit W2-s 13-343 Village Hill Flats West Unit W2-s FINAL.blg Organization Center for EcoTechnology 413-586-7350 Mark Newey Builder Wright Builders Whole House Infiltration ASHRAE 62.2 - Ventilation Requirements The ASHRAE 62.2 flow rates shown above are the CONTINUOUS mechanical fresh air ventilation which will meet the 'whole-building' requirement under that version of the standard. Both values incorporate any appropriate 'infiltration credit'. Intermittent mechanical ventilation may be used if the flow rate is adjusted accordingly. For example, the runtime can be reduced to 12 hours per day using a doubled flow rate, as long as the system provides ventilation at least once every 3 hours. For more detail, refer to the appropriate standard. REM/Rate - Residential Energy Analysis and Rating Software v14.6.1 This information does not constitute any warranty of energy cost or savings. © 1985-2015 Noresco, Boulder, Colorado. HERS Confirmed 6/26/15 Rating No:13-343-W2-s Rater ID:9271016 Duct Leakage Ventilation Blower Door Test Heating Cooling Natural ACH 0.29 0.22 ACH @ 50 Pascals 6.37 6.37 CFM @ 25 Pascals 929 929 CFM @ 50 Pascals 1457 1457 Eff. Leakage Area (sq.in) 80.0 80.0 Specific Leakage Area 0.00036 0.00036 ELA/100 sf shell (sq.in) 1.77 1.77 Leakage to Outside Units CFM @ 25 Pascals CFM25 / CFMfan CFM25 / CFA CFM per Std 152 CFM per Std 152 / CFA CFM @ 50 Pascals Eff. Leakage Area (sq.in) Thermal Efficiency Total Duct Leakage Units Total Duct Leakage Mechanical Balanced ASHRAE Sensible Recovery Eff. (%) 75.0 62.2-2010 Total Recovery Eff. (%) 1.0 Rate (cfm)63 45 Hours/Day 24.0 24.0 Fan Watts 24.0 Cooling Ventilation Natural Ventilation