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1 Mark Warner Air Leakage REM ReportAIR LEAKAGE REPORT Date:November 21, 2011Rating No.:CET Building Name:Bear Hill unit 1 Rating Org.:CET Owner's Name:Phone No.:413-586-7350 Property: 1 Mark Warner DriveRater's Name:Josy Taylor Raycroft Address:Northampton, MA 01060Rater's No.: Builder's Name:Saloomey Construction Weather Site:Northampton, MARating Type:Confirmed Rating File Name: Bear Hill unit 1 FINAL .blgRating Date:11/11/11 REM/Rate - Residential Energy Analysis and Rating Software v12.96 This information does not constitute any warranty of energy cost or savings. © 1985-2011 Architectural Energy Corporation, Boulder, Colorado. Whole House Infiltration Blower door test Heating Cooling Natural ACH:0.17 0.12 ACH @ 50 Pascals:2.37 2.37 CFM @ 25 Pascals:911 911 CFM @ 50 Pascals:1430 1430 Eff. Leakage Area: [sq.in]78.5 78.5 Specific Leakage Area:0.00021 0.00021 ELA/100 sf shell: [sq.in]1.28 1.28 Duct Leakage Leakage to Outside Units ducts CFM @ 25 Pascals:105 CFM25 / CFMfan:0.0527 CFM25 / CFA:0.0401 CFM per Std 152:N/A CFM per Std 152 / CFA:N/A CFM @ 50 Pascals:165 Eff. Leakage Area: [sq.in]9.05 Thermal Efficiency:N/A Total Duct Leakage Units CFM25 Total Duct Leakage:250.00 Ventilation Mechanical:Exhaust Only Sensible Recovery Eff. (%):0.0 Total Recovery Eff. (%):0.0 Rate (cfm):57 Hours/Day:24.0 Fan Watts:23.0 Cooling Ventilation:Natural Ventilation 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 56 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 112 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.