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33 Olander Final Air Leakage ReportAIR LEAKAGE REPORT Date:December 09, 2011Rating No.:11-058 Building Name:33 Olander - Rating Org.:CET Owner's Name:Wright Builders Phone No.: Property: 33 Olander Dr Rater's Name:Josy Raycroft Address:Northampton, MA 01060Rater's No.: Builder's Name:Wright builders, inc. Weather Site:Northampton, MARating Type:Confirmed Rating File Name: 11-178 33 Olander - Village Hill FINAL.blgRating Date:12/9/11 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:0.08 0.06 ACH @ 50 Pascals:1.34 1.34 CFM @ 25 Pascals:287 287 CFM @ 50 Pascals:450 450 Eff. Leakage Area: [sq.in]24.7 24.7 Specific Leakage Area:0.00010 0.00010 ELA/100 sf shell: [sq.in]0.51 0.51 Duct Leakage Leakage to Outside Units CFM @ 25 Pascals:0 CFM25 / CFMfan:0.0000 CFM25 / CFA:0.0000 CFM per Std 152:N/A CFM per Std 152 / CFA:N/A CFM @ 50 Pascals:0 Eff. Leakage Area: [sq.in]0.00 Thermal Efficiency:N/A Total Duct Leakage Units CFM25 Total Duct Leakage:113.00 Ventilation Mechanical:Balanced Sensible Recovery Eff. (%):70.0 Total Recovery Eff. (%):69.0 Rate (cfm):46 Hours/Day:24.0 Fan Watts:45.0 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 46 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 93 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.