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i <br /> AIR LEAKAGE TEST RESULTS <br /> Date of Test: 1/12/16 Test File:wooddale 2450 Cobblestone Ct <br /> Test Performed For: Wooddale Builders <br /> Minnetonka, <br /> Phone <br /> Test Results <br /> 1. Measured Leakage: 46 sq. in. (1048 CFM @ 50 Pa) <br /> This leakage area represents the cumulative size of all holes and cracks in the exterior of your house through <br /> which unconditioned outside air enters your home and conditioned air escapes. <br /> 2. Est.Annual Air Change Rate: 0.10 air changes/hour(15.5 CFM/person)* <br /> 3. Est. Cost of Air Leakage $73 per year(heating and cooling)'` <br /> Ventilation Guideline <br /> ASHRAE Standard 62.2 recommends minimum ventilation requirements for residential buildings <br /> to maintain acceptable indoor air quality. Based on the results of this airtightness test, Standard 62.2 <br /> recommends that a whole building mechanical ventilation rate of 68 CFM be continuously provided in this <br /> building. `� <br /> Additional Information <br /> _ <br /> If some of the house leakage is located in the forced air duct system, both the leakage rate and energy costs will <br /> tend to be higher than reported above. Duct leaks result in much greater air leakage because they are subjected <br /> to much higher pressures than typical house leaks. Duct leaks can also seriously degrade indoor air quality. <br /> Many factors contribute to indoor air quality including ventilation rates, sources and locations of pollutants, proper <br /> operativn of combustion appliances and occupant behavioc Additional testing is needed to fully evaluate the air <br /> quality in your house. <br /> #The estimated annual air change rate is based on ASHRAE Standard 136-93 and assumes no mechanical <br /> ventilation. Actual air change rates and costs may differ from these estimates by a factor of 2 or more. <br /> **ASHRAE Standard 62.2 also contains requirements for local kitchen and bathroom mechanical exhaust <br /> systems. These local exhaust systems may be incorporated into a whole building ventilation strategy. Consult <br /> Standard 62.2 for more information on ventilation strategies and specific requirements and exceptions contained in <br /> the Standard. <br />