Airtightness Testing Airtightness testing of homes has been around for more than 20 years. Various energy programs and uctuating energy bills have provided homeowners an incentive to improve the airtightness of their homes. Energy tax credits can also be received by the homeowner but only if the house airtightness has been veri ed that it is less leaky after remodeling than before. E orts to make commercial buildings more energy e cient in the US has only recently been incorporated into various “green” initiatives. Tests of commercial buildings show that they tend to be more leaky than the average house, based on air leakage per square foot of surface area. at means that commercial buildings are less energy e cient than the average house. To measure the actual airtightness of a large building means more air is needed to maintain a reasonable test pressure. e Energy Conservatory, a leader in airtightness testing, has kits available to directly measure more than 18,000 cubic feet per minute of air leakage. Multiple kits and fans can be used simultaneously to generate Not Just for Homes Anymore more air for accurate and reliable measurements of air leakage for testing before and after retro tting. For more information on multi-fan systems, contact: e Energy Conservatory 612-827-1117 or visit our website at www.energyconservatory.com Where’s the Leak? What’s the best way to: measure the airtightness level of building envelopes; diagnose and demonstrate air leakage problems; estimate The Minneapolis Blower Door Minneapolis Blower Door™ the best designed and supported airtightness Minneapolis Blower Door FEATURES: Precision Engineered, Calibrated Fan Accurate, Powerful 2 Channel Digital Pressure and Flow Gauge Lightweight, Durable Aluminum Door Frame and Fabric Panel Download product pdfs at www.energyconservatory.com Contact us at 612.827.1117 Diagnostic Tools to Measure Building Performance www.info.hotims.com/41646-50