Air leakage is a crucial aspect of building performance, affecting energy efficiency, comfort, and indoor air quality. Measuring and controlling air leakage through proper air sealing techniques is essential in achieving a healthier and more efficient building. Following code requirements, such as blower door testing, can help ensure compliance and identify areas for improvement. By focusing on continuity, using quality materials like zip sheathing, Siga Meyerriecks, and robust tape, and integrating air barrier systems effectively, builders can achieve lower ACH numbers and create a more comfortable, energy-efficient living environment for their clients. Through conscientious building practices, achieving air leakage rates below 150 ACH 50 is attainable and beneficial for both builders and occupants. Together, we can build healthier, more efficient homes. Watch this episode with Jake Bruton from Arrow Building and his special guest Randy Williams from NorthernBuiltPro.