Properly sealed ductwork is crucial for several reasons:

1. Energy savings: Leaky ducts can result in significant energy loss, as conditioned air escapes into unconditioned spaces such as attics, crawl spaces, or walls. By sealing ducts, homeowners and building owners can reduce energy consumption and lower utility bills.

2. Improved indoor air quality: Leaky ducts can allow dust, allergens, and pollutants to enter the duct system, circulating them throughout the home or building. By sealing ducts, the infiltration of these contaminants can be minimized, resulting in improved indoor air quality and a healthier living or working environment.

3. Enhanced comfort: Leaky ducts can lead to uneven heating or cooling, with certain areas of a home or building being too hot or too cold. By sealing ducts, conditioned air can be evenly distributed, ensuring consistent comfort throughout the space.

4. Compliance with energy efficiency standards: Meeting Energy Star's duct seal requirements is not only beneficial for energy savings and comfort but also essential for obtaining Energy Star certification. This certification demonstrates a commitment to energy efficiency and can increase the value and marketability of a home or building.