What is the recommended order for prioritizing air sealing?

The recommended order for prioritizing air sealing is based on the principle that the most significant air leaks should be addressed first to improve energy efficiency and indoor air quality. Starting with the garage and moving to the attic means focusing on areas that can significantly impact the building’s performance.

Sealing the garage is crucial because it can lead to the infiltration of unconditioned air from the outside, which can introduce pollutants and moisture into the living spaces. Following this, the attic is prioritized because it is another common area for air leakage, where conditioned air can escape, and unconditioned air can enter, affecting temperature regulation and increasing energy costs.

Next, addressing the basement is important because it can also be a source of air leakage, especially if it’s conditioned space or being used as living space.

Cantilever floors and band joists are considered next as they are often overlooked areas that can contribute to air leakage. Finally, air sealing in the interior living spaces ensures comfort and efficiency, rounding out a comprehensive approach to air sealing.

This hierarchy ensures the most impactful areas are sealed effectively first, thereby optimizing overall building performance and occupant comfort.