During the air tightness test, where should the majority of pressure taps be located?

The correct answer is that the majority of pressure taps should be located at ground level or around the perimeter. This positioning is essential because it allows for the most accurate assessment of the building's air tightness.

Placing pressure taps at ground level provides a clear representation of how air enters or escapes from the building, which is crucial for understanding the overall performance of the building envelope. The perimeter is also particularly important as it encompasses the various components that could contribute to leaks, such as doors, windows, and joints. By measuring pressure differentials in these areas, testers can identify specific locations where air leakage might occur, facilitating targeted remediation efforts.

Understanding where to place the pressure taps is vital for ensuring reliable and useful test results. This strategic placement maximizes the ability to detect and quantify air infiltration, which is critical for enhancing energy efficiency and ensuring indoor air quality in buildings.