Which statement is true regarding duct leakage tests?

Duct leakage tests are a critical component in ensuring that HVAC systems operate efficiently and effectively. The correct statement regarding duct leakage tests is that they are required. This requirement stems from various building codes and standards, which mandate that these tests be conducted to verify that the duct systems do not allow excessive air loss.

The rationale behind this requirement is rooted in energy efficiency and comfort. Duct leakage can lead to significant energy wastage and can adversely affect indoor air quality. By ensuring that duct systems are properly sealed and tested, building owners and operators can significantly reduce energy costs and enhance the performance of heating and cooling systems.

In many jurisdictions, building codes require duct leakage testing as part of the inspection process for both new construction and renovations. This ensures that all HVAC systems meet specified standards and promote optimal performance regardless of whether they are in new installations or existing setups, thereby highlighting the necessity of such tests beyond optional status.