Importance of Duct Leakage Testing

This method involves using a calibrated fan to

pressurize the duct system. The airflow through the fan is measured at a

standard pressure (typically 25 Pascals). The amount of air that leaks out of the

duct system is quantified, providing an estimate of duct leakage.

Similar to the pressurization test, this method seals all

registers and uses a fan to create a pressure difference, allowing for the

detection of leaks throughout the ductwork.

While not as precise, a thorough visual inspection can help

identify obvious leaks, such as loose connections or damaged ductwork.

This device typically includes a calibrated fan and

pressure measurement tools to assess duct airtightness. It helps determine how

much air is escaping from the duct system.

Adhesive tapes, mastic sealants, or specialized duct sealing

products are used to repair identified leaks.