A systematic method, frequently documented in portable document format (PDF), outlines the steps necessary to assess the air tightness of ductwork systems. These systems are typically employed in heating, ventilation, and air conditioning (HVAC) applications within residential, commercial, and industrial buildings. The documented process details the preparation, execution, and analysis of data obtained during the evaluation. For example, such a document might specify how to seal vents and registers before pressurizing the duct system with a calibrated fan.
The significance of these documented procedures lies in their ability to promote energy efficiency, improve indoor air quality, and reduce operational costs. By identifying and quantifying air leaks within the ductwork, building owners and HVAC professionals can implement targeted repairs. Historically, rudimentary methods were used to detect duct leaks, often relying on visual inspection or feel. Standardized, documented test procedures provide a more accurate and consistent approach, facilitating comparison between different systems and allowing for verification of performance against building codes and standards.