Barometric dampers are often found to be operational during an inspection.

Barometric dampers are designed to regulate airflow in ventilation systems, typically to prevent backdrafts and ensure proper operation of appliances such as furnaces or water heaters. During an inspection, it is more common to find that these dampers are malfunctioning or improperly set rather than fully operational.

In many cases, factors such as lack of maintenance, improper installation, or even natural wear over time can lead them to be stuck, blocked, or positioned incorrectly, rendering them ineffective. An inspector might encounter debris or rust that inhibits the damper from moving freely. Therefore, it can be concluded that it's not typical for barometric dampers to be operational during inspections, supporting the assertion that they are often found in a non-functional state.