Static Pressure Testing
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Static pressure testing measures the resistance within your HVAC system, revealing whether fans, filters, ductwork, and dampers are performing to design specification. It's a critical diagnostic tool for identifying why ventilation systems underperform.
What Static Pressure Reveals
Elevated static pressure indicates increased resistance in the system — typically caused by blocked filters, contaminated coils, collapsed duct sections, or closed dampers. Low pressure may indicate fan degradation or ductwork leaks.
- Filter condition and replacement timing
- Fan performance degradation
- Ductwork blockages or damage
- Damper position and operation
- System capacity vs. design specification
When to Test
Static pressure testing should be part of routine HVAC maintenance, conducted when investigating poor ventilation performance, following system modifications, or as part of building commissioning and handover.
Frequently Asked Questions
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