Air Tightness Testing Blower Door Verification for Residential Projects
Tacoma Energy provides air tightness testing to measure enclosure performance, document compliance, and help builders identify air-leakage concerns before project closeout. Testing results are coordinated with applicable energy-code, certification, program, and project requirements.
Measured Performance
Blower door testing provides a measurable result for whole-building air leakage rather than relying on visual assumptions alone.
Compliance Documentation
Results can support energy-code compliance, ERI programs, certifications, builder standards, and final project documentation.
Construction Quality
Testing helps identify whether enclosure performance aligns with the project target and whether corrective work may be needed.
How Blower Door Testing Measures Air Leakage
A calibrated fan creates a controlled pressure difference across the building enclosure. The resulting measurement shows how much air moves through unintended openings in the home.
Blower Door Testing
The calibrated fan changes the pressure inside the home so air movement through the enclosure can be measured using standardized testing equipment.
Common Air-Leakage Pathways
Leakage can occur through connections and penetrations at walls, ceilings, floors, windows, doors, attic access points, plumbing, electrical components, and mechanical systems.
Testing Applications
Testing scope and timing are coordinated around the project’s construction stage and compliance requirements.
Coordinated Testing Process
Tacoma Energy coordinates scheduling, field testing, measured results, and documentation through one accountable workflow.