Energy Code Compliance for Northern California

Residential & Low Rise Multi-Family

Pressurization test verifying total duct leakage and leakage to outside are within Title 24 limits. Poorly sealed ducts in a hot attic can cut cooling capacity by 20–30%.
Staged inspection verifying the air barrier and insulation meet every applicable QII requirement. Enclosed cavities are verified before cover; blown ceiling insulation is verified after ceiling drywall where used.
Field test confirming the AC system's refrigerant charge is within manufacturer spec. An overcharged or undercharged system loses efficiency and compressor life.
Room-by-room airflow measurements confirming the HVAC system delivers the design CFM to each conditioned space. Poor airflow means uneven temperatures and reduced efficiency.
Required when the Title 24 used a reduced infiltration credit. Tests whole-house air tightness. Many builders are unaware this test is required until the rater arrives.
Diagnostic procedure that measures how much conditioned air escapes from a building's duct system directly to the outdoors or unconditioned spaces
Confirms installed equipment brand, model, and rated efficiency match the CF-1R. A mismatch requires a Title 24 revision before the permit closes.