Title 24 & San Diego Home Energy Code: Where Window Film Fits
Key Takeaway
California Title 24 Part 6 sets the building energy efficiency standards enforced by the California Energy Commission and Building Standards Commission. Residential window film with NFRC-certified solar heat gain coefficient ratings can satisfy prescriptive retrofit requirements in San Diego climate zone 7 and 10.
California's Title 24 is the strictest building energy code in the U.S. Window film fits cleanly within it as a prescriptive retrofit measure — here's the regulatory map.
Code & Regulatory Sources
- CEC — Title 24 Part 6.
- California Building Standards Commission.
- City of San Diego — Development Services.
- SDG&E Rebates.
- NFRC — film performance ratings.
- USGBC — LEED.
- Energy Star — Window Films.
Compliant Installations
See our residential window tint service and the SDG&E rebate guide.
Frequently Asked Questions
What is Title 24?
Title 24 is California's Building Standards Code. Part 6 covers building energy efficiency. Read it at energy.ca.gov.
Does San Diego enforce Title 24?
Yes. The City of San Diego Development Services Department enforces Title 24 for permitted retrofits and new construction.
Do I need a permit to install window film?
In most cases, no — film is a non-structural retrofit. Confirm via sandiego.gov/development-services if combined with other work.
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