Cool Roof Requirements: Bonsall vs San Diego
How do cool roof requirements rules compare between Bonsall, CA and San Diego, CA?
Bonsall, CA
San Diego County
No data available yet for Bonsall.
San Diego, CA
San Diego County
California Title 24 Part 6 prescribes minimum solar reflectance and thermal emittance for new and replacement roofs. San Diego's Building Electrification Reach Code and SDMC Chapter 14 enforce these performance standards through permit inspections.
View full San Diego rules →Key Facts Comparison
| Fact | Bonsall | San Diego |
|---|---|---|
| State rule | - | Title 24 Part 6 §110.8 |
| Climate zones | - | CEC 7 and 10 in SD |
| Trigger | - | 50%+ roof area replacement |
| Listing | - | Cool Roof Rating Council |
| Inspector | - | Development Services Dept. |
Highlighted rows indicate differences between cities.
Bonsall FAQ
No FAQs available.
San Diego FAQ
Does my new asphalt-shingle roof need to be cool?
Steep-slope residential roofs in San Diego climate zones must meet aged reflectance of 0.20 or higher under Title 24 Part 6, achievable with most cool-shingle product lines. Always check the CRRC label before purchase.
Can I get a permit waiver?
Limited exceptions exist for re-roofs covering under 50 percent of the roof, slopes greater than 2:12 with specific tile and metal product paths, and historic structures with preservation review approval through Development Services.
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