Wildfire-Rated Class A Roofing and Title 24 Rules in San Jose, CA
Many San Jose homes, especially those near hillside open space, need a Class A fire-rated roof assembly, and re-roofs are often also subject to California Title 24 cool-roof requirements. Understanding both rules upfront can prevent costly surprises during permitting.
By Jason Green · Roofing & Gutters · Published January 26, 2026 · 9 min read
What Class A fire rating means
A Class A rating is the highest fire-resistance classification for roof coverings under the building code, indicating the assembly resists severe fire exposure. Most standard composition shingle and tile roofing products achieve Class A when installed with the correct underlayment and fire-rated decking.
Homes near the wildland-urban interface in the hills east of San Jose are especially likely to need Class A assemblies, and insurers increasingly ask about roof rating when underwriting policies in these areas.
How San Jose enforces fire-rated roofing
The City of San Jose reviews roofing permits against California Building Code fire safety requirements, and inspectors check that installed materials match the rated assembly listed in the permit application.
Homeowners replacing a roof should confirm with their contractor which specific product and underlayment combination is being installed and that it carries a current Class A listing, since substituting materials can void the rating.
Title 24 cool-roof requirements
California Title 24 energy code sets reflectivity and emissivity standards for roofing on many residential re-roofs, intended to reduce cooling loads and urban heat. The specific requirements depend on roof slope and the scope of the re-roofing project.
Cool-roof compliant products are widely available in both shingle and tile lines, so meeting Title 24 rarely limits material choice, but it does narrow which specific product lines a contractor can install.
Combining fire and energy requirements
A well-informed roofer will select a product that satisfies both the Class A fire rating and Title 24 reflectivity standards simultaneously, since many manufacturers now design product lines to meet both.
Ask for the manufacturer product data sheet showing both the fire rating and the solar reflectance index before signing a contract, rather than taking a verbal assurance.
Working with a qualified contractor
Confirm your roofer holds an active CSLB C-39 license and has experience with fire-rated and Title 24 compliant installations, since not every crew is equally familiar with the documentation requirements.
Our San Jose roofing page has current cost ranges and can connect you with contractors experienced in fire-rated roofing for hillside and wildland-adjacent properties.
Typical cost ranges
| Class A rated composition shingle (per square, installed) | $450 - $700 |
| Class A rated concrete tile (per square, installed) | $700 - $1,100 |
| Title 24 compliant underlayment upgrade | $500 - $1,500 |
| Fire-rated vent and eave upgrades | $800 - $2,500 |
Ranges are general estimates gathered from homeowner-reported quotes, not an offer or a quote for your project.
Common questions
Do all San Jose homes need a Class A roof?
Not all, but homes in or near wildland-urban interface areas, particularly in the eastern hills, are the most likely to require Class A rated assemblies.
What is Title 24 and does it apply to roofing?
Title 24 is California building energy code, and it includes cool-roof reflectivity requirements that apply to many residential re-roofing projects.
Can I choose any roofing material and still meet these rules?
Most modern composition shingle and tile product lines can meet both Class A fire rating and Title 24 requirements, but the specific product must be verified against manufacturer data.
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