Planning a new roof in Capitola? Title 24 is California’s energy code, and it decides which materials your permit will approve. Here is the part most homeowners get wrong, though: the cool roof rule does not apply the same way everywhere in California. Capitola sits in Climate Zone 3, and that zone follows different rules than San Jose or Fresno.
California’s updated Energy Code also took effect on January 1, 2026. So if a neighbor or a contractor told you something a year ago, part of that advice is already outdated. Below, you will find what actually applies to your home and how to keep your permit moving.
What Title 24 Actually Covers
Title 24, Part 6 is California’s Building Energy Efficiency Standards, and it applies to your roof once you replace, recover, or recoat more than half of the roof area. Small patch repairs and spot fixes do not trigger it.
When it does apply, your permit covers three things:
- Material Values: Solar reflectance and thermal emittance minimums, but only in certain climate zones.
- Attic Work: Insulation upgrades and radiant barriers when the deck gets exposed.
- Paperwork: A signed CF1R Certificate of Compliance that your building department reviews.
The current rules come from the 2025 Energy Code, which the Cool Roof Rating Council confirms took effect January 1, 2026. Any permit you pull this year follows the newer standard. A full roof replacement is the most common project that triggers it.
Which Capitola Roofs Need a Cool Roof
Most Capitola homes do not need a cool roof. The prescriptive requirement is tied to climate zone and roof slope, and Capitola’s zone is not on either list.
| Project Type | Climate Zones Where a Cool Roof Is Required | Minimum Values |
| Steep-slope re-roof (2:12 pitch or steeper) | Zones 4 and 8 through 15 | 0.20 aged reflectance, 0.75 emittance, or SRI 16 |
| Low-slope re-roof (flatter than 2:12) | Zones 4 and 6 through 15 | 0.63 aged reflectance, 0.75 emittance, or SRI 75 |
Source: Cool Roof Rating Council summary of the 2025 California Energy Code, Section 150.2(b)1I.
Here is why that matters to you. Capitola, along with Santa Cruz, Aptos, Soquel, and Live Oak, sits in Climate Zone 3. Neither row above includes Zone 3, so a standard asphalt shingle still passes.
Cross the hill, however, and the answer flips. San Jose, Los Gatos, Campbell, Saratoga, and Sunnyvale all sit in Climate Zone 4, which appears on both lists. If you own property in both counties, do not assume the same material works for each one.
What Still Applies to Every Capitola Re-Roof
Your permit still checks several items even when no cool roof is required. Skipping any of them can stall your final inspection.
- A CF1R Certificate of Compliance, completed and signed by your contractor
- Attic insulation brought up to current minimums if the deck is opened and existing insulation falls short
- A radiant barrier where your project scope calls for one
- CRRC rating and labeling on any product used to claim compliance credit
- A Class A fire-rated assembly if your address falls in a mapped Fire Hazard Severity Zone, which affects many homes up in the Santa Cruz Mountains
A professional roof inspection answers most of these before you order a single bundle. It also tells you whether your deck can carry heavier materials like tile. On top of that, coastal homes carry their own wear patterns, which we covered in our guide to coastal roofing challenges in Capitola.
Why a Cool Roof Can Still Be Worth It
Not required does not mean not useful. According to the U.S. Department of Energy, a conventional roof can hit 150°F on a sunny summer afternoon, while a reflective roof under the same sun stays more than 50°F cooler.
That said, be realistic about the payoff here. Capitola’s marine layer keeps cooling loads low, so your energy savings will be modest compared to an inland home in Fresno or Palm Springs. The bigger win on the coast is material life, since a cooler surface goes through less daily heat cycling and less UV stress.
One more reason to think it through now: if solar panels are anywhere in your five-year plan, the roof underneath them should be sorted first. Our post on replacing your roof before solar installation walks through the timing.
How to Keep Your Project on Schedule
Follow this order, and you will avoid the delays that catch most homeowners off guard.
- Confirm your climate zone and roof slope. Your address decides which rules apply, so start here.
- Get an inspection. This tells you whether you need a replacement or a targeted roof repair, and whether your deck needs reinforcement.
- Measure your scope. Anything over 50% of the roof area counts as an alteration under Title 24.
- Verify materials. If compliance values apply, check the product against the CRRC Rated Products Directory before ordering.
- Check with your building department. Capitola, Santa Cruz County, and Santa Clara County each handle permit review a little differently.
- Book a crew that handles the CF1R. Your contractor should complete that paperwork, not you.
FAQs About Roof Replacement
1. Does every roof repair have to meet Title 24?
No. The rules kick in once you replace, recover, or recoat more than 50% of your roof. Small patches and spot repairs fall outside that threshold.
2. Do I need a cool roof for my Capitola home?
Usually not. Capitola is in Climate Zone 3, which is not on the prescriptive cool roof list for single-family steep-slope or low-slope re-roofs. Your contractor should still confirm the details for your specific roof.
3. What is a CRRC rating?
It is a third-party certification of a roofing product’s solar reflectance and thermal emittance. Building departments use it to verify compliance when cool roof values apply to your project.
4. What changed in the 2026 code?
The 2025 Energy Code replaced the 2022 cycle on January 1, 2026. It updated how SRI gets calculated and tightened several multifamily requirements. Permits filed before that date follow the older rules.
5. Can I still pick the roof color I want?
Yes. In Climate Zone 3, you have full freedom on standard materials. Even where cool roof values apply, rated products now come in darker colors that look like traditional shingles.
Get Clear Answers Before You Order Materials
You should not have to decode state energy code on your own. Call Redwood Roofing at (831) 888-7790, and we will confirm which rules apply to your address, inspect your current roof, and handle the compliance paperwork from start to finish. Free estimates, no pressure.