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Zone Zero Gutters, Eaves & Roof Requirements

Phase 1 of California's Zone Zero regulations requires clearing all combustible debris from gutters, eaves, and roof surfaces. Ember accumulation in these areas is one of the leading causes of structure ignition during wildfires.

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Clear gutters and roof surfaces

All leaf litter, pine needles, dead branches, and combustible debris must be removed from gutters, valleys, and flat roof areas. This includes debris accumulated on top of gutters and in any roof penetrations.

Eave and soffit clearance required

Combustible material stored or hanging under eaves must be removed. Open eaves (unenclosed soffits) present a significant ember entry risk and should be enclosed or covered with ember-resistant material.

Phase 1: three years after the effective date

Gutter and roof clearing is a Phase 1 requirement, due three years after the effective date. No statewide effective date exists yet — the package is in OAL review. Ongoing maintenance is required, not a one-time task.

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What Zone Zero requires for gutters and eaves

Gutters and eaves are primary ember collection points. The August 19, 2026 Board of Forestry final draft (approved 8–0; not yet law) requires all combustible material to be cleared from these areas and recommends ongoing maintenance as a compliance obligation.

Embers from wildfires can travel miles ahead of the fire front and accumulate in gutters, roof valleys, and eave areas. A small accumulation of dry debris in a gutter can ignite from a single ember and burn through the soffit into the attic, causing total structure loss even when the fire front never reached the home.

Ember-resistant gutter guards with openings no larger than 1/8 inch can significantly reduce debris accumulation and are strongly recommended. While not explicitly required under the August 19, 2026 final draft, they may be required by local AHJs and are the most cost-effective long-term compliance strategy.

Open eaves present a direct ember entry pathway into the attic and wall cavities. Enclosing open eaves with ignition-resistant materials like fiber cement, metal, or fire-rated wood eliminates one of the most common ignition pathways. This may be addressed under Phase 2 requirements depending on your local AHJ.

Gutters, Eaves, and Roof: Frequently Asked Questions

Common questions about Zone Zero gutter and roof compliance, answered clearly.

How often do I need to clean my gutters under Zone Zero?

The August 19, 2026 final draft frames gutter clearing as an ongoing compliance obligation, not a one-time event. In fire-prone areas, industry best practice is to clean gutters at minimum twice per year: once in late spring after pollen season and once in late fall after leaf drop. During high-wind events, inspect immediately after.

Do gutter guards satisfy the Zone Zero requirement?

Ember-resistant gutter guards with openings no larger than 1/8 inch can significantly reduce debris accumulation and are strongly recommended. They are not explicitly listed as a requirement in the August 19, 2026 final draft, but local AHJs may require them. They remain the most cost-effective long-term solution.

What about a metal roof? Am I still required to clear debris?

Yes. Even with a non-combustible metal roof, debris accumulation in valleys, around skylights, and at roof-wall junctions creates ignition risk. Zone Zero requires clearing regardless of roofing material. The roof surface itself may comply, but accumulated debris does not.

Are open eaves (exposed rafter tails) a violation?

Open eaves are a significant ember entry risk. The August 19, 2026 final draft addresses the under-eave safety zone in Phase 2 requirements. Some local AHJs may require enclosure of open eaves as a Phase 2 compliance action. Enclosing open eaves with ignition-resistant materials is strongly recommended regardless of specific requirements.

Can I do gutter cleaning myself or do I need a contractor?

Gutter cleaning can be done by homeowners. For two-story or steep-roof homes, a licensed gutter cleaning service is recommended for safety. For gutter guard installation or eave enclosure, a licensed contractor is required. A Zone Zero contractor can assess your entire roof perimeter and identify all compliance gaps.

When is the Phase 1 deadline for gutter and roof compliance?

Phase 1 is required within three years of the effective date. No statewide effective date exists yet — the package is in OAL review. New construction must comply on the effective date. Because gutter clearing is an ongoing obligation, starting now simply means maintaining good practice going forward.

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Do not leave this page without a next step.

The Board approved the final draft August 19, 2026. It is not yet law. Check your parcel, grab the checklist, or match with a licensed local contractor.

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Phase 1: Gutters, Eaves, and Roof

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Phase 1 deadlines are approaching. A licensed local contractor can inspect your gutters, eaves, and roof perimeter, identify all Zone Zero compliance gaps, and recommend the most cost-effective solutions.

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