Class A Fire-Rated Roofs for WUI Zones in Sonoma & Marin

Whether your home is in a WUI zone is a public record. CAL FIRE publishes maps for State Responsibility Areas, and local jurisdictions publish Very High Fire Hazard Severity Zone maps for Local Responsibility Areas. In practice for our service area: - Marin County: Most of unincorporated west Marin (Inverness, Point Reyes Station, Bolinas, Stinson Beach), much of Mill Valley, the hillsides of San Anselmo, Ross, Kentfield, Fairfax, Tiburon, Sausalito, and large portions of Novato. If you're on a hillside in Marin, assume WUI. - Sonoma County: Most rural areas, the Sonoma Valley east side, hill country in Glen Ellen, Kenwood, west Sebastopol, and portions of Petaluma's outskirts. The 2017 and 2020 fires brought WUI mapping into sharper focus across Sonoma. - East Bay edges we serve: Hills above Berkeley (including Kensington) are WUI. When you pull a roof replacement permit, the jurisdiction will verify fire-zone status and require documentation that the proposed system is Class A. The contractor's quote should name the listed assembly — not just "Class A shingle."

Common pitfalls in WUI re-roofing: - Quoting a "Class A shingle" without the rated assembly. A shingle's fire rating depends on the underlayment and deck spec it was tested with. A Class A shingle installed over an unlisted underlayment is no longer a Class A assembly. Demand the listing. - Wood shake / shingle as a "Class A treated" system. Fire-retardant treated wood shakes exist but require ongoing re-treatment and are not widely accepted by Marin and Sonoma insurers in WUI zones. Most clients moving from wood shake go to SBS shingle, tile, or metal. - Eaves, vents, and gutter screens not addressed. Ember entry doesn't stop at the roof — the assembly is only one part of the fire-hardening picture. Boxed eaves, fine-mesh attic vents (1/8" max), and ember-resistant gutter screens are typically required by jurisdiction. We coordinate these with the homeowner. - Overlay attempts in WUI zones. Most WUI jurisdictions require tear-off (full deck inspection) for re-roof permits. Overlay over an existing roof in a WUI zone is rarely permitted. - Skipping the new ice & water shield at valleys and penetrations. The Class A assembly requires consistent underlayment performance. Saving on shield material voids the listing. - Insurance non-renewal as a surprise. Several major California carriers are non-renewing in WUI without a recent Class A re-roof. The non-renewal letter forces the replacement timeline.

Northern Pacific is GAF Master Elite and Malarkey Emerald Certified. We default to two Class A assemblies on WUI work: - Malarkey Vista AR SBS Polymer-modified asphalt shingle over Malarkey synthetic underlayment, plus ice & water shield at valleys and penetrations. Carries a 25-year Malarkey Emerald Premium warranty, transferable. - GAF Grand Sequoia AS / Timberline AS II (Class A rated assembly) over GAF Tiger Paw or Deck-Armor underlayment with GAF StormGuard at valleys. Carries the 25-year GAF Golden Pledge warranty when installed by a Master Elite contractor. For flat or low-slope sections on the same home, we install PVC single-ply membrane — naturally Class A rated and Title 24 cool-roof compliant in one product. For tile, we install Eagle and Boral assemblies in concrete and clay, each with their listed Class A assemblies. We pull the permit, document the listed assembly, and hand the homeowner the closeout package they'll need at resale or insurance renewal. CA Lic. #812250.

If you're in a WUI zone with a roof older than 20 years — especially with a non-Class A roof, like cedar shake or older 3-tab shingle — start the replacement conversation before your insurer forces it. Get a free Class A roof estimate Call (415) 456-3482 For the related energy-code rules, see California Title 24 and Your Roof Replacement. For cost ranges, see Roof Replacement Cost in Marin County.