The Colorado Wildfire Resiliency Code applies only to parcels the state’s map places in a fire intensity class, and Parker is production-built subdivisions, not forested slope. The mapped parcels sit where houses meet grassland fuels: lots backing to the Cherry Creek corridor, the edges of open space parks, and the drainages between subdivisions.
If yours is one of them, the code changes what a big exterior project becomes. If not, nothing changes. We look up the parcel before we quote, so you know which situation you are in before a number is on paper.
The state’s code map sorts land into three fire intensity classes: low, meaning grasses and scattered shrubs; moderate, meaning denser shrubs and small trees; and high, meaning continuous heavy fuel. Low parcels get Class 1 structure hardening, which reaches the roof, gutters, and vents. Moderate and high parcels get Class 2, which adds walls, eaves, windows, doors, and decks. Parker’s mapped parcels are almost all low or moderate, because the fuel here is grass and cottonwood rather than timber, and that distinction decides whether your next siding job is touched by the code at all.
Nobody in Parker has to retrofit a house that is standing legally today; the code's own text says existing buildings continue as they are. It attaches to three projects, each with a threshold, and then to the elements those projects expose.
Section 101.6: replace a roof covering, or 25 percent or more of it, and the whole roof must finish as a Class A assembly under ASTM E108 or UL 790. Roofs already rated Class A are exempt. On a Parker home, that turns a one-slope hail claim into a whole-roof decision, and every Class A roof replacement we install is specified with that in mind.
Section 101.7: replace 25 percent or more of the exterior wall surface and all of it must finish in noncombustible, fire-retardant-treated, or ignition-resistant material, running from foundation to eave. The same section brings the five feet around the house under the immediate-zone rules. Our siding replacement service handles both the wall and the six-inch metal flashing at ground, deck, and roof.
Section 101.5 lets you add to a house without hardening the existing part, as long as the footprint grows by less than 500 square feet. At 500 or more, the addition must meet new-construction standards. Smaller additions, interior work, painting, and staining never trigger anything, and neither do repairs under the 25 percent lines.
On a Class 2 parcel, glazing must be tempered, multilayered, or 20-minute rated, which most double-pane units already satisfy; exterior doors must be noncombustible, solid-core, or rated; and the garage door gap cannot exceed one-eighth inch. Deck surfaces must be Class A, ignition-resistant, or at least Class B composite, and fencing within 8 feet of the house must be noncombustible or vinyl. We size window and door replacements and deck rebuilds to those listings before ordering.
Three questions come up on nearly every Parker call, and each has a clear answer from the state.
A Colorado statute signed in March 2024 voids any covenant that prohibits fire-hardened building materials. Your association can still weigh in on color and profile; it cannot refuse a Class A roof or noncombustible siding. James Hardie siding, with its ASTM E136 listing, is what we bring to those design review meetings.
The Colorado Division of Insurance states the code map exists for code application only and that insurers use their own, more granular tools. A yellow parcel does not mean a premium increase, and an unmapped parcel does not mean you are rated low-risk. Ask your carrier separately whether hardening earns a discount.
The class based on the actual fuels on the lot and within 300 feet, backed by documentation from a qualified wildfire professional. If your parcel is mapped moderately and you look out at a mowed park, that process exists for you.
Three steps take a Parker project from the map to a closed permit. None of them cost you anything until you approve a scope.
We look up your parcel on the state code map, confirm its class, and measure your roof and wall areas against the 25 percent lines, so you know before the estimate whether the code is in play.
We prepare the HOA architectural review and the Town of Parker permit application from the same set of product listings, so the fire ratings the reviewer needs are the same documents the committee sees.
We install to the manufacturer’s specification, schedule the Town’s inspections, and hand you the closed permit with the listings attached for your records and your insurer.
Three numbers say most of it, and the paperwork says the rest.
A roofing, siding, window, or deck project is an opportunity to strengthen your Parker home against wildfire exposure. GS Exterior Experts installs durable exterior products suited to fire-resilient construction while helping you understand the available options for your Parker home.
Whether you are repairing hail damage or planning a larger exterior upgrade, our team can help you choose materials that balance protection, performance, and curb appeal. Call GS Exterior Experts at (720) 683-6288 or complete our estimate form to get started.
The state’s Wildfire Resiliency Code map is searchable by address and shows fire intensity class by color. We check it for every estimate, and the Town’s Building Division can confirm what it will apply to a permit.
If your parcel is mapped and the repair covers 25 percent or more of the roof, the whole roof must finish as a Class A assembly. Many current asphalt and metal systems already carry that rating, so the practical effect is choosing the right product, not a bigger job.
Until you replace 25 percent or more of it, yes. Past that line on a Class 2 parcel, vinyl is permitted only over a one-hour rated or noncombustible wall assembly, and most homeowners find fiber cement the simpler path. We can compare both, along with the other siding products, with fire listings on file.
Colorado law, since 2024, voids covenants that prohibit fire-hardened materials, so the association cannot refuse the product itself. It can still review colors and profiles, and we prepare that submittal as part of the project.
Not by itself. The Colorado Division of Insurance says the code map is for code application only and that insurers use their own risk tools. Talk to your carrier about whether completed hardening qualifies for a discount.
Yes. Our Colorado Wildfire Resiliency Code e-book walks through the classes, triggers, and product requirements without the section numbers, and it is free to download.
