Anacortes Siding Two Fiber Cement Companies, One Very Different Standard
If you've spent any time researching siding for a home in Anacortes, you've probably noticed that fiber cement siding isn't a single product — it's a category, and more than one manufacturer makes it. James Hardie is the name most homeowners recognize, but Allura (formerly known under other brand names before consolidating) also produces a full line of fiber cement lap siding, panels, and trim. On paper, the two products look similar: both are cement, sand, and cellulose fiber pressed into boards, both are fire-resistant, both hold paint or factory finish better than wood, and both are marketed as low-maintenance alternatives to vinyl or cedar.
We get asked fairly often why we don't install Allura, given that it's a legitimate fiber cement product sold through some of the same lumberyards that carry Hardie. This page is our honest answer. It's not that Allura is a bad product in an absolute sense — it's that after years of installing and maintaining siding on homes exposed to Skagit County's salt air, driving rain, and long moss season, we settled on one manufacturer's system because consistency, engineering documentation, and warranty backing matter more here than they do in a drier climate.
What Allura Gets Right
Fair is fair. Allura fiber cement shares the core advantages of the fiber cement category over vinyl, wood, or engineered wood siding:
- It's non-combustible, which matters for fire-rated assemblies and insurance considerations.
- It resists rot and insect damage in a way that primed spruce, cedar, and OSB-based products cannot.
- It holds a straight, low-profile lap line and doesn't warp or cup the way wood siding can after a few wet seasons.
- It accepts factory-applied finishes that outlast field-applied paint.
- Pricing is generally competitive with Hardie, sometimes slightly lower per square.
Anyone telling you Allura is junk siding isn't being straight with you. It's a real fiber cement product manufactured to recognized industry standards. Our decision to not install it isn't about the material failing some basic quality bar — it's about a set of narrower, practical differences that show up over the 20-30 year life of a siding job, especially in a marine climate like ours.
Factory Finish: ColorPlus vs. the Alternatives
The single biggest difference we weigh is the factory finish system. James Hardie's ColorPlus Technology is a baked-on, multi-coat finish applied and cured in a controlled factory environment before the boards ever reach a jobsite. That process produces a more uniform, UV-stable finish than most field-applied paint, and it comes backed by a specific finish warranty separate from the substrate warranty.
Allura offers factory-primed and some factory-finished options, but the finish ecosystem isn't as deep or as uniformly documented across their full product line. In practice, that means more Allura installations end up job-site painted, which reintroduces the variable we're trying to eliminate by using fiber cement in the first place: paint failure. In a climate where siding gets rained on more days than not for half the year, and where salt-laden air off Fidalgo Island and the Sound accelerates finish breakdown, we don't want to gamble on a field-applied topcoat holding up as long as the board underneath it.
Why Finish Quality Matters More Here Than Elsewhere
A finish failure on fiber cement isn't cosmetic-only. Once a factory or field finish starts to chalk, crack, or lose adhesion, the substrate underneath is exposed to repeated wetting and drying cycles. Fiber cement is dimensionally stable, but it is not immune to moisture intrusion at cut edges, fastener penetrations, and butt joints if the protective finish breaks down early. In a place like Anacortes, where the marine layer keeps humidity elevated for long stretches and moss growth signals just how much moisture sits on exterior surfaces, a finish that's engineered to be baked on and lab-tested gives us more confidence than one that depends heavily on the applicator's conditions and technique on installation day.
Climate-Engineered Product Lines
James Hardie sells regionally engineered product lines — HZ5 and HZ10 — formulated differently depending on the climate zone a home sits in, with different moisture and freeze-thaw performance targets baked into the manufacturing process. The Pacific Northwest falls into a specific HZ zone, and Hardie's documentation is built around that regional engineering approach.
Allura doesn't market its core lap siding line with the same climate-zone-specific engineering story or the same volume of long-term regional performance documentation. That doesn't mean their board can't perform well here — it likely can, when installed correctly. But when we're the ones standing behind a 20+ year installation, we'd rather work with a manufacturer that has explicitly engineered and documented its product for wet marine climates like Skagit County's, rather than a general-purpose fiber cement board.
Warranty Structure: The Fine Print Matters
Both companies offer warranties, and on the surface the years-of-coverage numbers can look comparable. Where they diverge is in structure, transferability, and labor coverage — details that only surface when a homeowner actually needs to file a claim years down the road.
| Factor | Typical James Hardie Warranty Structure | Typical Allura Warranty Structure |
|---|---|---|
| Substrate coverage | Long-term, non-prorated for the board itself | Varies by product line, often prorated after initial years |
| Factory finish coverage | Separate ColorPlus finish warranty with defined fade/chip terms | Coverage tied more closely to whichever finish option was selected, less standardized |
| Transferability to new owner | Transferable with documented terms, useful at resale | Transfer terms vary by product and are less consistently documented |
| Labor/workmanship tie-in | Contractor labor warranties commonly stack alongside the manufacturer warranty through certified installer programs | Fewer regional contractors carry certified installer programs tied to Allura specifically |
None of this means an Allura warranty is worthless. It means that if something goes wrong in year twelve, the paperwork trail, the local dealer support, and the contractor network available to help resolve a claim are thinner. We've found that matters more to homeowners than they expect it to when they're just comparing sample boards.
Installation Sensitivity in a Wet, Salty Climate
Fiber cement siding is only as good as its installation, and this is true for every manufacturer's product. But some products are more forgiving of minor installation variance than others, and that forgiveness matters more in Anacortes than it would in a dry inland climate.
Correct fiber cement installation in our region means specific clearances above rooflines and decks, correct fastener patterns and depth, proper flashing at every penetration, back-priming or factory-sealing of cut edges, and rain-screen or drainage-plane detailing behind the siding to let incidental moisture escape rather than sit against the wall assembly. Get any of these wrong and you invite exactly the kind of slow moisture damage that shows up as staining, streaking, or soft trim years later — the same conditions that feed the moss and algae growth this area is known for.
We've built our installation process specifically around Hardie's published installation guidelines, our crew's training is built around that same system, and our detailing habits — clearances, flashing, fastener schedules — are all calibrated to one manufacturer's documented tolerances. Switching between product lines on different jobs increases the chance of applying the wrong detail to the wrong board, which is a risk we'd rather not carry.
What Driving Rain and Salt Air Actually Do to a Wall Assembly
Anacortes sits close enough to the water that wind-driven rain routinely hits siding at an angle, not just straight down, which pushes moisture into laps, joints, and fastener heads that a drier climate would rarely stress. Add salt-laden air, and any exposed fastener, cut edge, or finish weak point corrodes or degrades faster than the same detail would inland. Moss and algae then take hold wherever moisture lingers, which is common on north-facing and shaded walls through much of the year. None of this is unique to one siding brand, but it raises the stakes on getting every detail right the first time, which is exactly why we prefer standardizing on one well-documented system rather than switching between products.
Dealer Network and Long-Term Parts Matching
One practical issue homeowners rarely think about until a repair is needed: matching siding for a repair, addition, or storm damage patch ten or fifteen years after the original install. James Hardie's dealer network in the Pacific Northwest is deep enough that matching color, profile, and batch is usually straightforward. Allura's regional distribution footprint is smaller in western Washington, which can turn a simple repair into a longer wait or a visible color mismatch if the exact profile or finish run isn't readily stocked locally.
Why We Standardized on One Manufacturer
We made a deliberate choice to install only James Hardie fiber cement rather than carrying multiple fiber cement brands. That choice trades some flexibility for consistency: our crews install to one set of documented specs, we can speak specifically to warranty terms without hedging, our detailing habits are calibrated to one system's tolerances, and repair or color-matching years later is more predictable. In a climate as consistently wet and corrosive to building materials as ours, we'd rather be excellent at installing one well-documented, climate-engineered product than adequate across several.
That's the honest version of "why we don't install Allura." It's a legitimate product. We just decided the depth of regional engineering documentation, the factory finish system, the warranty structure, and the local dealer support tilted decisively toward one manufacturer, and we built our entire installation process around that decision.
Questions to Ask Any Contractor Comparing Fiber Cement Products
If you're shopping siding contractors and comparing fiber cement brands, these questions will tell you more than a sample board ever will:
- Is the finish factory-applied and warrantied separately from the substrate, or will it be painted on site?
- Is the specific product line engineered for this climate zone, and can the contractor show that documentation?
- What does the warranty cover after year ten, and is it prorated?
- Is the warranty transferable to a future homeowner, and under what terms?
- How deep is the local dealer network for future color and profile matching?
- Is the installer certified or specifically trained on this manufacturer's install specs, or working from general fiber cement guidelines?
If you're weighing your options for a siding replacement in Anacortes or elsewhere in Skagit County, we're happy to walk through what we install, why, and what it would look like on your home. Reach out for a free, no-pressure estimate — no obligation, just a straight answer about your options.