Glenhaven Siding What Allura Siding Is
Allura is a fiber cement siding brand, made by a different manufacturer than James Hardie but built from the same basic recipe: Portland cement, sand, and cellulose fiber, cured under pressure into a dense, noncombustible board. It comes in lap siding, vertical panels, and shingle-style profiles that look similar to Hardie's lineup on a spec sheet, and it costs less installed in a lot of markets. We get asked about it fairly often, usually by homeowners in Glenhaven who've gotten a bid that includes it and want a second opinion before they sign anything.
We're not going to tell you Allura is a bad product, because that's not true and it's not our call to make about someone else's manufacturing. What we will tell you is why, after years of installing and repairing fiber cement siding on homes across Whatcom County, we made the decision to install only James Hardie products and to turn down jobs that specify anything else. That decision isn't about brand loyalty. It's about what happens to a house over fifteen, twenty, thirty years of Pacific Northwest weather.
What Allura Gets Right
Fair is fair. Fiber cement as a category — Allura included — beats vinyl and wood siding on the fundamentals that matter most in our climate:
- It's noncombustible, which matters for insurance and for peace of mind.
- It doesn't rot, warp, or feed insects the way wood trim and lap siding can.
- It holds paint and factory finish far longer than wood, and won't dent like vinyl in a wind-driven hailstorm.
- It's dimensionally stable enough to run long, straight lines on a house without the waviness you get from vinyl in temperature swings.
If the choice in front of you is Allura versus vinyl or versus bare cedar, Allura is the more durable option almost every time. That's a real point in its favor and we're not going to pretend otherwise.
Why We Standardized on James Hardie Instead
Our decision to install only Hardie comes down to three things: product engineering for our specific climate, the factory finish, and how the warranty actually works when something goes wrong.
Product-Line Depth Engineered for Coastal Climates
James Hardie builds region-specific formulations — its HZ5 product line is engineered for the freeze-thaw and moisture cycles found in the Pacific Northwest, not a one-size-fits-all national board. Glenhaven sits close enough to salt air off the Sound, and gets enough driving rain off the water, that the difference between a generic fiber cement formula and one engineered for our specific moisture exposure shows up over time — in how the board handles repeated wetting, in how well it resists the kind of algae and moss growth that our long, damp shoulder seasons practically guarantee. Allura doesn't offer that same regional engineering tier, which means the board on your Whatcom County home is built to the same spec as a board going up in Arizona or Ohio.
Factory Finish and Color Retention
Hardie's ColorPlus finish is baked on in a controlled factory environment with multiple coats and a factory-applied color match down to the caulk and touch-up products. That matters more here than it would somewhere dry, because our siding spends a huge share of the year wet, shaded, and slow to dry out. A weaker factory finish shows fading, chalking, and streaking sooner under that kind of exposure. Allura offers its own factory-applied finish, but the coating systems and the depth of the warranty behind them differ from what Hardie backs its ColorPlus line with, and that gap tends to show up as a visible difference in how the two boards look after a decade of Whatcom County winters, not in year one.
Warranty Structure
Both brands offer a written limited warranty, and on paper the numbers can look close. The real difference is in the structure — what's prorated, what's covered on labor versus material only, and whether the warranty is transferable if you sell the house. We've had to help homeowners work through a warranty claim on siding we didn't install, and the paperwork and manufacturer responsiveness are not identical across brands. We install Hardie in part because when there's a genuine manufacturing defect, we know exactly how that claim gets resolved and we're confident it will be.
Allura vs. James Hardie: A Side-by-Side Look
| Factor | Allura Fiber Cement | James Hardie |
|---|---|---|
| Core material | Cement, sand, cellulose fiber | Cement, sand, cellulose fiber (engineered mix) |
| Climate-specific formulation | Single national formulation | Region-specific lines (HZ5 for Pacific Northwest) |
| Factory finish | Factory-applied finish available | ColorPlus baked-on finish with matched accessories |
| Fire resistance | Noncombustible | Noncombustible |
| Local installer familiarity in Whatcom County | Less common; fewer local crews specialize in it | Widely installed; established local supply and repair knowledge |
| Warranty structure | Limited warranty, brand-specific terms | Limited warranty with well-documented local claims history |
| Typical installed cost | Generally lower | Generally moderate-to-higher |
The Whatcom County Climate Test
Every siding decision in Glenhaven eventually gets tested by the same three things: salt air, driving rain, and moss season that seems to run longer every year. Salt air accelerates corrosion on fasteners and hardware and slowly degrades weaker coatings. Driving rain, especially the sideways kind that comes off the water in a winter system, finds every gap in flashing and caulk and pushes water where it shouldn't go. Moss and algae need shade and moisture to establish, and a lot of Glenhaven lots have both in spades under mature trees.
None of that is unique to Allura — every siding product in this region faces the same conditions. But it's exactly why we don't treat siding as an interchangeable commodity. The board that's engineered and finished for this specific climate is going to hold its color, resist moss staining, and keep water out at the seams longer than a board built to a generic national spec. Over a fifteen-year window, that difference is the whole reason we made the call we did.
Installation Sensitivity Matters More Than the Label
Here's something that doesn't get talked about enough: fiber cement siding, whether it's Allura or Hardie, is only as good as its installation. Both products are unforgiving of the same mistakes — nailing too tight or too loose, wrong fastener spacing, missing rain-screen gaps, caulking joints that should have been left to breathe, cutting boards without proper dust control. A premium board installed poorly will fail faster than a mid-tier board installed correctly.
Part of why we standardized on one product line is that it lets our crews build deep, repeatable expertise in exactly how that board behaves — how it cuts, how it fastens, how the specific trim and flashing details work with it in our climate. Switching between brands job to job means relearning small but important details every time, and small details are exactly what determines whether siding lasts twenty years or forty in a place like Glenhaven.
What This Means If You're Comparing Bids in Glenhaven
If you've got quotes in hand for different siding brands, here's what actually matters when you compare them:
- Ask what specific product line is being quoted — not just "fiber cement," but the exact series and whether it's rated for coastal/marine exposure.
- Ask whether the finish is factory-applied or field-painted, and what the finish warranty covers separately from the material warranty.
- Ask how many jobs the crew has done with that specific brand in Whatcom County, not just fiber cement in general.
- Ask what the warranty covers if a manufacturing defect shows up five or ten years in — material only, or labor to remove and replace too.
- Get the installed cost per square foot in writing, including trim, flashing, and rain-screen details, not just the siding material line item.
- Ask directly why the contractor recommends the brand they're quoting — a straight answer tells you a lot.
Our Recommendation
We install James Hardie exclusively because it's the product we trust to hold up to salt air, driving rain, and moss season without cutting corners on the finish or the fastener details that make the real difference over time. Allura is a legitimate fiber cement product and a step up from vinyl or bare wood — we just won't put our name behind an installation using it, because we've built our process, our crew training, and our warranty relationships around one system we know inside and out.
If you're weighing siding options for a home in Glenhaven, we're happy to walk through what we see on your specific house and give you a straight, no-pressure estimate for a James Hardie installation — no obligation, just an honest look at what your home actually needs.