Ferndale Two Fiber Cement Brands, One Honest Comparison
If you've been shopping for siding in Ferndale or anywhere in Whatcom County, you've probably run into two names: James Hardie and Allura. Both are fiber cement products — a mix of cement, sand, and cellulose fibers pressed into planks and panels. Both are non-combustible, both resist rot better than wood, and both hold paint or factory finish longer than vinyl. On paper, they look like close competitors.
We get asked fairly often why our crews only carry James Hardie products when Allura is sitting right there, often at a lower bid price. This page is our honest answer. We're not going to tell you Allura is junk, because it isn't — it's a legitimate fiber cement product manufactured in the U.S. and used on plenty of homes. What we're going to explain is why, after weighing manufacturing history, warranty structure, and how each product actually performs in a marine climate like ours, we made Hardie our standard and stopped bidding Allura jobs.
What Allura Gets Right
Allura fiber cement (the modern successor to the old Cemplank brand many contractors remember) is a real fiber cement product, not an imitation. It's non-combustible, it takes paint well, and it holds up to the Pacific Northwest's rain far better than untreated wood siding or engineered wood products. For a homeowner comparing fiber cement to vinyl or LP SmartSide, Allura is a genuine step up in durability.
Where it competes hardest is price. Allura frequently comes in under James Hardie on material cost, and some contractors like it because it's a bit easier to source in certain markets. If your only two options were Allura or vinyl, Allura would usually be the better long-term investment.
Where the Comparison Gets More Complicated
The catch is that "fiber cement" isn't one uniform product — the exact cement-to-fiber ratio, the curing process, and the factory finish system vary by manufacturer, and those differences show up over years, not on install day. That's where our decision to standardize on one brand actually comes from.
Manufacturing Track Record and Consistency
James Hardie invented the modern fiber cement siding category and has been refining its formulation and manufacturing process for decades, with dedicated engineering for different climate zones (more on that below). Allura's ownership and branding have changed hands more than once over the years, which isn't disqualifying on its own, but it does mean less of a continuous, decades-long performance record tied to a single company standing behind its own product line.
When we install siding, we're making a bet on a product's next 30-plus years on a house, not just the next 30 days. We'd rather make that bet with a manufacturer whose formulation, quality control, and warranty terms have stayed consistent under one name.
Climate-Specific Engineering
This is the piece that matters most for Ferndale specifically. James Hardie makes region-specific product lines — HZ5 for climates that see freeze-thaw cycles and moisture exposure like ours. The plank is engineered with that climate zone in mind, not a single generic formulation sold everywhere. Allura sells nationally with less of that explicit climate-zone differentiation. In a county that gets salt-laden air off the Strait of Georgia, driving rain for months at a stretch, and a moss season that coats every north-facing wall, a product engineered for our specific moisture exposure is worth more than a lower bid price.
Factory Finish: The Part Homeowners Underrate
The factory finish is arguably more important than the substrate underneath it, because it's the finish that fights UV, moisture, and mildew every single day. James Hardie's ColorPlus finish is baked on in a controlled factory environment through multiple coats, and it's backed by its own dedicated finish warranty separate from the substrate warranty. Allura offers factory-finished options too, but the finish warranty terms and track record aren't matched to the same multi-decade history.
In a climate like Whatcom County's, where siding stays damp for long stretches and moss and algae growth is a constant fight, the quality of the factory finish determines how often you're repainting and how well the surface resists moss gaining a foothold in the first place.
Warranty Structure Side by Side
Warranty paperwork is where a lot of siding decisions get made, and it's worth reading closely rather than taking a sales pitch at face value.
| Factor | James Hardie | Allura |
|---|---|---|
| Substrate warranty | Long-term, non-prorated on most residential product lines | Warranty offered, often with prorated terms after an initial period |
| Factory finish warranty | Separate ColorPlus finish warranty, distinct from substrate coverage | Finish warranty terms vary by product and are less standardized |
| Transferability | Transferable to a new owner within a defined window | Transfer terms vary by product line |
| Climate-specific formulation | Yes — HZ5/HZ10 zone-engineered products | Sold as a more uniform national product |
| Contractor certification network | Established Preferred Contractor program with installation standards | Less standardized certification presence regionally |
None of this means Allura's warranty is worthless — it isn't. It means that when we compared the fine print side by side, Hardie's terms gave homeowners a clearer, longer, better-documented safety net, and that's the kind of thing you want locked in before siding goes up, not after a problem shows up in year twelve.
Installation Sensitivity in a Wet Climate
Fiber cement siding is only as good as its installation, regardless of brand. Improper flashing, wrong fastener placement, or gaps at butt joints will let moisture behind any fiber cement product and cause problems — swelling, delamination, paint failure — no matter whose name is on the plank.
That said, a manufacturer that publishes detailed, climate-specific installation guidance and backs a certified contractor network gives installers less room for guesswork. James Hardie's installation specs are extensive and specific to HZ product lines, and that specificity matters more in a place like Ferndale, where driving rain off the water and a long wet season punish shortcuts fast. We didn't want to run two installation standards across our crews — one for Hardie, a looser one for Allura — so we standardized on the product with the deeper, more climate-specific installation documentation.
What This Looks Like on a Real Job
- Correct rainscreen or drainage plane behind the siding, not direct-to-sheathing installation
- Manufacturer-specified fastener type, spacing, and penetration depth — not "close enough"
- Proper flashing and kick-out details at every roof-wall intersection, a common failure point in heavy-rain regions
- Correct gapping and caulking at butt joints and trim to allow for expansion without trapping water
- Factory-finished cut edges sealed per manufacturer spec, not left raw
Availability and Long-Term Support
Because Hardie has a large, established distribution and contractor network across the Pacific Northwest, we can get consistent product batches, matching trim and accessories, and manufacturer-backed technical support years after the original install if a homeowner ever needs a repair or an addition matched to existing siding. That long-term availability is a practical, unglamorous reason we standardized on one brand — it means a homeowner's siding problem in year fifteen doesn't turn into a scavenger hunt for a discontinued color or profile.
Why We Standardized on James Hardie
Put together, the differences aren't about Allura being a bad product — it's that when we lined up manufacturing consistency, climate-zone-specific engineering, factory finish warranty terms, and installation documentation, James Hardie came out ahead on every point that matters for a house that has to survive Whatcom County winters and wet seasons for the next three decades. Rather than carrying two fiber cement lines and giving customers a confusing "good vs. better" choice, we made a call: install one product, install it right, and stand behind it with a manufacturer whose warranty and track record we trust.
If you're comparing bids and one contractor is offering Allura at a lower price, that's not automatically a red flag — but it's worth asking exactly which warranty terms and installation details are backing that lower number before you decide.
A Simple Checklist Before You Choose a Fiber Cement Product
- Ask for the specific product line and climate zone rating, not just "fiber cement"
- Get the actual warranty document, not a summary — read what's prorated and what isn't
- Confirm whether the factory finish has its own separate warranty
- Ask how the contractor handles flashing and drainage behind the siding, in writing
- Check whether the contractor is certified or trained specifically on the product they're installing
- Ask what happens if you need matching siding for a repair or addition in ten years
If you're weighing siding options for a home in Ferndale or anywhere else in Whatcom County, we're happy to walk through what we saw in our own comparison and show you the actual Hardie product lines and finishes we install. There's no pressure and no obligation — just a straight answer and a free estimate for your home.