Ferndale Two Fiber Cement Boards, Two Different Companies Behind Them
If you've been collecting siding quotes in Ferndale, you've probably noticed that fiber cement siding isn't a single product — it's a category. James Hardie is the name most homeowners recognize, but Cemplank (made by Plycem, part of the Elementia group) is a real fiber cement product too, sold through some of the same building supply channels. On paper, the two look similar: both are cement, sand, and cellulose fiber, both are cut and installed the same general way, and both outperform vinyl and wood in fire resistance and durability. We get asked fairly often why we only install one of them. It's a fair question, and the honest answer isn't that Cemplank is a bad product — it's that the two companies back their boards very differently, and here in Whatcom County, those differences matter more than they would somewhere drier and calmer.
What Cemplank Gets Right
Give credit where it's due: fiber cement as a category is a good choice for the Pacific Northwest. Cemplank boards are non-combustible, resist rot better than wood or engineered wood siding, and hold paint longer than most alternatives. For a budget-conscious project where fiber cement is being compared against vinyl or LP SmartSide, Cemplank is a step up. It's a legitimate product made by a legitimate manufacturer, and plenty of contractors install it without issue.
Where the Trade-offs Show Up
Factory Finish and Field Painting
James Hardie's ColorPlus finish is baked on at the factory using a process engineered specifically for their board, with a matched caulk system and a warranty that follows the finish, not just the substrate. Cemplank is more commonly sold primed, which means the finish coat depends heavily on the installing crew's prep and the paint product used — and the long-term performance of that finish becomes a variable instead of a guarantee. In a climate where driving rain and salt-laden air off the Strait test every seam and coat of paint, we'd rather not be gambling on field-applied finish quality on a product that isn't designed around it.
Warranty Structure
Both companies offer warranties, but they aren't built the same way. Hardie's warranty is transferable to a new owner if the home sells, which matters in a market like Ferndale and Whatcom County where houses change hands. Coverage terms, what's included, and how claims are handled differ enough between the two manufacturers that we'd rather stand behind the one whose warranty structure we can explain clearly to a homeowner without a lot of asterisks.
Regional Engineering
James Hardie makes climate-specific product lines — HZ5 for colder, wetter regions like ours — with formulations adjusted for moisture exposure and freeze-thaw cycling. That's a meaningful detail in a county that sees a real moss season and months of sustained damp. We haven't seen the same depth of regional product differentiation from Cemplank. That doesn't mean their standard board fails here — it means one manufacturer engineered specifically for conditions like Ferndale's, and one didn't, as far as we can tell.
Local Supply and Support
James Hardie has a large, established network of installers, distributors, and technical support in the Pacific Northwest. That means faster access to matching trim, touch-up materials, and replacement pieces years down the road if a board gets cracked by a stray branch or a ladder. Cemplank's presence in this specific corner of Washington is thinner, which can turn a small repair into a longer wait for materials.
Why Ferndale's Climate Raises the Stakes
None of this is theoretical for a house near Bellingham Bay or out toward Birch Bay. Salt air accelerates corrosion on fasteners and trim, driving rain off the water finds every gap in flashing and caulk, and Whatcom County's long gray, damp stretch from fall through spring gives moss and mildew months to work on a north-facing wall. Siding here doesn't get a break — it's wet, salted, and shaded for a large part of the year. That's exactly the kind of exposure where the gap between "fiber cement" as a category and a specific manufacturer's engineering, finish process, and warranty starts to matter. We'd rather install the product where we're confident in all three than explain a shortfall five years in.
Why We Standardized on James Hardie
| Factor | What It Means for a Ferndale Home |
|---|---|
| Factory-cured ColorPlus finish | Consistent, warranted color performance without depending on field paint quality |
| HZ5 climate engineering | Formulated for wet, cooler regions rather than a one-size-fits-all board |
| Transferable warranty | Protects resale value in a county where homes turn over |
| Local supply network | Faster matching repairs and touch-ups years after install |
We didn't standardize on James Hardie because it's the only fiber cement product on the market — Cemplank proves it isn't. We standardized on it because, board for board, the finish process, the climate-specific formulation, the warranty terms, and the local support all lined up better for the kind of weather Ferndale and Whatcom County actually deliver. When we put siding on a home, we want to be confident about how it'll look and perform in year fifteen, not just year one.
If you're weighing siding options for a home in Ferndale or anywhere around Whatcom County, we're happy to walk you through what we install, why, and what it would look like on your house. Reach out for a free, no-pressure estimate — no obligation, just straight answers.