Ferndale Siding Two Fiber Cement Products, One Choice for Whatcom County Homes
If you've priced out siding in Ferndale, you've probably run into two names that sound almost interchangeable: James Hardie and Cemplank. Both are fiber cement siding — a blend of cement, sand, and cellulose fibers engineered to resist rot, fire, and pests better than wood or vinyl. On paper, they look like close cousins. In practice, we've made a deliberate business decision to install only James Hardie, and we think Ferndale homeowners deserve to know why before they sign a contract with anyone.
What Cemplank Gets Right
We're not going to pretend Cemplank is a bad product. It's manufactured by Plycem, a legitimate fiber cement producer, and it meets the same basic performance category as Hardie: non-combustible, dimensionally stable, and far more durable than vinyl or untreated wood siding. For a lot of markets, it's a reasonable budget alternative, and some contractors install it well and stand behind it.
Where the Difference Actually Shows Up
Our reservations aren't about whether Cemplank is "fake" fiber cement — it isn't. They're about the practical realities of installing and maintaining it on homes here on the Salish Sea side of Whatcom County, where salt air, driving rain off the Strait, and a moss season that can run eight months a year put real, sustained stress on an exterior.
- Factory finish depth and consistency. James Hardie's ColorPlus finish is a baked-on, multi-coat factory process backed by its own dedicated warranty against fading and peeling. Cemplank's finish options and factory-coating consistency have historically varied more by region and product line, which matters a lot when the siding is going to sit under near-constant coastal moisture and UV cycling.
- Climate-specific engineering. Hardie builds distinct product lines (HZ5, HZ10) specifically engineered for different moisture and freeze-thaw zones. That kind of region-matched engineering gives us more confidence installing in a marine climate like Ferndale's, where siding rarely gets a long dry stretch to fully release moisture.
- Supply chain and product continuity. Hardie's national manufacturing footprint and distribution network mean we can usually match trim, panel, and repair pieces years down the road. Availability and exact color/profile matching for Cemplank replacement pieces has been less predictable in our experience, which becomes a real headache if a homeowner ever needs a repair after a storm or an accidental impact.
- Warranty structure and transferability. Hardie's warranty terms on both the substrate and the ColorPlus finish are well documented and transfer to a new owner if the home sells — something buyers and their inspectors increasingly ask about. We'd rather stand behind one warranty system we know inside and out than juggle two.
Installation Sensitivity Is the Real Story
Fiber cement siding, whatever the brand, is only as good as its installation. Improper flashing, wrong fastener placement, or panels installed too close to grade will cause moisture problems in any fiber cement product — that's not unique to Cemplank. But when a product's installation guidelines, fastener specs, and clearance requirements are less standardized across a contractor's crew, the room for error grows. We'd rather have one set of installation specs our crews know cold, appropriate for one product, than split our expertise across two systems and risk a callback six years from now when a moss-heavy Ferndale winter finds the one seam that wasn't detailed quite right.
Why This Matters More in Ferndale Than Some Places
Whatcom County's climate isn't dramatic — no hurricanes, no wildfires racing through — but it's relentless. Homes here deal with sustained damp, salt-tinged air rolling in off Bellingham Bay and the Strait of Georgia, and long stretches where north-facing walls barely see direct sun from October through April. That combination is exactly what accelerates moss growth and tests the long-term durability of a finish coat. It's a slow-motion stress test, and it's the reason we don't want to gamble on a product where we have less certainty about long-term finish performance and part availability.
Why We Standardized on James Hardie
We made the call to install James Hardie exclusively because it lets us do one thing very well instead of two things adequately. Our crews know Hardie's fastening patterns, clearances, and caulking requirements by heart. We know its ColorPlus finish options and how they hold up through a Ferndale winter. We know how its warranty works if something ever goes wrong. That focus is what lets us stand behind the work with confidence, not just a sales pitch.
None of this means Cemplank is a scam or that homeowners who've chosen it made a mistake. It means that when we're the ones putting our name on the installation, we've chosen the fiber cement system we trust most for this specific climate and the long haul that comes with it.
Get a Straight Answer for Your Home
Every home and every budget is different, and the right siding decision should be based on your house, not a generic comparison. If you'd like a no-pressure look at your siding and an honest estimate for a James Hardie installation, reach out using the form below — we're happy to walk through the options with you.