Blaine Siding Two Fiber Cement Products, Two Different Companies Behind Them
If you've gotten more than one bid on a siding job in Whatcom County, you've probably noticed that not every contractor quotes the same material. Some quote James Hardie. Others quote Cemplank. Both get called "fiber cement," both look similar stacked in a lumberyard, and both will outlast wood or vinyl if installed correctly. So why does it matter which one goes on your house?
It matters because fiber cement is a category, not a single product. Cement, sand, and cellulose fiber can be formulated, cured, and finished in different ways, and those differences show up over years of exposure to salt air, driving rain, and the long moss season that defines exterior maintenance here in Blaine. This page is our honest explanation of what Cemplank does well, where it falls short of what we're willing to put our name behind, and why we made the decision years ago to install James Hardie products exclusively.
What Cemplank Gets Right
We're not going to pretend Cemplank is a bad product, because it isn't. It's a legitimate fiber cement siding line, and fiber cement as a category is a real upgrade over wood or vinyl for a coastal climate like ours. Cemplank shares the core advantages of the category:
- Non-combustible core material, unlike vinyl or engineered wood
- Resistant to rot and insect damage in a way that cedar and primed spruce are not
- Holds paint and factory finishes better than wood over the long term
- Priced competitively, which makes it attractive on bid sheets
For a homeowner comparing siding purely by material class — fiber cement versus everything else — Cemplank is a reasonable choice, and there are contractors in this region who install it well. We simply made a different call, and it comes down to what happens after the material leaves the factory.
Where the Trade-offs Show Up
Factory Finish and Color Warranty
This is the biggest practical difference for a homeowner. James Hardie's ColorPlus finish is a baked-on, multi-coat factory finish backed by its own separate warranty against fading and peeling, applied under controlled conditions before the boards ever reach a jobsite. Cemplank's finish options and warranty structure are different in scope and duration. On a house that faces the Strait of Georgia or sits exposed to onshore weather, the finish is doing constant work — shedding salt residue, standing up to UV, and resisting the kind of chalking and fading that shows first on south- and west-facing walls.
Climate-Specific Engineering
James Hardie manufactures regionally engineered product lines — its HZ5 formulation, for example, is built specifically for the wetter, harsher climate zones the Pacific Northwest falls into, with moisture behavior tuned for exactly the freeze-thaw and rain-load conditions Whatcom County sees. That's a level of climate-specific engineering that not every fiber cement manufacturer offers, and it's not something you can retrofit after installation — it's baked into the product before it ever ships.
Availability and Installer Depth
James Hardie has invested heavily in contractor training, certification programs, and a large enough installer network that specifying, ordering, and warrantying a job is straightforward. That depth of support — training materials, installation specs, a large base of installers who've seen the product in enough climates to know its quirks — is harder to match for smaller regional brands.
Warranty Structure
Hardie's product warranty is transferable to a new owner if you sell the home within the warranty period, which matters for resale value. Warranty terms across the fiber cement category vary by manufacturer and by product line, so this is worth reading carefully no matter which brand a contractor proposes — but it's one of the specific points where we found Hardie's paperwork stronger and simpler to stand behind.
Blaine's Climate Makes the Difference Matter
None of this is theoretical if you live in Blaine or anywhere else in Whatcom County. Our exterior building materials deal with a specific combination of stresses that a lot of siding products were never engineered for:
- Salt air: proximity to Boundary Bay and the Strait means airborne salt is a constant, low-level corrosive presence on finishes and fasteners
- Driving rain: wind-driven rain off the water pushes moisture into joints and laps that stay dry in calmer inland climates
- A long moss season: shaded, north-facing walls and anything under tree cover stay damp for months, which is exactly the environment where a weaker factory finish shows chalking, staining, and mildew first
A siding product's factory finish and moisture-shedding detailing aren't cosmetic extras in this climate — they're the difference between a wall that looks good in year twelve and one that needs recaulking and repainting by year six. This is the practical reason we don't treat "fiber cement" as a single interchangeable category when we're quoting a job here.
Side-by-Side: Cemplank vs. James Hardie
| Factor | Cemplank | James Hardie |
|---|---|---|
| Core material | Fiber cement | Fiber cement |
| Fire resistance | Non-combustible | Non-combustible |
| Factory finish | Manufacturer-applied finish options | ColorPlus baked-on, multi-coat finish |
| Climate-specific formulations | Standard product line | HZ5 and other zone-engineered lines for wet climates |
| Finish warranty | Varies by product | Separate, long-term finish warranty on ColorPlus products |
| Warranty transferability | Varies by product | Transferable to new owner within term |
| Regional installer training network | Smaller | Extensive, with contractor certification programs |
Why We Standardized on James Hardie Only
We used to install more than one fiber cement brand. What changed our mind wasn't a single bad experience — it was a pattern, visible on callbacks and re-inspections over years of working on homes exposed to this exact coastline climate: finishes that needed repainting sooner than expected, warranty claims that were more complicated to process, and a narrower support network when questions came up mid-project. None of that means Cemplank is unusable. It means that when we're the ones standing behind the installation for the next fifteen to thirty years, we want the strongest factory finish, the most climate-specific engineering, and the simplest warranty path available — and for our region, that's James Hardie.
Standardizing on one manufacturer also means our crews install the same product system, week after week, on every job. That repetition is where real installation quality comes from — not from being generalists across five different fiber cement lines, but from knowing one system's flashing details, fastener spacing, and joint treatment cold.
What to Ask Any Contractor Bidding Fiber Cement
Whether you end up going with us or another contractor, these are the questions worth asking before you sign anything:
- Which specific product line and climate zone rating is being quoted — not just "fiber cement," but the exact product name
- What the factory finish warranty covers, how long it lasts, and whether it's transferable if you sell
- Whether the installer is certified or trained specifically on that manufacturer's installation specs
- What the manufacturer's own labor/workmanship warranty coverage looks like versus what's just the contractor's word
- How the product's flashing and joint details are handled around windows, doors, and butt joints — this is where most real-world failures start, regardless of brand
- Whether the quote includes house wrap, flashing tape, and starter strips, or just the siding boards themselves
The Real Cost Conversation
Material cost alone isn't the whole picture, and it's worth being upfront that Cemplank often comes in somewhat cheaper per square foot than James Hardie ColorPlus products. That price gap is real. What it doesn't show is the cost that shows up later — repainting a finish that fades faster, dealing with a warranty claim process that's less established, or replacing boards that weren't engineered for a wet climate zone. We'd rather quote the product we believe holds up here and be transparent about why it costs what it costs, than sell a cheaper material and let a homeowner find out the difference at year eight.
If a lower upfront number is the deciding factor for your project, we'll say so honestly rather than talk you out of your budget — but we'll also tell you plainly that it's not a job we take on, because we only install what we're willing to warranty ourselves.
Get a Straight Answer for Your House
Every home on the water, in the trees, or out in the open wind in Blaine sees this climate a little differently, and the right siding decision depends on your specific exposure, not just a brand name. If you'd like an honest look at your home and a no-pressure estimate on James Hardie siding, we're happy to walk the property with you and talk through what we'd recommend and why.