Ferndale Blaine Sits Right Where Weather Meets Water
Blaine is about as coastal as Whatcom County gets. Homes here sit close to open water near the Canadian border, which means the weather patterns that shape everyday life also shape how a house ages. Wind comes off the water with real force, rain arrives sideways more often than straight down, and the air itself carries salt that settles on every exterior surface within reach of the shoreline. None of that is unusual for a Pacific Northwest coastal town, but it does mean that siding, trim, and fasteners in Blaine take a harder beating than the same materials would fifteen or twenty miles inland.
Ferndale Siding works throughout Whatcom County, and Blaine is one of the areas where the difference between a siding job done right and one done to minimum code really shows up over time. We've built our approach around what actually holds up in this specific kind of exposure, not around what looks fine in a showroom.
What Salt Air and Driving Rain Actually Do to a House
Salt Air
Airborne salt is corrosive to metal and hard on finishes. Fasteners, flashing, and hardware that aren't rated for coastal exposure can start showing rust streaks and pitting years before they would inland. Paint and coatings that aren't formulated to resist salt deposition tend to chalk, fade, and break down faster near the water, which shortens the interval between repaint jobs and, more importantly, shortens the window before the substrate underneath starts absorbing moisture it shouldn't.
Driving Rain
Wind-driven rain doesn't just fall on a wall — it gets pushed into every gap, seam, and lap joint that isn't properly sealed and flashed. On a house facing open water or an unobstructed wind corridor, that pressure is constant during storm season. Siding systems and installation details that would be adequate in a sheltered inland yard can fail here simply because the water is being forced somewhere it was never designed to go.
Blaine's Long Moss Season
Whatcom County's wet season stretches long, and Blaine's proximity to the water keeps humidity elevated even on days without active rain. North-facing walls, shaded siding runs, and any area that stays damp longer than it should become prime territory for moss and algae growth. Beyond the cosmetic issue, sustained moisture against a wall surface is what accelerates rot in wood-based products and breaks down finishes that aren't built to shed water aggressively. A siding system's ability to dry out between wet spells matters as much as its ability to resist water in the first place.
Why We Install Only James Hardie Fiber Cement Siding
Ferndale Siding made a deliberate decision to install James Hardie fiber cement exclusively — not LP SmartSide, not vinyl, not Cemplank or Allura, not primed spruce or cedar. That's not a marketing position; it's a practical one built around what we've seen hold up in exactly this kind of climate.
Built for the Pacific Northwest Specifically
James Hardie engineers its HZ5 product line for regions with the kind of moisture exposure, temperature swings, and coastal influence found in Western Washington. Fiber cement itself is inorganic — it's made from cement, sand, and cellulose fibers — so it doesn't rot, delaminate from moisture absorption, or provide a food source for the fungal growth that damages organic siding materials over time.
ColorPlus Factory Finish
Rather than relying on field-applied paint, Hardie's ColorPlus finish is baked on at the factory in a controlled process, which produces a more consistent, more durable bond than paint applied on-site under variable weather. In a salt-air environment where finishes take extra abuse, that factory-cured coating holds color and resists fading longer than most site-applied paint jobs, and it comes with its own finish warranty separate from the substrate warranty.
Non-Combustible
Fiber cement doesn't contribute fuel to a fire the way wood-based sidings can. That's a meaningful consideration anywhere in Washington, and it's simply a better baseline material property regardless of a given property's specific wildfire exposure.
Warranty Structure
James Hardie backs its siding with a long, transferable limited warranty when installed to manufacturer specification. That transferability matters to homeowners who may sell within the warranty period — it's a real asset attached to the house, not just to the original buyer.
How Fiber Cement Compares to Other Common Siding Materials
We get asked why we don't install other well-known products. Here's an honest, factor-by-factor look at how they generally compare in a coastal Whatcom County climate:
| Factor | James Hardie Fiber Cement | Wood / Cedar | Vinyl | Engineered Wood (LP-type) |
|---|---|---|---|---|
| Moisture tolerance | Excellent — inorganic, doesn't absorb and swell | Requires diligent sealing and maintenance | Water-resistant but can trap moisture behind panels | Vulnerable at cut edges and joints if not sealed |
| Salt air / corrosion resistance | Strong; factory finish holds up well | Finish degrades faster near salt exposure | Can become brittle and discolor over time | Coating sensitive to prolonged moisture exposure |
| Fire resistance | Non-combustible | Combustible | Can melt/deform under heat | Combustible |
| Maintenance burden | Low — factory finish, no repainting cycle typically needed for years | High — regular staining/sealing/painting | Low, but cracking and fading are common over time | Moderate — edge sealing and inspection important |
| Typical warranty | Long, transferable limited warranty | Varies by installer | Varies, often prorated | Manufacturer-specific, installation-sensitive |
Every one of these products has legitimate uses and honest strengths. Our decision to install only James Hardie reflects what we've found performs most consistently for the specific climate our customers live in, not a claim that other materials can't work anywhere.
Correct Installation Matters as Much as the Material
Even the right siding fails early if it's installed wrong, and coastal exposure has zero tolerance for shortcuts. In Blaine, the details we pay close attention to include:
- Proper flashing at every window, door, and roofline intersection so wind-driven rain has nowhere to enter
- Correct fastener spacing and type — including corrosion-resistant fasteners appropriate for salt-air exposure
- Rainscreen or ventilated gap installation where appropriate, so walls can dry out between wet periods rather than trapping moisture
- Manufacturer-specified gaps at butt joints and trim to allow for expansion without forcing water behind the siding
- Starter strips and kick-out flashing installed to spec, not skipped to save time
These aren't optional refinements — they're the difference between siding that reaches its full service life and siding that develops problems five or ten years in, right around the point a homeowner assumes they're done thinking about it.
More Than Siding: Roofing, Windows, and Decks
Siding is only one part of a home's exterior envelope, and in Blaine's climate, the pieces work together. A roof that's shedding water properly protects the siding below it from runoff and staining. Windows that are flashed and sealed correctly keep wind-driven rain from finding its way behind the siding at every opening. Decks exposed to the same salt air and rain need materials and fastening that hold up the same way siding does. We handle all four — siding, roofing, windows, and decks — because treating them as one connected system, rather than four separate projects, is how a house actually stays protected long-term.
Why a Local Crew Matters in Blaine
A crew that works Whatcom County's coastline regularly knows which walls on a typical Blaine property take the worst of the wind and rain, understands how quickly moss establishes itself in the shaded, damp spots, and doesn't need to guess at fastener and flashing choices for salt-air exposure. That local familiarity shows up in the details — the kind of details that don't matter for the first year or two but matter enormously by year ten.
When you're vetting any contractor for exterior work in Blaine, a few things are worth confirming before you sign anything:
- Washington state contractor license and current insurance, verifiable directly
- Manufacturer certification or training specific to the siding product being installed
- A written scope of work that specifies flashing, fastener type, and gap details — not just "install siding"
- Willingness to explain why they use the products they use, including trade-offs
- References or examples of completed work in similar coastal conditions
What to Expect From an Estimate
Every Blaine property faces the coast a little differently — some sit right on the water, others are set back with more shelter from trees or neighboring structures — so the right approach depends on the specific exposure of your home. We look at wall orientation, existing moisture damage, current siding condition, and trim and flashing details before recommending a scope of work.
If you're weighing a siding, roofing, window, or deck project on a Blaine property, we're happy to walk the exterior with you and give you a straightforward, no-pressure estimate — including an honest read on what your home's specific exposure calls for. Use the form below to get started.