Board & Batten Siding in Blaine, WA — Ferndale Crew

Board & Batten Siding, Built for Blaine's Coastline

Blaine sits right on the water, tucked against the Canadian border in northern Whatcom County, and that location shapes everything about how siding performs there. Homes here take a steadier beating from salt-laden air off the Strait of Georgia and Semiahmoo Bay than siding fifteen miles inland ever sees. Add driving rain that comes in sideways off the water and a moss season that can stretch from October through May, and you've got a climate that is genuinely harder on exterior materials than the regional average. Board and batten siding — with its bold vertical lines, deep shadow reveals, and clean modern-farmhouse look — is one of the more popular styles requested in Blaine, and it can hold up beautifully here. But only if it's built and installed with this specific coastline in mind.

This page covers what board and batten actually needs to succeed in Blaine, what a correct installation looks like, and why we install it in James Hardie fiber cement only — never vinyl, LP SmartSide, or raw wood.

Why Blaine's Climate Is Tougher on Siding Than It Looks

Salt Air

Homes within a mile or two of the water in Blaine deal with airborne salt that settles on exterior surfaces and accelerates corrosion of fasteners, flashing, and metal trim. It also draws moisture — salt is hygroscopic, meaning it pulls humidity out of the air and holds it against whatever surface it's sitting on. For siding, that means more time spent damp, which matters a lot for board and batten because of its vertical battens and the seams behind them.

Driving Rain and Wind

Blaine gets exposed to wind-driven rain coming straight off open water, with fewer windbreaks than you'd find in more sheltered parts of the county. Driving rain doesn't just wet a wall — it pushes water horizontally into laps, seams, and any gap in the water-resistive barrier. Board and batten has more vertical seams than lap siding, so the quality of the water management behind the boards matters more here than it does on a standard lap job.

Moss and Sustained Dampness

Long stretches of overcast, damp weather let moss and algae establish on north-facing walls, under eaves, and anywhere airflow is restricted — which includes the narrow gaps behind battens if they're not detailed correctly. Moss holds moisture against the substrate and, over years, that constant dampness is what breaks down siding that wasn't built to shed water fast.

What Correct Board & Batten Construction Actually Requires

Board and batten looks simple — vertical boards with a batten strip covering each seam — but the assembly behind that look is what determines whether it lasts 10 years or 40 in a place like Blaine.

• A continuous water-resistive barrier behind the siding, lapped correctly top-to-bottom and sealed at every penetration.
• A rainscreen gap (furring strips creating a drainage space) so any water that gets behind the boards can drain and the wall can dry — this matters more in Blaine's damp, salt-heavy air than almost anywhere else in the county.
• Correct fastener spacing and type — stainless or coated fasteners rated for coastal exposure, not standard galvanized, which corrodes faster near salt air.
• Batten placement over real structure so the fastening pattern is sound, not just cosmetic.
• Flashing at every horizontal transition — window heads, trim boards, roof lines — since board and batten's vertical lines create more edges where water can find a way in if flashing is skipped or shortcut.
• Factory-finished material so the board's face and cut edges are already sealed against moisture before they ever go on the wall.

Skip any one of these and you don't necessarily see a problem in year one. You see it in year six or seven, as trapped moisture starts working on the substrate from behind — by which point it's a repair job, not a touch-up.

Why We Install James Hardie — Not Vinyl, Not LP, Not Raw Wood

We standardized on James Hardie fiber cement for every home we side, including board and batten in a coastal environment like Blaine, for reasons that come down to how each material actually behaves once it's on a wall near the water.

Material	How it holds up in Blaine's conditions
Vinyl board and batten	Can warp or distort in temperature swings and doesn't hold paint if you ever want a color change; seams and battens are often just overlapping vinyl profiles rather than true water-managed assembly.
LP SmartSide (engineered wood)	Wood-based substrate is more sensitive to sustained moisture exposure than fiber cement; edges and cut ends need diligent field-sealing, which is a hard standard to hold on a job with this many vertical seams.
Raw or primed cedar	Real wood grain looks great initially but requires ongoing refinishing and is the most vulnerable of the group to the moss, mildew, and constant dampness that Blaine's climate produces.
James Hardie fiber cement	Non-combustible, dimensionally stable, factory-applied ColorPlus finish resists fading and doesn't require field painting; engineered HZ product lines are built for the Pacific Northwest's wet, coastal conditions.

None of the alternatives are junk products — vinyl, LP, and cedar all have legitimate uses and plenty of homes wearing them just fine in drier or more sheltered locations. But for board and batten specifically, in a salt-air, high-rain coastal town like Blaine, the trade-offs stack up against them: more field sealing required, more sensitivity to trapped moisture, more long-term maintenance to keep ahead of moss and weathering. Hardie's fiber cement composition and factory finish take those variables off the table, which is why it's the only product we put on a wall.

Our Process for a Blaine Board & Batten Project

1. On-site assessment — we look at sun exposure, prevailing wind and rain direction, proximity to the water, and the condition of the existing wall assembly before recommending anything.
2. Tear-off and inspection — old siding comes off and we check the sheathing underneath for any moisture damage that needs addressing before new material goes up.
3. Water-resistive barrier and rainscreen installation — this is the step that actually determines longevity, and it's non-negotiable on our jobs regardless of budget.
4. Flashing at every transition — windows, doors, trim, roof lines — detailed for driving rain, not just a light drizzle.
5. Hardie board and batten installation — factory-finished boards and battens installed to manufacturer fastening specs, with coastal-rated fasteners.
6. Final walkthrough — we go over the finished job with the homeowner and point out anything worth knowing for future upkeep.

What a Board & Batten Job in Blaine Typically Costs

Pricing depends on the size and complexity of the home, how much of the existing wall assembly needs repair, and how much trim and detail work the job involves. Board and batten generally runs a bit higher in labor than plain lap siding because of the extra battens and fastening steps, but it's a modest premium, not a dramatic one. Coastal-zone homes near Blaine's waterfront sometimes carry slightly higher costs if the existing sheathing shows moisture damage that needs correcting before new siding goes on — which is exactly why the tear-off inspection step matters. We'll always give you a real number after we've actually looked at the house, not a guess over the phone.

Signs Your Current Siding Is Already Losing the Battle

• Soft or spongy spots when you press on the wall, especially near the bottom courses or under windows
• Persistent moss or dark staining that returns quickly after cleaning
• Visible gaps or separation at seams and corners
• Paint or finish that's peeling, bubbling, or chalking heavily
• Any musty smell in rooms along an exterior wall

Any of these on a home in or near Blaine is worth a look sooner rather than later — coastal moisture problems tend to accelerate once they start, rather than staying static.

Why a Crew That Already Works Blaine Matters

Board and batten done right in Blaine isn't a different set of tools than board and batten anywhere else — it's the same assembly, held to a stricter standard because the climate gives you less room for error. A crew that already works this stretch of Whatcom County knows to size up salt exposure and prevailing wind direction before the first board goes up, knows which details tend to get skipped by installers who normally work drier inland jobs, and isn't guessing at how much rainscreen ventilation a given wall actually needs. That local pattern recognition is worth more than it sounds like on paper — it's the difference between a job that looks right on day one and one that's still performing at year fifteen.

If you're considering board and batten siding for a home in Blaine, we're happy to come take a look and walk you through what your specific house needs. There's no pressure and no cost to get an honest estimate — just a straight assessment from a crew that already knows this coastline.