Ferndale Siding Board & Batten Siding, Built for Blaine's Coastline
Blaine sits right on the water at the northern edge of Whatcom County, close enough to the Salish Sea that salt air, wind-driven rain, and a long stretch of gray, damp months are simply part of owning a home here. Board and batten siding has become a popular choice in this area because of how it looks — clean vertical lines, strong shadow detail, a farmhouse-meets-coastal character that suits both older homes and new builds. But looks aside, board and batten is also a siding style that lives or dies by how well it's installed, and coastal exposure makes the margin for error smaller than it is a few miles inland.
This page covers what board and batten siding needs to hold up specifically in Blaine's climate, what a correct installation actually involves, and why we install it exclusively in James Hardie fiber cement rather than the wood or vinyl versions of the same look.
What Board and Batten Siding Actually Is
Traditional board and batten is wide vertical boards with narrow battens covering the seams between them. In fiber cement, the same look is achieved two ways: true board and batten (individual vertical planks with separate battens fastened over the joints) or a single-panel vertical system with battens applied over a continuous panel for a cleaner, more uniform reveal. Both give you the vertical board and batten aesthetic; the panel approach reduces the number of seams that need to be sealed and maintained, which matters more in a wet climate than it does somewhere dry.
Board and batten is most often used in Blaine as a full-house siding choice on newer construction, as an accent on gables and dormers, or to update the street-facing elevation of an older home without redoing every wall. All three uses show up regularly in this part of Whatcom County.
What Blaine's Climate Demands From This Siding
Salt Air and Fastener Corrosion
Homes near the water in Blaine sit in a mild salt-air environment even when they're not directly on the shoreline — moisture carries. Salt-laden moisture accelerates corrosion on fasteners, flashing, and trim hardware that wouldn't be an issue on a home twenty miles inland. Board and batten has more exposed fastening points than lap siding because of the battens themselves, so fastener choice and placement matter more here, not less.
Driving Rain
Storms coming off the water in this area tend to push rain sideways rather than straight down, which means siding here has to shed wind-driven water, not just rain falling vertically. Every seam, joint, and butt end on a board and batten wall is a potential entry point if it isn't lapped, caulked, and flashed correctly. Vertical siding actually has an advantage here — water runs down the face rather than pooling on a horizontal lap — but only if the underlying weather barrier and joint detailing are done right.
Moss and Sustained Dampness
Whatcom County's moss season runs long, and north-facing or shaded walls in Blaine can stay damp for weeks at a stretch during the fall and winter. Siding material and finish quality determine whether that dampness just sits on the surface or starts working its way into the substrate. This is one of the biggest reasons we don't install wood or engineered wood board and batten in this area — moisture-sensitive materials in a climate like this need constant vigilance to avoid swelling, softening, or fungal growth at seams and cut edges.
What a Correct Installation Involves
Board and batten siding fails less often because of the material and more often because of installation shortcuts — wrong fastener spacing, missing rainscreen gap, caulk used to cover a gap instead of proper flashing. On a coastal job in Blaine, we treat these as non-negotiable:
- A drainable weather-resistive barrier behind the siding, not just felt or house wrap alone
- A furring strip or rainscreen gap so incidental moisture behind the siding can drain and dry instead of sitting against the wall sheathing
- Corrosion-resistant fasteners rated for the coastal exposure, placed per manufacturer spec — not "close enough"
- Proper flashing at every window, door, and horizontal transition, installed before the siding goes on, not caulked after
- Correct batten spacing and fastening so panels can expand and contract without cracking the finish
- Factory-finished color (not field-painted) at cut ends sealed per manufacturer instructions
- Kick-out flashing at roof-to-wall intersections, which is one of the most commonly skipped details on vertical siding jobs
None of this is exotic. It's standard practice done consistently, which is exactly where a lot of siding jobs quietly fall short.
Why We Install Only James Hardie Board and Batten
We don't install LP SmartSide, vinyl board and batten, Cemplank, Allura, or primed wood versions of this style. That's a deliberate standard, not an oversight. Vinyl board and batten can warp or become brittle with the temperature swings and UV exposure of a full Pacific Northwest year, and its seams rely heavily on the installer's caulking rather than a factory-engineered joint. Wood and engineered wood versions require ongoing paint and sealant maintenance to keep moisture out of end grain and seams — maintenance that's harder to keep up with in a climate where damp weather runs a good part of the year.
James Hardie's fiber cement products are non-combustible, dimensionally stable across wet and dry cycles, and available in the HZ5 formulation engineered for the Pacific Northwest's freeze-thaw and moisture patterns. The ColorPlus factory finish is baked on under controlled conditions, which means better fade and moss resistance than a field-applied paint job, and it comes with a stronger, transferable warranty backing than what you typically get with primed or vinyl products. For a siding style that depends on seams and joints holding up over decades near saltwater, that combination is why Hardie is what we put on Blaine homes.
Board and Batten Options: A Comparison
| Material | Coastal Moisture Resistance | Maintenance Burden | Typical Lifespan |
|---|---|---|---|
| James Hardie fiber cement (our standard) | Strong — engineered HZ5 line, factory finish | Low — occasional wash, no repainting for years | Decades with proper install |
| Vinyl board and batten | Moderate — seams rely on caulk, can warp with heat/cold cycling | Low, but limited repair options if damaged | Variable, shorter in harsh exposure |
| Primed wood / engineered wood | Weak in sustained damp conditions without upkeep | High — repainting, sealing cut ends and joints | Shorter unless maintenance is consistent |
Our Process for Blaine Board and Batten Projects
When we quote a board and batten job in Blaine, we walk the exterior first and look specifically at exposure — which walls take the worst of the wind-driven rain, which stay shaded and damp longest, and where the existing flashing or trim is already showing wear. That inspection shapes the install plan more than the general spec sheet does. From there, the sequence is straightforward: remove old siding and inspect the sheathing for hidden moisture damage, install or verify the weather-resistive barrier and rainscreen gap, install James Hardie panels and battens to spec with corrosion-resistant fasteners, detail flashing at every penetration and transition, and do a final walk-through before cleanup. We give you a written estimate before any work starts — no surprise change orders for details that should have been scoped up front.
Why Hiring a Crew That Already Works Blaine Matters
A contractor based well inland can install Hardie siding correctly by the book and still miss the details that matter specifically on the coast — how much more aggressive fastener corrosion is near saltwater, which elevations in this specific area take the worst of the storms coming off the water, or how long moss actually sits on a shaded wall through a Whatcom County winter. We work this area regularly, which means we're not guessing at exposure conditions or relearning local permitting and inspection expectations on your job. That familiarity shows up in fewer callbacks and a siding job that's set up to handle what this specific coastline throws at it, not just what a general spec sheet assumes.
Maintenance After Installation
Correctly installed Hardie board and batten in Blaine is low-maintenance, not no-maintenance. Plan on an annual rinse to knock off salt residue and organic growth before it takes hold, a periodic look at caulking around windows and trim (caulk is the one component that does wear out over time, even on a well-built job), and prompt attention if you ever notice a soft spot, staining, or a fastener working loose. Catching small issues early is far cheaper than dealing with hidden moisture damage later.
If you're weighing board and batten for a home in Blaine, we're happy to walk the exterior with you, talk through what your specific exposure calls for, and give you a straightforward, no-pressure estimate. There's a form below to get that conversation started.