Is board and batten harder to get right than standard lap siding?

Yes — the vertical seams and batten joints give water more entry points, so it depends more heavily on correct rain screen, flashing, and fastener choices behind the finish. A crew cutting corners on those layers can produce a wall that looks fine for a year or two before problems surface.

What should I ask a Blaine-area contractor before hiring them for board and batten?

Ask whether they install a rain screen behind the siding, what fastener spec they use given the salt air exposure near the bay, and whether they've pulled permits in Whatcom County before. Ask to see how they handle flashing at windows, doors, and horizontal transitions specifically.

Why do you only install James Hardie for board and batten instead of LP SmartSide or vinyl?

We standardized on Hardie fiber cement because of how it handles sustained moisture and coastal exposure over the long run, with a factory finish that reduces repainting. Wood-based and vinyl alternatives have their place, but they carry trade-offs in moisture behavior or maintenance that we didn't want to put on Blaine homes.

Does James Hardie sell a single board and batten panel, or is it built from separate pieces?

Hardie builds the look from vertical Hardie panel or plank siding with matching Hardie trim boards installed as the battens over the joints. They're engineered as one system so the field material and trim expand and finish consistently over time.

Does being this close to the Canadian border and Semiahmoo Bay actually change how the siding is installed?

Yes — walls exposed to wind off the bay deal with more salt-laden air and driving rain than a sheltered inland wall, which is why we pay close attention to fastener corrosion resistance and flashing detail on those elevations. It's also why long-term moss control matters more on shaded sides of Blaine homes.

Board & Batten Siding in Blaine Near Ferndale, WA

Board & Batten in a Salt Air, High-Rain Climate

Board and batten has become one of the most requested siding styles in Blaine — it reads as clean, modern farmhouse, or classic Pacific Northwest coastal, depending on trim and color choices. It's also a style that punishes a sloppy install faster than horizontal lap siding does. The vertical seams, the batten-over-board joints, and the exposed corners give water more places to find a way in, and Blaine's location right on Semiahmoo Bay near the Canadian border means those joints deal with a tougher mix of salt-laden wind, driving rain, and long stretches of damp shade than most inland installs ever see.

We install board and batten in Blaine and the surrounding Ferndale and Whatcom County area regularly, and this page covers what actually matters here: what the climate does to vertical siding over time, what a correct installation looks like underneath the finish, and how our process is built around this specific style in this specific place.

What Blaine's Climate Does to Vertical Siding

Salt Air and Fasteners

Homes near Semiahmoo Bay and Drayton Harbor sit close enough to saltwater that airborne salt reaches siding, trim, and — critically — the fasteners holding it all on. Standard fasteners can corrode faster in this exposure, and on board and batten, the battens are often through-fastened close to the joint line. A corroding fastener under a batten doesn't just streak the finish; it can loosen the batten and open a water path that's hard to spot from the ground.

Driving Rain on Vertical Joints

Whatcom County gets a lot of rain, and wind off the water can drive it sideways against a wall rather than straight down. On lap siding, gravity and overlap do a lot of the work of shedding that water. On board and batten, the seams run vertically, so the system has to rely on correct batten coverage, sealant only where it belongs, and a drainage plane behind the siding — not just the visible joint — to stay dry.

Moss and Shaded, Damp Walls

Ferndale and Blaine both sit under a long moss season, and north-facing or tree-shaded walls stay damp for extended stretches even between storms. Moss and algae need that sustained moisture to establish, and once they take hold on a vertical board and batten wall, they tend to streak downward from every batten and trim edge, which is far more visible than on a horizontal profile.

What a Correct Board & Batten Job Involves

A good-looking board and batten wall and a correctly built one are not automatically the same thing. The parts that matter are mostly the parts you stop seeing once the job is finished.

A weather-resistive barrier installed and lapped correctly behind the siding, with no gaps at penetrations
A rain screen (drainage gap) so any moisture that gets behind the boards can drain and dry instead of sitting against the sheathing
Fasteners rated for the exposure — this matters more in Blaine's salt air zone than it does further inland
Batten spacing and board width set before install, not adjusted on the fly, so reveals stay consistent across the wall
Sealant used only at manufacturer-specified joints — not as a substitute for proper flashing
Z-flashing at any horizontal transitions, window and door heads, and where the siding meets trim or roofing
Correct clearance at the ground and at roof lines so boards aren't wicking moisture from below

Skip any of those and the wall can still look right for a year or two. The problems that show up after that — soft spots, streaking, a batten that's started to cup or pull away — almost always trace back to one of these steps being rushed or skipped.

James Hardie Board & Batten: How the System Works

We install James Hardie fiber cement exclusively, including for board and batten. Hardie doesn't sell a single molded "board and batten panel" — the look is built from vertical Hardie panel or plank siding with Hardie trim boards installed over the joints as battens, engineered to work together as one system: matched expansion behavior, matched fastening requirements, and a factory-applied ColorPlus finish across both the field boards and the trim.

That matters for consistency. When the vertical field material and the battens come from the same engineered system, they move with temperature and moisture the same way, which keeps joints tight over time instead of opening unevenly as the wood-based alternatives can. Hardie's fiber cement is also non-combustible and doesn't absorb water the way wood-based or wood-fiber sidings do, which is relevant given how much sustained moisture Blaine walls deal with through the wet season.

We don't install LP SmartSide, vinyl board and batten, Cemplank, Allura, or primed wood alternatives. Each of those has legitimate uses elsewhere, but for the moisture load and salt exposure this area sees, we standardized on Hardie because of how it holds up over the long term with less maintenance burden on the homeowner.

What Drives the Cost of a Board & Batten Job

Factor	Why It Matters
Existing siding removal & sheathing condition	Tear-off reveals whether sheathing needs repair before new siding goes on — moisture damage isn't visible until the old siding is off
Wall height and gable complexity	Steep gables and multi-story walls require more staging, more cuts, and more trim detail than a simple single-story wall
Trim and batten density	Board and batten uses more linear trim than lap siding of the same wall area, which adds material and labor
Fastener and flashing spec for exposure	Walls facing prevailing wind and salt air off the bay may need upgraded fasteners and additional flashing detail
Color	Factory ColorPlus finish costs more up front than field-painted trim but avoids a repaint cycle

Our Process for Blaine Board & Batten Projects

On-site assessment — we walk the exterior, check current siding and trim condition, and look for existing moisture or rot issues before quoting anything
Removal and sheathing check — old siding comes off and we inspect what's underneath before anything new goes up; any soft or damaged sheathing gets addressed, not covered over
Weather barrier and rain screen installation — the drainage plane goes in correctly the first time, since it's the layer you won't see again once siding is on
Layout — board and batten spacing is planned across the wall so reveals land evenly at corners and openings, not adjusted mid-install
Hardie panel and batten installation — installed to manufacturer fastening and flashing specs, with exposure-appropriate fasteners
Trim, flashing, and sealant detail — window, door, and roofline transitions get proper flashing; sealant is used only where the system calls for it
Final walkthrough — we go over the finished wall with the homeowner before calling the job done

Why a Crew That Already Works Blaine Matters

Board and batten installed to spec in a mild, sheltered inland yard and board and batten installed on a wind-exposed wall near Semiahmoo Bay are not the same job, even though they use the same material. A crew that regularly works Blaine and the greater Ferndale area already knows which walls take the brunt of the weather off the water, where salt exposure calls for upgraded fasteners, and how much drainage detail a shaded, moss-prone wall actually needs versus one in full sun. That's judgment you build by working the same coastline repeatedly, not something you can fully spec out from a manual alone.

It also matters for permitting and inspection — Whatcom County and the local jurisdictions here have their own process, and a crew that's pulled permits in the area before doesn't lose time relearning it on your project.

Keeping Board & Batten Siding in Good Shape

Rinse walls that stay shaded or tree-covered once or twice a year to slow moss and algae buildup
Keep gutters and downspouts clear so runoff isn't sheeting down over battens and trim
Trim back vegetation that keeps a wall damp or blocks airflow behind plantings
Have caulked joints checked periodically — sealant is a maintenance item, not a permanent fix
Address any soft spots, staining, or loose battens early rather than waiting for a full section to fail

If you're weighing board and batten for a home in Blaine or nearby, we're happy to take a look and walk you through what your specific walls need — no pressure, no obligation. Reach out below for a free estimate.