Board & Batten Siding for the Cordata Area
Cordata sits in that stretch of north Whatcom County where newer subdivisions, small commercial corridors, and older farmhouse-style lots all end up neighbors, and it shows in the range of homes we get called out to see there. Board and batten fits a lot of that stock well — it reads as clean and modern on newer builds and as classic farmhouse on older ones, which is part of why it's become one of the more requested siding profiles in this part of our service area over the last several years. What doesn't change from house to house is the climate those boards and battens have to survive: salt-tinged marine air drifting in off the Sound, wind-driven rain that hits walls sideways instead of straight down, and a moss season that can run most of the year on shaded or north-facing exposures. Board and batten isn't just a look on top of a wall — it's a joint pattern, and every vertical seam between a board and its batten is a spot water can try to work its way in. In a climate like this one, how that joint is built matters as much as which siding brand ends up on the invoice.
We install James Hardie fiber cement board and batten exclusively for homes in Cordata and across the rest of our Ferndale-area service territory, and we build every seam, fastening pattern, and flashing detail around what this specific climate does to a wall over ten, twenty, and thirty years — not around what looks good on the day the crew packs up.

What This Climate Asks of a Board & Batten Wall
Wind-Driven Rain Against Vertical Seams
Rain in this part of Whatcom County rarely falls straight down. Wind pushes it sideways into wall assemblies, and a vertical profile with battens running the full height of a wall gives that wind-driven rain a lot of joint length to work against. A batten that's face-nailed with no room to move, or caulked shut instead of properly lapped and back-primed, turns into a wick that pulls moisture toward the fastener line instead of shedding it.
Salt Air and Fastener Corrosion
Homes throughout this area get a steady dose of salt-laden air moving in off the water, even set back some distance from the shoreline, and that air is hard on any exposed metal. Board and batten uses more fasteners per square foot than a standard lap profile, since both the boards and the battens each need to be secured, so getting the fastener spec right — corrosion-resistant, correctly sized, correctly spaced — carries more weight on this profile than on most others.
Moss and Trapped Moisture Behind Battens
Cordata has no shortage of mature trees and shaded lots between the newer developments, and shaded, north-facing walls hold dampness longer than sun-exposed ones. That dampness is exactly what moss and mildew need to establish themselves. A batten set tight against a board with no room to breathe traps that moisture right where it can't dry out, which is a slow, quiet path toward seam staining, softened substrate, and paint failure that shows up years after installation, not months.
Why Product Choice Matters More on This Profile
Board and batten amplifies whatever weaknesses a siding material already has, simply because it has more seams and more exposed edge than a standard lap wall. That's part of why we don't offer LP SmartSide, vinyl, Cemplank, Allura, primed spruce, or cedar board and batten. Those are legitimate products, and other contractors install them competently — but on a profile with this many joints, in a climate this consistently wet and salt-exposed, we made the call to stand behind one system we trust completely rather than offer a lower-cost option that quietly shifts maintenance risk onto the homeowner down the road.
| Material | Behavior at Batten Seams | Maintenance in This Climate | Realistic Lifespan |
|---|---|---|---|
| James Hardie fiber cement | Dimensionally stable; doesn't swell or cup at the joint | Low; factory finish resists moss and fading | 30+ years with proper install |
| LP SmartSide (engineered wood) | More sensitive to moisture at cut edges and fastener holes | Moderate; edge sealing needs ongoing upkeep | 15-25 years, climate-dependent |
| Vinyl | Can warp or gap at battens with temperature swings; seams less rigid | Low, but hidden moisture problems are hard to catch | 20-30 years, variable |
| Cedar | Absorbs moisture readily at every seam without regular sealing | High; repainting or resealing on a recurring cycle | 15-25 years with consistent upkeep |
James Hardie's fiber cement core doesn't expand and contract with moisture the way wood-based products do, which is the exact property that matters most on a profile built almost entirely out of vertical seams. The factory-applied ColorPlus finish also means the cut edges we prime on site are the exception, not the rule, unlike field-painted materials where every board face depends on how well the paint job holds up outdoors year after year.
What a Correct Board & Batten Install Actually Involves
The finished look of board and batten is simple — vertical boards, battens over the seams — but a correct install has a lot more happening behind that surface than most other siding profiles:
- House wrap or weather-resistive barrier installed and lapped correctly before any siding goes up
- A drainage gap or rainscreen behind the siding so any moisture that gets past the surface can dry out instead of sitting against the wall
- Boards fastened with corrosion-resistant fasteners at the manufacturer's specified spacing, not just "enough to hold it up"
- Battens set with the clearance Hardie's installation spec calls for, rather than caulked tight, so the wall can shed water instead of trapping it
- Properly flashed and lapped transitions at windows, doors, corners, and the base of the wall, where a vertical profile meets horizontal surfaces
- Factory-cured ColorPlus finish preserved by cutting boards face-down and priming any field-cut edges before they go on the wall
Skip any one of these steps and the wall can still look correct for a year or two. The problems that show up when they're skipped — staining at seams, soft spots near the base, paint failure along the battens — take a few wet seasons to surface, which is exactly why a corner-cutting install can get away with it right up until the homeowner is the one dealing with the consequences.
Our Process for a Cordata Board & Batten Project
Walkthrough and Assessment
We start by looking at your specific walls — which ones take weather head-on, which are shaded and slower to dry, and whether the existing wall assembly already has moisture issues that need addressing before new siding goes up. Board and batten over a wall with hidden rot or inadequate drainage just buries the same problem under new material.
Detailing the Plan Before Install Day
We work out batten spacing, corner details, and how the siding will meet windows, trim, and rooflines before crews start cutting material. On a profile with this many seams, settling those details on paper first heads off field improvisation, which tends to be where corners get cut on a rushed job.
Installation to Manufacturer Spec
Every fastener, gap, and flashing lap follows James Hardie's published installation requirements for this climate zone, not a generic national standard. That's part of what keeps the manufacturer's warranty intact, and part of why the wall performs the way it's supposed to for decades instead of a handful of years.
Final Walkthrough
We walk the finished job with you, cover what maintenance actually looks like for board and batten (there's very little with this material, but it's worth knowing what to look for), and make sure you know what a healthy wall looks like if you ever want to check it yourself down the line.
Why Hire a Crew That Already Works Cordata
Board and batten rewards familiarity with a specific climate in a way a lot of siding profiles don't, because the failure points are subtle and slow to show up. A crew that's installed this profile across the Cordata and Ferndale area through multiple wet seasons has already seen which orientations need extra attention because of tree shade and lot layout, how much clearance a batten actually needs in a climate this damp versus what a generic install guide suggests, and where a rainscreen gap earns its keep versus where it's optional. That kind of judgment doesn't show up on a spec sheet. It's the difference between a board and batten wall that still looks and performs the same in fifteen years and one that's showing seam staining by year five.
Cost Factors for Board & Batten in This Area
Board and batten typically costs more per square foot than standard lap siding, mainly because of the added material — battens on top of boards — and the extra labor involved in fastening and detailing two layers instead of one. Beyond the base material, a few things move the price on a given Cordata-area home:
| Factor | Why It Matters |
|---|---|
| Wall height and complexity | More corners, dormers, and transitions mean more cuts and flashing details |
| Existing wall condition | Rot or moisture damage found during tear-off needs repair before new siding goes up |
| Batten spacing and reveal | Tighter spacing uses more material and more fastening labor |
| Trim and window detailing | More openings mean more flashing and finish work around each one |
| Tree cover and access | Mature landscaping common in this area can add setup and cleanup time |
We'll walk your specific home and give you real numbers rather than a rough estimate off square footage alone — two houses with similar footprints can land at very different board and batten costs depending on how many of these factors are actually in play.
Getting It Right the First Time
Board and batten is not a forgiving profile to redo. Because the battens cover the seams between boards, correcting a bad install usually means pulling battens, boards, or both, rather than a simple patch job. That's part of why we treat the planning and detailing phase of these projects as seriously as the install itself — the cost of getting it right the first time is a lot lower than the cost of tearing out a wall that was installed wrong and doing it again.
If you're weighing board and batten for a home in the Cordata area, we're happy to walk the property, talk through what your specific walls need given their orientation and exposure, and give you a straightforward, no-pressure estimate. There's a form below — reach out and we'll set up a time to take a look.
Ferndale