Bellingham Exterior Board & Batten Siding in Ferndale: Built for a Different Kind of Weather
Ferndale sits low and close to the water, tucked near Bellingham Bay and the Nooksack River delta in Whatcom County. That location gives homes here a specific set of weather problems that a siding contractor working thirty miles inland never has to think about. Salt-laden air moves in off the water, wind-driven rain hits walls at an angle instead of falling straight down, and the long gray stretch of fall through spring keeps north-facing surfaces damp long enough for moss and algae to take hold. Board & batten siding can look excellent on the farmhouse, craftsman, and modern homes common in and around Ferndale — but only if it's installed with this specific climate in mind, not installed the same way it would be in a dry inland town.
What Board & Batten Siding Actually Is
Board & batten is a vertical siding pattern: wide flat boards installed side by side, with narrower strips (the battens) covering the seams between them. It creates strong, clean vertical lines that read very differently from traditional horizontal lap siding. The style has deep roots in agricultural buildings — barns, granaries, and farmhouses were finished this way because it was simple, durable, and shed water reasonably well when done right.
Why It Fits Ferndale's Architecture
Ferndale and the surrounding farmland retain a lot of that agricultural building character, and board & batten reads as a natural fit on homes with gabled rooflines, porches, and simple massing. It also pairs well as an accent — a gable end, a dormer, or a porch feature — against horizontal siding on the rest of the house, which is a common request we get from homeowners who want texture without committing to an all-vertical exterior.
What This Climate Does to Vertical Siding
Salt Air and Fastener Corrosion
Homes closer to Bellingham Bay and the Strait of Georgia deal with airborne salt that accelerates corrosion on anything metal — fasteners, flashing, trim caps. On a board & batten wall, the battens themselves are usually face-nailed, which means more exposed fastener heads than a lap siding job. If those fasteners aren't corrosion-resistant and properly set, you get rust streaking and eventual fastener failure well before the siding itself would ever need replacing.
Driving Rain and Seam Design
Vertical siding has more seams running the direction water actually wants to travel — down the wall, straight through any gap that isn't sealed or lapped correctly. Combine that with wind off the water pushing rain sideways into the wall, and any shortcut in flashing or batten spacing shows up as a leak far sooner than it would on a calmer, drier site.
Moss and Prolonged Dampness
Whatcom County's long wet season means north- and west-facing walls can stay damp for days at a stretch. Moss and algae don't just look bad — sustained moisture against a wall surface is exactly the condition that causes problems for siding materials that aren't dimensionally stable or that absorb water into their core.
What a Correct Installation Involves
A board & batten job that's going to hold up here needs more attention than the finished product suggests. The parts that matter most are the ones you can't see once the boards are up.
- A weather-resistive barrier installed and lapped correctly behind the siding, with every seam and penetration sealed before boards go on
- A rain screen gap — furring strips that hold the siding off the sheathing so water that gets behind the surface can drain and air can dry the cavity out
- Flashing at every horizontal transition: window and door heads, the base of the wall, roof-to-wall intersections
- Corrosion-resistant fasteners set to manufacturer spec, not just "close enough," especially given the added exposure near the water
- Batten spacing and fastening that accounts for the material's expansion and contraction through wet winters and drier summers
- Fully sealed and painted (or factory-finished) cut edges and joints — an unsealed cut edge is the single most common failure point on any fiber cement job
Why We Only Install James Hardie for This
Board & batten can be built from plywood, engineered wood, vinyl panels, or fiber cement. We install James Hardie exclusively, and on a vertical siding application in this climate the reasons matter more than usual. Fiber cement doesn't absorb water into its core the way wood-based panels can, it won't warp or cup along those long vertical boards the way engineered wood sometimes does after repeated wet-dry cycles, and it holds paint and factory finish far longer under the kind of driving rain and salt exposure Ferndale sees. It's also non-combustible, which matters given how common wildfire smoke and regional fire risk have become across the Pacific Northwest even in wetter counties.
| Option | How It Handles This Climate | Why We Don't Use It |
|---|---|---|
| Vinyl vertical panels | Won't rot, but flexes and can distort in wind and temperature swings | Limited board profiles, visible seams, can't achieve a true board & batten look |
| Engineered wood panels | Reasonable moisture resistance if perfectly maintained | Core swelling at cut edges and fastener points if any moisture gets in |
| Primed spruce / cedar boards | Traditional look, but wood moves with humidity and needs ongoing upkeep | Higher long-term maintenance burden in a wet, salt-air climate |
| James Hardie fiber cement | Dimensionally stable, factory-finished, engineered for Pacific Northwest moisture | This is what we install |
Product Options for a Board & Batten Look
Within the Hardie system there are a couple of ways to get a board & batten result, and which one fits depends on the home. HardiePanel vertical siding with HardieTrim battens over the seams is the most common approach and gives the classic wide-board-and-narrow-batten pattern efficiently. For homes wanting a slightly different proportion or a more custom look, individual Hardie boards can be installed with battens the same way a traditional wood board & batten wall would be built. Both come available with ColorPlus factory finish, which matters here — a factory-baked finish holds up to driving rain and salt air noticeably better than field-applied paint over time.
Our Process for a Ferndale Board & Batten Project
- On-site assessment: we look at wall orientation, existing moisture damage, current sheathing condition, and which elevations take the worst weather
- Tear-off and sheathing inspection: old siding comes off and we check for rot or damage before anything new goes on — this step catches problems that get hidden if skipped
- Weather barrier and rain screen installation: the moisture management layer goes in first, correctly lapped and sealed
- Panel, board, and batten installation to manufacturer spec, with corrosion-resistant fasteners and correct spacing for expansion
- Flashing and sealant at every window, door, and penetration
- Final caulking, touch-up, and a walkthrough so you know exactly what was done and why
Maintaining Board & Batten Siding in a Moss-Prone Climate
Correctly installed Hardie board & batten is low-maintenance, not no-maintenance. A few habits go a long way in a climate like this one:
- Rinse the exterior annually, paying extra attention to north- and west-facing walls where moss and algae take hold first
- Keep gutters and downspouts clear so runoff isn't sheeting down the wall face during heavy rain
- Trim back vegetation and tree cover that keeps a wall section shaded and damp longer than the rest of the house
- Check caulking around battens, trim, and penetrations every year or two and touch up before small gaps become moisture entry points
- Watch for any early rust streaking at fastener heads — it's easier to address early than after it's stained the finish
Why a Crew That Already Works Ferndale Matters
A lot of siding problems in this area don't come from bad material — they come from installation details that were fine for a drier, calmer site and not fine for a wall that takes wind-driven rain off the water for half the year. A crew that regularly works Ferndale and the rest of Whatcom County already knows which elevations on a given lot take the worst of it, how local wind patterns push rain into vertical seams, and what Whatcom County's permitting and inspection process expects. That's the difference between a board & batten installation that looks good for one dry summer and one that's still performing correctly a decade of wet winters later.
If you're considering board & batten siding for a home in Ferndale, we're happy to walk the property, look at what your walls are actually dealing with, and put together a straightforward, no-pressure estimate — just fill out the form below.