Bellingham Siding Board & Batten Siding, Done Right, for Columbia
Columbia is one of the older, closer-in neighborhoods in Bellingham, and it shows in the housing stock — a mix of early-1900s homes, mid-century infill, and newer builds shoulder to shoulder along streets that sit close to the water. That proximity to Bellingham Bay is exactly why board and batten siding either performs beautifully here for decades or fails early, with very little in between. The vertical board and batten look is a natural fit for the neighborhood's older bungalow and farmhouse-adjacent architecture, but the material behind that look matters more in Columbia than almost anywhere else in Whatcom County.
We install board and batten siding for homeowners throughout Columbia using James Hardie fiber cement exclusively. This page walks through what that actually means for a home in this specific part of Bellingham — not board and batten in general, but board and batten sited a few blocks from salt water, under a marine cloud layer, in a climate that stays damp for a good six months of the year.
What Columbia's Climate Actually Does to Board and Batten
Board and batten siding has more vertical seams and more exposed board edges per square foot than lap siding, which is part of its charm — and part of the risk. Every batten strip and every board edge is a place where water can find a way in if the material or the install is wrong. In Columbia specifically, three things stack up against that vulnerability:
Salt Air
Homes closer to Bellingham Bay take on a steady drift of salt-laden air. Salt accelerates the breakdown of paint films, corrodes fasteners, and speeds up wood decay at cut edges and seams. Wood-based board and batten — real cedar or engineered wood — is especially exposed here because the very edges the batten strips are meant to protect are also where end-grain soaks up moisture fastest.
Driving Rain
Bellingham's storms don't just fall straight down — wind off the bay pushes rain sideways into wall assemblies, and vertical siding patterns give that wind-driven rain more of a path to travel down and behind the boards if flashing and lap details aren't handled correctly. A batten system that isn't fastened, flashed, and gapped to spec will let water track behind the boards long before it ever shows on the surface.
Long Moss Season
Shade from mature trees, persistent damp, and mild temperatures give moss and algae a long runway on north- and west-facing walls in Columbia — often eight or nine months of active growth. Moss holds moisture directly against the siding surface. On a material that can absorb or swell with sustained dampness, that's a slow, steady path to rot. On a material engineered to resist it, moss is a cosmetic nuisance you rinse off, not a structural threat.
Why We Only Install James Hardie for This Application
Board and batten is not a forgiving style if the underlying material is wrong for the climate. We don't install vinyl board and batten, primed spruce, cedar, LP SmartSide, or other engineered wood products for this look — not because those products have no merits, but because a Columbia home puts every weak point they have under steady stress at once.
- Wood and engineered wood board and batten rely on paint and sealant to keep moisture out of end grain and seams. In a climate this consistently damp, that maintenance schedule is unforgiving — miss a repaint cycle by even a year or two and edges start to swell or soften.
- Vinyl board and batten sheds water well but flexes with temperature swings and wind, opening gaps at seams over time, and it doesn't hold paint if a homeowner ever wants to change the color.
- James Hardie fiber cement is non-combustible, dimensionally stable in swings between damp cold and summer heat, and doesn't feed moss or mold the way wood-based products can. It ships with a factory-applied ColorPlus finish engineered to hold color and resist the exact kind of coastal fading and streaking that salt air and moss cause.
We standardized on Hardie because it's the one system we can install once, flash correctly, and warranty with confidence — on a style of siding that has very little tolerance for a wrong material choice.
What a Correct Board & Batten Install Actually Involves
The finished look — evenly spaced vertical boards with battens covering the seams — hides most of the work that determines whether it lasts. On a Columbia home, we pay particular attention to:
Weather-Resistive Barrier and Flashing
A proper water-resistive barrier goes on before any board touches the wall, with head flashing above every window and door and z-flashing at any horizontal transition. This is the layer that catches whatever wind-driven rain gets past the siding face — it matters more on a vertical pattern than a horizontal one.
Fastening and Gapping
Hardie board and batten needs to be fastened per manufacturer spec — correct fastener type, correct penetration into framing or proper furring, and the right gap at board ends to allow for expansion without opening a gap for water. Salt air will corrode the wrong fastener within a few years; we use fasteners rated for the exposure.
Rainscreen Detailing
On homes closer to the bay or in more exposed spots, we'll often recommend a furred-out rainscreen gap behind the siding. That air gap lets any moisture that does get behind the boards drain and dry instead of sitting against the wall sheathing — a meaningful upgrade in a climate with this much sustained dampness.
Caulking and Sealant Points
Board and batten has real seams at trim, corners, and penetrations that need the right sealant, applied correctly, not just caulked over as a finishing step. We treat this as part of the install, not an afterthought.
Our Process for Columbia Projects
- On-site assessment: We look at sun exposure, proximity to the bay, existing moss or moisture staining, and the condition of the current siding and wall assembly before quoting anything.
- Material and color selection: We walk through Hardie's board and batten profiles and ColorPlus options against the home's style and the neighborhood's mix of older and newer construction.
- Tear-off and wall inspection: Old siding comes off and we inspect sheathing for any hidden rot before covering it back up — this is often where problems from a prior install surface.
- Barrier, flashing, and rainscreen install: The water management layer goes in first, correctly, before a single board goes up.
- Board and batten installation: Fastened and gapped to manufacturer spec, with attention to every seam, corner, and penetration.
- Final inspection and cleanup: We walk the job with the homeowner before calling it done.
Cost Factors for Board & Batten in This Neighborhood
Every Columbia job is different, but the same handful of factors drive most of the price variation we see in this neighborhood:
| Factor | Why It Matters Here |
|---|---|
| Existing wall condition | Older Columbia homes sometimes hide moisture damage under prior siding that needs repair before new boards go on |
| Proximity to the bay | Homes closer to the water often get upgraded flashing and rainscreen detailing, which adds labor |
| Board and batten profile | Wider battens and custom reveals take more layout and cutting time than a standard spacing |
| Trim and detail work | Corners, window surrounds, and transitions are labor-intensive relative to the square footage they cover |
| Access and site conditions | Tight lots and mature landscaping common in Columbia can slow staging and scaffolding |
A Quick Checklist Before You Hire
Whoever you hire for board and batten in Columbia, make sure the bid answers these:
- Is the water-resistive barrier and flashing plan specified, not just assumed?
- Is a rainscreen gap included or at least discussed for exposure to the bay?
- Are fasteners rated for coastal/salt-air exposure?
- Is the material James Hardie fiber cement, with ColorPlus factory finish, or something else — and do you know why?
- Does the crew have experience specifically with vertical board and batten, not just lap siding?
- Is the warranty transferable if you sell the home?
Why a Crew That Already Works Columbia Matters
Board and batten forgives almost nothing when it's installed wrong, and it takes noticeably longer to install correctly than lap siding — more layout, more cuts, more seams to detail. A crew that has already worked this neighborhood knows which walls face the weather worst, where moss builds up fastest, and how close to the water a rainscreen upgrade earns its keep. That's not a generic Whatcom County answer — it's specific to how Columbia sits relative to the bay and the tree cover on its streets. Getting that judgment right the first time is the difference between board and batten siding that looks sharp for thirty years and a job that needs rework in five.
If you're weighing board and batten for a home in Columbia, we're happy to walk the property with you, look at your specific exposure, and put together a straightforward, no-pressure estimate — just fill out the form below to get started.