Bellingham Exterior Board & Batten Siding in Columbia, Bellingham
Columbia is one of Bellingham's older established neighborhoods, sitting close enough to Bellingham Bay that salt-laden air, wind-driven rain, and a long stretch of gray, moss-friendly weather are simply part of owning a home here. Board and batten siding has a strong presence in this part of town — it fits the mix of craftsman bungalows, updated mid-century homes, and newer infill construction that make up Columbia's streets. But board and batten is also one of the least forgiving siding styles to install poorly, and in a climate like Whatcom County's, a poor installation shows up fast as staining, soft spots, and premature paint failure. This page covers what board and batten actually needs to perform here, what correct installation involves, and why we only do it in James Hardie fiber cement.
Why Board & Batten Suits Columbia's Older and Craftsman-Style Homes
Board and batten has deep roots in Pacific Northwest residential architecture, and it reads naturally on the kind of homes common in Columbia — steep-roofed craftsman cottages, farmhouse-influenced remodels, and newer builds going for a clean, vertical-line look. The wide, evenly spaced vertical boards (or panels) with narrow battens covering the seams give a home strong shadow lines and a tailored look that horizontal lap siding doesn't replicate. It also pairs well with gable accents, dormers, and mixed-material facades, which shows up a lot on Columbia's rooflines.
The style choice is aesthetic. The material choice is where the performance actually gets decided.
What Bellingham's Climate Does to Board & Batten Siding
Salt Air and Coastal Moisture
Homes in Columbia are close enough to the water that airborne salt accelerates corrosion on fasteners, flashing, and any metal trim tied into the siding system. Cheap or under-spec fasteners corrode faster here than they would inland, and corroding fasteners loosen boards, crack caulk joints, and let water behind the siding.
Driving Rain
Bellingham doesn't just get rain — it gets rain pushed sideways by wind off the Sound and the Strait. Board and batten siding has more vertical seams per square foot than horizontal lap siding, and every one of those seams is a potential water entry point if the battens, caulking, and underlying drainage plane aren't done correctly. This is the single biggest risk with board and batten in this climate: it's a great-looking system that punishes shortcuts.
Moss and Prolonged Dampness
Whatcom County's long wet season keeps north- and shade-facing walls damp for extended stretches, and that's exactly where moss and algae take hold on siding that doesn't shed water and dry out efficiently. On wood-based or fiber-cement-imitation products, sustained moss growth traps moisture against the surface and accelerates surface breakdown. On a properly installed and properly finished fiber cement system, moss can be washed off without damaging the substrate underneath.
What a Correct Board & Batten Installation Involves
Board and batten looks simple from the street — vertical boards, narrow battens over the seams — but the assembly behind it is what determines whether it lasts 10 years or 40. A correct installation includes:
- A continuous water-resistive barrier installed and lapped correctly behind the siding, with no gaps at penetrations or transitions
- A rain screen or furring strip system that creates an air gap behind the panels, allowing incidental moisture to drain and the wall assembly to dry
- Properly flashed horizontal joints, window and door openings, and any point where the siding meets trim, roofing, or a different material
- Correct fastener type, length, and spacing for the specific panel and batten profile, driven into structural framing — not just sheathing
- Batten placement and fastening that doesn't trap water at the top of each board or create a shelf where debris and moisture collect
- Factory-finished or properly field-finished surfaces with all cut edges sealed before installation, not after
Skip any one of these steps and the siding may look fine for a season or two before problems start appearing at the seams, the fastener heads, or the base of the wall.
Why We Install James Hardie Board & Batten Only
We install James Hardie fiber cement exclusively, and board and batten is one of the clearest examples of why that standard matters. Vertical siding systems live or die on how the material handles moisture at the seams and how stable it stays through wet-dry cycling. James Hardie's board and batten options — including HardiePanel vertical siding with HardieTrim battens, and the Hardie Artisan Vertical Siding line for a more refined, tight-reveal look — are engineered specifically for this kind of exposure:
- Non-combustible fiber cement that doesn't swell, rot, or delaminate the way wood-based or wood-adjacent products can when seams take on moisture
- ColorPlus factory finish on most product lines, which means the color and protective coating are baked on at the factory under controlled conditions — not applied on-site where weather can compromise cure quality
- HZ5 or HZ10 engineered formulations built for Pacific Northwest moisture exposure, rather than a generic all-climate product
- A strong, transferable manufacturer warranty that backs the product when it's installed to Hardie's published specifications
We don't install LP SmartSide, vinyl board and batten, Cemplank, Allura, or primed wood board and batten. Each of those has legitimate uses somewhere, but for the seam-heavy, moisture-exposed board and batten style in a climate like Columbia's, we've made James Hardie our standard because it holds up to the specific combination of salt air, driving rain, and sustained dampness this neighborhood deals with every winter.
Comparing Board & Batten Material Options
| Material | Seam/Moisture Behavior | Finish Durability | Long-Term Maintenance |
|---|---|---|---|
| James Hardie Fiber Cement | Engineered for wet-climate seam exposure; dimensionally stable | Factory ColorPlus finish on most lines, resists fading and chalking | Occasional wash; repaint intervals are long if ever needed |
| Vinyl Board & Batten | Can warp or gap at seams with temperature swings; not rigid | Color is through-body but can fade and become brittle over time | Low maintenance but prone to cracking on impact, hard to repair invisibly |
| Wood or Primed Spruce | Most vulnerable to seam moisture intrusion and swelling | Field-applied paint, wears faster in driving rain | Frequent repainting and caulk maintenance in this climate |
| LP SmartSide / Engineered Wood | Better than raw wood but still moisture-sensitive at cut edges and seams | Factory-treated but edge sealing is critical and installation-sensitive | Moderate; edge and seam maintenance matters more than with fiber cement |
Our Process for Columbia Board & Batten Projects
Because we work in this neighborhood regularly, we already have a working sense of the wall assemblies, exposure patterns, and common trouble spots on Columbia's housing stock. Our process on a board and batten project generally includes:
- An on-site assessment of the existing wall condition, current siding (if any), and any moisture or rot already present behind it
- A review of drainage plane and rain screen needs specific to the home's orientation and exposure to prevailing wind and rain
- A detailed proposal specifying the exact Hardie board and batten product, batten spacing, and trim details, with a clear scope of what's included
- Correct tear-off, sheathing repair where needed, and installation of the water-resistive barrier and rain screen system before a single board goes up
- Installation to James Hardie's fastening and flashing specifications, not shortcuts that speed up the job at the expense of the wall assembly
- A final walkthrough covering caulking, trim, and touch-up so the finished job is both weathertight and clean-lined
What to Ask Before Hiring Anyone for Board & Batten Siding
Board and batten is a style that hides installation mistakes well at first and reveals them slowly — usually starting with staining at the battens or soft spots near the base of the wall. Before hiring a crew for this work in Columbia or anywhere in Bellingham, it's worth asking:
- Will there be a rain screen or furring strip gap behind the siding, or is it going directly over the water-resistive barrier?
- What fastener type and spacing will be used, and are they rated for coastal/salt-air exposure?
- How will horizontal joints and butt seams be flashed?
- Is the crew installing to the manufacturer's published installation instructions, and will the warranty stay valid because of it?
- What happens to cut edges — are they sealed before or after they go on the wall?
A contractor who can answer these clearly and specifically has done this work correctly before. Vague answers are usually a sign the details haven't been thought through.
Why Local Experience in Columbia Matters
Exposure varies block by block in a neighborhood like Columbia — a wall facing the water and prevailing wind needs a different level of moisture management than a sheltered, tree-covered lot a few streets over. A crew that already works this part of Bellingham has a feel for which walls need extra attention to flashing and drainage and which details of Whatcom County's building and weather patterns actually matter on a given house, rather than applying a one-size-fits-all approach.
If you're considering board and batten siding for a home in Columbia, we're happy to take a look and walk you through what your specific house and exposure would need. Fill out the form below for a free, no-pressure estimate.