How is board and batten actually different from just adding trim strips to flat siding?

True board and batten is a full siding system — wide vertical boards or panels with narrower battens covering the seams — engineered to shed water at every joint. Trim strips glued or nailed onto flat siding for looks don't manage water the same way and can trap moisture behind them, which causes problems faster in a wet climate like Bellingham's.

What should I ask a contractor to prove they're actually James Hardie certified, not just someone who's installed it before?

Ask for their Hardie contractor certification status directly, since Hardie maintains a certified installer network with training requirements, and ask to see photos or references from a prior board and batten job specifically, since it's a more detail-sensitive pattern than standard lap siding. A contractor who can't speak to fastening schedules or edge-sealing requirements without checking isn't someone who installs it often.

Why do some contractors offer LP SmartSide as a cheaper alternative to Hardie board and batten?

LP SmartSide is engineered wood with a resin-treated strand board core, and it's generally less expensive than fiber cement. It performs reasonably when installed and maintained correctly, but as a wood-based product it's more sensitive to sustained moisture exposure at cut edges and seams, which is part of why we standardized on fiber cement instead for a climate that stays wet for months at a time.

Does James Hardie make board and batten in a version built for this specific climate?

Yes — Hardie's HZ10 product line is engineered for climates with more moisture, freeze-thaw cycling, and moss/algae exposure, which covers most of western Washington. It's a different formulation than the HZ5 line sold in hot, dry climates, so it matters that the product installed here is actually the correct regional version.

Does Bellingham's proximity to the water affect how board and batten should be installed compared to more inland parts of Whatcom County?

Salt air accelerates corrosion on fasteners and metal flashing, so homes closer to Bellingham Bay benefit from corrosion-resistant fastener specs and careful flashing choices, especially at batten joints and trim intersections. It's not a different siding, but it does mean the hardware and flashing details deserve more attention on waterfront and near-waterfront properties.

Board & Batten Siding Done Right with James Hardie

Why Board & Batten Keeps Coming Up in Bellingham

Board and batten is one of the most requested siding looks in Whatcom County right now, and it's easy to see why. The vertical lines read as clean and modern on newer builds, but they also sit comfortably on farmhouses, craftsman remodels, and the older homes scattered through Bellingham's neighborhoods and out toward Ferndale and Lynden. It's a pattern, not a material — you can build it in cedar, engineered wood, vinyl, or fiber cement — and the material you pick matters more than most homeowners expect once you factor in what this region does to exterior walls year-round.

We install board and batten exclusively in James Hardie fiber cement. This page explains the system itself: how it's built, what correct installation looks like, and why it holds up better here than the alternatives.

What Bellingham's Climate Does to Vertical Siding

Board and batten has more seams than lap siding — every batten strip is another joint, another place for water to find a way in if the install isn't tight. That's a bigger deal here than in a dry climate. Bellingham sits right on the water, which means salt-laden air working on fasteners and finishes, plus driving rain that comes in sideways off Bellingham Bay during winter storms. Add in a moss and algae season that runs long on north-facing walls under tree cover, and you've got a siding assembly that needs to manage moisture correctly for months at a stretch, not just shed the occasional shower.

Vertical patterns concentrate runoff along the battens and can hold moisture at horizontal trim and butt joints if the water-resistive barrier and flashing details aren't done right. This is a detailing problem more than a material problem, but the material determines how forgiving the assembly is when a homeowner is 15 years past the original installation and hasn't recoated anything.

Why We Don't Build This Look in Wood or Vinyl

Cedar board and batten looks great on day one. The issue is upkeep: raw or primed wood needs re-staining or repainting on a real schedule, and battens in particular trap moisture at the nailing points if that maintenance slips even a season or two in a wet climate. Vinyl board and batten exists, but vinyl relies on overlap and expansion gaps rather than a rigid, paintable seam, and it's more prone to warping and fading under long-term UV and moisture cycling. Neither is wrong for every application everywhere — but for what we put on Whatcom County homes, we settled on fiber cement because it doesn't ask the homeowner to maintain a finish to stay watertight.

The James Hardie Board & Batten System

James Hardie builds board and batten a couple of different ways, and the choice affects both cost and long-term performance.

Hardie Panel vertical siding with Hardie Trim battens — large fiber cement panels installed vertically with trim boards fastened over the panel seams. This is the most common approach and gives a crisp, consistent reveal.
Hardie Artisan or Board Panel systems — used where a homeowner wants a more refined, tighter-reveal look, often on higher-visibility elevations.
Mixed elevations — board and batten on gables or accent walls with Hardie lap siding on the main field, which is common on remodels where the goal is a design accent rather than a full re-side.

All of it is fiber cement: sand, cement, and cellulose fiber, cured to a rigid board that doesn't rot, doesn't feed pests, and is non-combustible — a real consideration given the wildfire smoke seasons the whole Pacific Northwest has been dealing with in recent summers.

ColorPlus Finish: The Part That Actually Matters Long-Term

The factory-applied ColorPlus finish is arguably more important on board and batten than on any other Hardie profile, because of how many trim edges and cut ends are involved. ColorPlus is baked on at the factory in multiple coats, backed by a longer finish warranty than field-applied paint, and it's formulated to resist the fading and moisture intrusion that a job-site paint job is more exposed to. On a pattern with this many seams, a finish that's consistent edge-to-edge and doesn't rely on a painter getting full coverage into every batten joint is worth the upgrade.

We also seal and prime factory-cut edges on site per Hardie's installation instructions — cut ends are the one place the factory finish doesn't already protect, and it's a step that's easy to skip and impossible to catch later without pulling boards off the wall.

What Correct Installation Actually Involves

Board and batten fails when it's treated like a decorative overlay instead of a full siding assembly. Correct installation includes:

A continuous water-resistive barrier behind the panels, lapped correctly at every seam and penetration
Proper fastener spacing and placement per Hardie's published fastening schedule — not "however the last crew did it"
Correct clearance at the foundation, roofline, and any horizontal trim so the assembly can drain and dry
Sealed or primed factory-cut edges before installation, not after
Batten spacing and fastening that accounts for the panel's expansion and contraction, so boards don't crack or pop over time

Every one of these is in Hardie's written installation guidelines, and every one of them is also the kind of thing that's invisible once the siding is up — which is exactly why it gets skipped by crews working fast. It's also exactly what determines whether a board and batten job looks good for two years or thirty.

Comparing the Common Board & Batten Materials

Material	Moisture behavior	Maintenance	Fire resistance	Typical warranty
Cedar	Absorbs moisture, needs finish to stay protected	Restain/reseal every few years	Combustible	Product warranty only, no finish coverage
Vinyl	Sheds water via overlap, can trap moisture behind panels if installed poorly	Low, but fades and can warp with age	Combustible, can melt/deform	Prorated, often 20-30 yrs
LP SmartSide (engineered wood)	Treated to resist moisture but still wood-based, sensitive to sustained wetting at edges	Low to moderate; edge sealing matters	Combustible	Typically 5 yr workmanship / longer prorated product
James Hardie fiber cement	Dimensionally stable, doesn't absorb and swell like wood	Occasional rinse; no refinishing needed with ColorPlus	Non-combustible	30-yr non-prorated product, separate ColorPlus finish warranty

Cost Factors Specific to Board & Batten

Board and batten typically runs somewhat more than standard lap siding in the same material, mostly due to labor. A few things that move the price:

Batten count and spacing — tighter reveals mean more trim pieces and more fastening
Whole-house vs. accent application — a gable or accent wall costs far less than a full re-side
Panel size and cut complexity — homes with lots of windows, dormers, or roof intersections need more precise cutting and more sealed edges
Existing wall condition — if there's rot or moisture damage behind old siding, that has to be addressed before new siding goes up, which is common on older Bellingham homes near the water

We give a real, project-specific number after looking at the actual elevations — broad national averages don't account for what's actually on the wall.

Where Board & Batten Makes the Most Sense in This Region

We see the strongest results with board and batten on gable ends, dormers, and accent walls paired with Hardie lap siding on the main body — a combination that's common across Whatcom County remodels because it gives a distinct look without over-committing the whole exterior to a pattern with more seams than a standard lap job. Full-house board and batten works well too, especially on homes with simpler rooflines where there are fewer intersections to detail around. On homes with heavy tree cover or north-facing walls that stay damp longer through the moss season, we pay extra attention to drainage detailing regardless of which layout is chosen.

Questions Worth Asking Before You Commit

Is the WRB (water-resistive barrier) being replaced or reused, and what's its condition?
Are cut edges being sealed on-site, and when — before or after they go on the wall?
What's the fastening schedule, and does it match Hardie's published spec for this product?
Is this a full re-side or an accent application, and how does that change the flashing details at the transition?
What does the finish warranty actually cover, separate from the product warranty?

If you're weighing board and batten for a home in Bellingham or anywhere in Whatcom County, we're happy to walk the exterior with you, talk through layout options, and give you a straight, no-pressure estimate — reach out through the form below.