Blaine Siding Board & Batten in Custer: A Style That Fits the Area
Custer is a quieter, more rural stretch of Whatcom County than the town centers of Blaine or Ferndale nearby — bigger lots, more tree cover, older farmhouses next to newer builds. Board and batten siding shows up a lot on homes out here, and it's not just because it looks good with a barn or a wraparound porch. The vertical lines read as "country" in a way lap siding doesn't, and on acreage with some distance from the road, that clean vertical pattern actually holds up visually better than a fussier profile.
But Custer's setting cuts both ways. The same rural character that makes board and batten a natural fit also means more standing tree cover, more shade, and more moisture sitting against a house longer than it would on an open, sun-exposed lot in town. If you're going to run board and batten out here, it needs to be installed like the area demands — not like a catalog photo.
What Whatcom County's Climate Actually Does to Siding
Custer sits a few miles inland from Semiahmoo Bay and Birch Bay, but "inland" in this part of Whatcom County doesn't mean dry. Marine air still reaches this far in, carrying salt that slowly works on fasteners, trim, and any exposed wood. Combine that with the driving, wind-pushed rain that comes through in fall and winter storms, and you've got moisture finding its way into seams and joints that a calmer climate would never test.
Then there's the moss. Whatcom County's long, wet stretch from October through May, paired with the tree canopy common on Custer properties, keeps north- and shade-facing walls damp for weeks at a time. Moss and algae don't just look bad — they hold moisture against the siding surface and, on the wrong material, accelerate rot and paint failure. A board and batten system with narrow vertical channels between boards is more prone to trapping that moisture at the seams than people expect, which is exactly why the installation details matter more here than in a drier climate.
The Three Things We Design Around
- Salt-laden air — corrodes unprotected fasteners and degrades poorly sealed finishes over years, not months
- Driving rain — pushed sideways by wind, it tests every seam, batten joint, and penetration, not just the flat wall
- Extended moss season — shaded, tree-covered lots stay damp long enough for organic growth to take hold if the siding can't dry out between rain events
How a Board & Batten System Actually Works
Board and batten isn't a single product — it's an assembly. Wide vertical panels or boards go up first, then narrower battens cover the seams between them. Done right, that overlap sheds water down and off the wall face. Done wrong — battens too tight, no gap behind the panel, wrong fastening pattern — water gets trapped exactly where the boards meet, and that's where problems start.
The other piece people miss is what's behind the boards. A wall needs a drainage plane and a gap for air movement so that any moisture that does get past the surface can dry out instead of sitting against the panel. On a shaded Custer lot with limited sun exposure, that drying capacity isn't optional — it's the difference between siding that lasts decades and siding that's showing problems in five years.
Why We Only Install This in James Hardie Fiber Cement
Board and batten has traditionally been a wood look, and there's still wood and engineered-wood board and batten on the market, plus vinyl versions made to mimic the profile. We don't install either, and it's worth explaining why rather than just saying no.
Wood board and batten is honest and attractive when new, but it's also the material most exposed to Custer's specific stack of problems: it absorbs moisture at the seams, it's what moss and algae actually feed on, and it needs repainting and caulk maintenance on a schedule most homeowners don't want to keep up with. Engineered wood products close some of that gap but are still wood-based at the core, which means they're still sensitive to sustained moisture exposure if a seam fails or paint isn't kept current.
Vinyl board and batten solves the rot problem but introduces its own: it's a thin material that expands and contracts significantly with temperature swings, which can telegraph waviness at the battens over time, and it has no real fire resistance. It also can't be refinished — when the color fades or a section gets damaged, you're replacing panels, not touching up paint.
James Hardie fiber cement gives us a board and batten look that's dimensionally stable, doesn't feed moss the way wood does, carries a factory-applied ColorPlus finish warrantied against fading and chipping, and is non-combustible. For the Pacific Northwest specifically, Hardie's HZ5 product line is engineered for climates with sustained moisture exposure — which describes Custer about as well as anywhere in the county.
What Correct Installation Requires
The product is only half the equation. Most board and batten failures we get called out to inspect aren't material failures — they're installation shortcuts. On a Custer job, here's what has to happen for the system to actually perform:
- A weather-resistant barrier installed continuously behind the panels, lapped correctly at every seam and penetration
- A rainscreen gap (furring strips or a drainage mat) so water that gets behind the surface has somewhere to drain and air to dry it out
- Panels and battens fastened per the manufacturer's schedule — not just "enough nails," but the right spacing and the right distance from panel edges
- Batten placement that covers seams fully without pinching the panel so tight that it can't handle normal expansion and contraction
- Factory-primed or ColorPlus-finished cut edges sealed at every field cut, especially around windows, doors, and corners
- Proper flashing and kick-out details at rooflines, decks, and any horizontal-to-vertical transition — the single most common place we find water damage on older board and batten homes
- Bottom-of-wall clearance from grade, decking, and hardscape so the lowest boards aren't sitting in splash-back moisture
Skip any one of those and you can still have board and batten that looks right for a couple of years before the problems show up behind the wall where you can't see them.
Board & Batten vs. Other Siding Options for Custer Homes
Board and batten isn't the right call for every house, and we'll tell you that upfront rather than push a style that doesn't suit the home. Here's how it stacks up against the other options homeowners in this area usually consider.
| Siding Style | Moss/Moisture Behavior | Maintenance | Best Fit |
|---|---|---|---|
| Board & Batten (Hardie) | Good, if rainscreen and flashing details are done correctly | Low — factory finish, occasional wash | Farmhouse, rural, and craftsman-style homes |
| Lap Siding (Hardie) | Very good — horizontal overlap naturally sheds driving rain | Low | Most home styles; the safer default on heavily shaded lots |
| Shingle/Shake Panel (Hardie) | Good, more surface texture holds a bit more debris | Low to moderate | Coastal cottage and traditional Pacific Northwest homes |
| Wood Board & Batten | Poor to moderate — seams and grain absorb moisture | High — repaint and recaulk on a recurring schedule | Homeowners committed to ongoing upkeep |
| Vinyl Board & Batten | Fair — doesn't rot, but traps moisture behind it if not vented properly | Low, but no refinishing option | Budget-driven projects with lower expectations for longevity |
For a lot of Custer properties, especially anything with heavy shade or close tree cover, we'll walk you through whether board and batten on the whole house makes sense or whether it's better used as an accent — gables, a porch surround, a shop — with lap siding doing the heavy lifting on the shaded walls that need the best drainage.
Our Process, Start to Finish
Every Custer estimate starts with a walk-around, not a sales pitch. We're looking at sun exposure, tree cover, existing moisture or moss patterns, roofline transitions, and what's actually going on behind the current siding if it's coming off.
- Site assessment — we evaluate drainage, grade clearance, existing damage, and how much shade the walls get through the year
- Scope and design — full board and batten, partial/accent application, panel width and reveal, color and trim selection
- Tear-off and prep — old siding removed, sheathing inspected and repaired as needed before anything new goes up
- Weather barrier and rainscreen — installed and inspected before a single panel goes on the wall
- Panel and batten installation — fastened, flashed, and sealed to Hardie's specifications, not shortcuts
- Final walkthrough — we go over the finished work with you before calling the job done
Why Hiring a Crew That Already Works Custer Matters
A crew that's worked this specific area knows the difference between a Custer lot with full tree canopy and a wide-open one closer to the water — and that changes how a board and batten job should be detailed. We know how Whatcom County's storm patterns hit vertical siding differently than they hit lap siding, and we account for that in the flashing and gap details before the first panel goes up, not after a callback.
Working this area regularly also means straightforward scheduling and fewer surprises — we're not learning the local weather and moss patterns on your project, and we're not guessing at how a house near Blaine and Birch Bay's marine air needs to be built compared to one further inland.
If you're considering board and batten for a home in Custer, we're happy to walk the property, talk through whether it's the right style for your specific lot, and give you a straightforward, no-pressure estimate — use the form below to get started.