Birch Bay Roofing Why Board & Batten Makes Sense for Custer Homes
Custer sits inland just enough from Birch Bay to feel a little different from the waterfront, but it still gets the same weather system: marine air pushing in off the Strait of Georgia, long wet stretches through fall and winter, and short dry summers that don't do much to dry things back out. A lot of the homes out here lean toward farmhouse, craftsman, and rural-property styles, and board and batten siding fits that look naturally — the vertical lines read as simple and honest, not fussy. It's also a practical choice for this climate when it's built right, because vertical board profiles shed water differently than horizontal lap siding, and that matters more here than it would somewhere dry.
What Board & Batten Siding Actually Is
True board and batten is two layers: wide flat boards installed vertically, with narrower strips (the battens) covering the seams between them. Done correctly, that layered seam is part of what keeps water out — it's not just a look. A lot of what gets sold as "board and batten" today is actually a single panel with grooves routed or molded into it to fake the reveal lines. That's a legitimate product in its own right, but it behaves differently than real board-over-board construction, especially at the seams, and homeowners comparing quotes should know which one they're actually being offered.
What Whatcom County's Coastal Climate Demands From Vertical Siding
Vertical siding has more seams and more fastener penetrations per square foot than long horizontal lap boards, which means the material and the installation both have to work harder in a place like this. Three things specifically wear on siding in Custer and the surrounding Birch Bay area:
- Salt-laden air off the bay accelerates corrosion on fasteners, flashing, and trim that isn't rated for it — and a rusting fastener eventually leaks.
- Wind-driven rain doesn't just run down a wall, it gets pushed sideways into seams and laps, so every joint and batten reveal is a potential entry point if it isn't detailed correctly.
- A long moss and algae season — the wet months here run far longer than most of the country's — means anything porous or slow to dry stays damp longer, which is exactly what moss, mildew, and rot need to take hold.
None of that makes board and batten a bad choice for this area. It just means the material has to tolerate constant moisture cycling without swelling, cupping, or breaking down, and the installation has to manage drainage on purpose rather than hoping the paint holds.
Why We Install Board & Batten Only in James Hardie Fiber Cement
We get asked fairly often about cedar board and batten, engineered wood versions, and vinyl board and batten panels. Each one has real strengths, and we're not going to pretend otherwise — but we've made a professional decision to install board and batten in James Hardie fiber cement only, and it comes down to how each material actually performs once it's living through a Whatcom County winter.
The Trade-Offs With Cedar, Engineered Wood, and Vinyl
Cedar is a genuinely beautiful traditional choice, and it's the historical basis for the board and batten look. The problem in a marine climate is moisture: solid wood swells and shrinks with humidity, and in a place that stays damp for months at a stretch, that movement shows up as cupping, checking, and eventually rot at the seams and end grain — the exact spots that are hardest to keep sealed. It also needs refinishing on a schedule most homeowners underestimate when they first choose it.
Engineered wood siding (the LP SmartSide-style products) solves some of cedar's dimensional stability issues with strand-and-resin construction, but it's still wood-based at its core. If moisture gets past a cut edge, a fastener hole, or a failed caulk joint, the strand board can swell and delaminate from the inside — often before it's visible from outside. In a climate where wall assemblies stay wet longer between drying cycles, that sensitivity to installation quality is a real risk we'd rather not take on.
Vinyl board and batten won't rot, and it's low-maintenance in the sense that it doesn't need painting. But it's a thin extruded product that flexes with temperature swings, can crack under wind-driven debris impact, and fades unevenly over time — and unlike fiber cement, a damaged section usually means replacing the whole panel run rather than a targeted repair.
James Hardie fiber cement is cement, sand, and cellulose fiber — it doesn't absorb and swell like wood, and it isn't a thin flexible plastic. It's dimensionally stable across wet and dry cycles, it's non-combustible, and Hardie's HZ5 product line is engineered specifically for climates like the Pacific Northwest that see repeated moisture and freeze-thaw exposure rather than sustained heat and humidity. Combined with the factory-applied ColorPlus finish, it holds color and resists the wear this coastline puts on siding better than any of the alternatives we used to install.
What a Correct Board & Batten Installation Involves
The material is only half the equation. Most of the board and batten failures we get called out to inspect on other contractors' work trace back to installation shortcuts, not the product itself. A correct job includes:
- A drainage plane — furring strips or a rainscreen gap behind the battens — so any moisture that gets past the surface can drain and dry instead of sitting against the sheathing.
- Battens and boards fastened into structural framing on the pattern the manufacturer specifies, not just wherever is convenient.
- Corrosion-resistant fasteners and flashing appropriate for a salt-air environment, not standard hardware that's fine sixty miles inland but won't hold up here.
- Properly lapped and sealed flashing at every window, door, and roofline intersection, where wind-driven rain concentrates.
- Batten spacing and reveal that's consistent across the wall, both for water management and so the finished look isn't uneven.
- Caulk used at the joints that call for it — and not used as a substitute for flashing where flashing is actually the correct detail.
Here's how the common board and batten options stack up on the factors that matter most in this climate:
| Material | How It's Made | Salt Air & Moisture Behavior | Maintenance | Typical Service Life |
|---|---|---|---|---|
| Cedar board & batten | Solid or resawn wood boards | Absorbs moisture; prone to cupping and rot at seams and end grain | Refinish every 3-5 years | 15-25 years with consistent upkeep |
| Engineered wood (strand-based) panels | Wood strand and resin composite | Stable when dry; vulnerable to swelling if edges or fasteners take on water | Regular caulk and edge-sealing checks | 20-30 years if maintained closely |
| Vinyl board & batten | Extruded PVC panels | Won't rot, but flexes with temperature and can crack under impact | Low upkeep, but damaged panels aren't spot-repairable | 20-30 years, with visible fading sooner |
| James Hardie fiber cement | Cement, sand, and cellulose fiber, ColorPlus or primed finish | Dimensionally stable; engineered for moisture and freeze-thaw cycling (HZ5) | Occasional wash; repaint only needed on non-ColorPlus finish | 30+ years, backed by transferable warranty |
Our Process From Estimate to Finished Siding
We walk the property first and look at what's actually happening with the existing siding and sheathing — not just the surface, but signs of trapped moisture, soft spots, or past patch jobs that were never really fixed. From there we talk through board width and reveal so the proportions suit the house, decide whether a full tear-off or a planned overlay approach makes sense given what's underneath, and put together a written estimate that spells out material, fastening approach, and flashing details rather than a vague lump sum.
During installation we follow the manufacturer's fastening and clearance specifications, not a generalized approach borrowed from lap siding — board and batten has its own requirements for batten spacing, fastener placement, and drainage detailing. Once the siding is up, we go back through trim, caulking, and touch-up work, then walk the finished job with the homeowner before calling it done.
Why Hiring a Crew That Already Works in Custer Matters
Whatcom County's coastline doesn't treat every wall the same. Which side of a house takes the worst of the wind-driven rain, how much a given lot is exposed to salt air versus sheltered by trees or terrain, how long moss actually takes to establish on a north-facing wall out here versus somewhere drier — that's local knowledge, and it shows up in the details of the job, not just the sales pitch. A crew that's already worked Custer and the surrounding Birch Bay area has usually seen how last year's siding jobs are holding up, which tells you more than a manufacturer's brochure ever will.
Before you hire anyone for board and batten work, it's worth asking a few direct questions:
- Are you installing true board-over-batten construction, or a single panel with routed grooves — and which one is being quoted?
- What fastener and flashing materials are you using, and are they rated for a salt-air environment?
- Is there a drainage gap behind the siding, or is it going straight against the wall?
- Can you show me board and batten work you've completed in this area that's been up for a few years?
- What does the manufacturer's warranty actually cover, and does it survive a change in homeowner?
A contractor who answers those clearly and specifically is generally the one who's done this enough times to get it right.
Maintenance and Long-Term Care in a Marine Climate
Even a correctly installed fiber cement board and batten system benefits from a little attention. In this climate, that mostly means keeping gutters and downspouts clear so water isn't sheeting down the wall, periodically washing off moss and algae buildup on shaded or north-facing walls before it spreads, and keeping an eye on caulk joints at trim and penetrations over the years. None of that is heavy maintenance — it's a fraction of what cedar or engineered wood demand — but it's what keeps a 30-year product actually reaching 30 years in a place that stays wet as long as Whatcom County does.
If you're weighing board and batten for a home in Custer and want a straight answer about what it would take and what it would cost, we're glad to walk the property and put together a free, no-pressure estimate — just fill out the form below.