How is board and batten siding actually installed — is it just boards nailed over gaps?

A correct installation uses either a solid vertical panel with battens fastened over the seams, or individual boards with battens covering the gaps, both over a properly lapped weather-resistive barrier and drainage gap. The vertical look is simple, but the number of seams and fastening points means the underlying moisture management has to be done right, since there's less room for error than with horizontal lap siding.

What should I ask a contractor before hiring them for board and batten work in this area?

Ask what fastener type they use and whether it's corrosion-resistant, since coastal salt air will show rust streaking within a few years if the wrong fasteners are used. Also ask how they handle the drainage plane and rainscreen gap, and ask to see their approach to flashing at window heads and trim transitions, since that detail work is what actually determines whether the siding holds up.

Why does this company only install James Hardie instead of offering vinyl or wood board and batten too?

We standardized on James Hardie fiber cement because, in our professional judgment, it's the material that holds up best to the specific combination of salt air, wind-driven rain, and long damp shade seasons found in this part of Whatcom County. Vinyl, cedar, and engineered wood options all have legitimate uses, but each comes with trade-offs in moisture behavior, finish durability, or maintenance that we don't think serve homes here as well over the long run.

What's the difference between James Hardie's standard siding line and the HZ5 formulation?

James Hardie manufactures region-specific formulations, and HZ5 is engineered for climates with significant moisture exposure, which describes coastal Whatcom County well. The difference is in how the fiber cement is formulated to perform under sustained damp conditions, not just a marketing label — it's paired with the factory-applied ColorPlus finish for additional protection against fading and moisture over time.

Is Custer's proximity to the water actually a meaningful factor for siding, or is that overstated?

It's meaningful but not extreme — Custer sits close enough to Birch Bay and Semiahmoo Bay that homes get real salt air exposure and wind-driven rain, but it isn't oceanfront-level severity. The bigger factor locally is often the combination of that coastal moisture with shaded, tree-covered lots that stay damp for months, which is what drives the long moss season more than salt air alone.

Board & Batten Siding Services in Custer, WA

Board & Batten Siding in Custer: A Look That Has to Earn Its Keep

Board and batten has become one of the most requested siding styles in Custer, and it's easy to see why. The vertical lines read as clean and modern on newer builds, but they also sit comfortably on older farmhouses and rural properties scattered through this part of Whatcom County. It's a style that photographs well from the road and gives a home real presence.

But Custer sits close enough to the water — with Birch Bay, Semiahmoo Bay, and the Strait of Georgia all nearby — that the siding on a home here is doing more work than the siding on a comparable house fifty miles inland. Salt-laden air, wind-driven rain off the Salish Sea, and a moss season that can run eight months or longer all put real stress on exterior materials. Board and batten looks simple, but the seams, battens, and vertical joints in this style create more edges and more fastening points than lap siding — which means more places for water and salt to find a way in if the job isn't done right.

What Custer's Climate Actually Does to Board & Batten Siding

Salt Air and Fastener Corrosion

Homes within a few miles of Birch Bay and Semiahmoo Bay live in a mild salt-air environment. It's not oceanfront-Florida corrosive, but it's persistent, and over years it works on unprotected metal. Board and batten siding relies on a lot of exposed or semi-exposed fasteners along the battens themselves — if those fasteners aren't corrosion-resistant, you get rust streaking bleeding down the face of the siding long before the siding itself has any right to fail.

Driving Rain and Wind Exposure

Custer doesn't get hurricane-force wind, but it does get sustained wind off the water paired with rain that comes in sideways rather than straight down. Vertical board and batten has a natural path for water to run down the face — that's fine when the water stays on the surface. The problem shows up when wind pressure pushes moisture behind the battens at the seams. A correctly built drainage plane and rainscreen gap handle this; a shortcut installation doesn't, and the failure is invisible until it's a rot problem years later.

The Long Moss Season

Shaded, north-facing walls and anything under overhanging trees in this part of Whatcom County stay damp for most of the year. Moss and algae take hold on siding that can't shed water and dry out between rain events. On board and batten, moss tends to collect first in the shadow line where the batten meets the board — a detail that matters when you're choosing materials and finishes, not just color.

What a Correct Board & Batten Installation Involves

The vertical look can be built two honest ways, and the difference matters more than most homeowners realize when they're comparing bids.

Panel-and-batten system: a solid vertical fiber cement panel with battens fastened over the seams — fewer joints, a more consistent drainage plane, and a cleaner long-term look.
Board-on-board: individual vertical boards with battens covering each gap — more visually textured, more seams, and more dependent on correct spacing and fastening to perform well.

Whichever approach a home uses, the fundamentals that make it last in a Custer climate don't change:

A weather-resistive barrier installed correctly behind the siding, lapped shingle-style so water sheds outward, not inward
A rainscreen or furring gap that lets any moisture that gets behind the cladding drain and dry instead of sitting against the sheathing
Corrosion-resistant fasteners rated for the exposure — not standard fasteners that will bleed rust within a few seasons
Correct batten spacing and fastening pattern so boards can expand and contract without cracking caulk joints
Factory-finished material at the cut ends sealed properly, since a raw cut edge is the fastest way moisture gets into any fiber cement board
Flashing detail at every horizontal transition — window heads, trim boards, and the base of the wall — done correctly the first time, since it's not something you can inspect later without pulling siding

Why We Install James Hardie for Board & Batten — and Nothing Else

We standardized on James Hardie fiber cement for every siding job we do, board and batten included, and that decision comes from watching how different materials actually hold up in this exact climate — not from a sales brochure.

For vertical siding specifically, James Hardie's HardiePanel vertical siding paired with HardieTrim battens gives us a factory-engineered system rather than a field-built assembly with more variables to get wrong. The material is non-combustible fiber cement, which matters for wildfire-adjacent insurance considerations even out here on the coast, and it's manufactured with ColorPlus Technology — a baked-on factory finish that resists fading and holds up to UV and moisture exposure far better than field-applied paint on wood or engineered wood alternatives.

Just as important for this area: Hardie manufactures climate-specific product formulations, including HZ5 for regions with significant moisture exposure. That's an engineering response to exactly the conditions Custer sees — not a marketing label. Combined with a strong transferable warranty, it gives homeowners a siding system built for the actual environment their house sits in, rather than a generic national product.

We won't install vinyl board and batten, LP SmartSide, primed spruce, cedar, or other fiber cement brands. Each of those has legitimate uses elsewhere, but none of them, in our professional judgment, hold up to this specific combination of salt air, driving rain, and sustained damp shade as well as correctly installed James Hardie does. That's a standard we apply to every job, not a marketing line.

Comparing Board & Batten Material Options

Material	Moisture Behavior	Salt Air Durability	Maintenance Burden	Typical Lifespan
James Hardie Fiber Cement	Engineered drainage system, factory-sealed edges	Excellent with correct fasteners	Low — occasional wash	30+ years to warranty term
Cedar Board & Batten	Absorbs and releases moisture; needs breathable finish	Moderate — depends on finish upkeep	High — refinishing on a recurring cycle	15-25 years with diligent upkeep
Vinyl Board & Batten	Sheds surface water but seams can trap moisture behind panel	Can become brittle with UV and temperature swings	Low, but not repairable in sections	20-30 years, fades over time
LP SmartSide	Engineered wood core; edge sealing is critical	Sensitive to sustained moisture exposure	Moderate — edge and joint monitoring	25-30 years under ideal conditions

The cost factors that actually drive a board and batten estimate in Custer are less about material price per square foot and more about the prep work: how much existing siding needs to come off, whether the sheathing underneath is sound, how much trim and window flashing detail the home has, and how many stories and roof lines complicate access.

Our Process on a Custer Board & Batten Job

1. On-Site Assessment

We walk the exterior, check the condition of existing siding and trim, and look specifically at north-facing and shaded walls for existing moss or moisture staining — the areas most likely to have hidden issues underneath.

2. Tear-Off and Sheathing Check

Old siding comes off cleanly, and we inspect the sheathing before anything new goes on. This is the point where hidden water damage, if it exists, gets found and addressed — not covered over.

3. Weather Barrier and Drainage Plane

We install the weather-resistive barrier and rainscreen gap correctly lapped and detailed, since this layer is what actually protects the wall assembly long after the siding itself is up.

4. Panel, Batten, and Trim Installation

HardiePanel and HardieTrim go up to spec — correct fastener type, correct spacing, correct flashing at every transition.

5. Final Inspection

We walk the finished job with the homeowner, checking seams, caulk lines, and trim details before calling it complete.

Why It Matters to Hire a Crew That Already Works This Area

Board and batten forgives fewer mistakes than lap siding because there are more seams and more fastening points per square foot of wall. A crew that hasn't worked in coastal Whatcom County before might install it exactly to a generic spec sheet and still end up with a home that struggles here — because that spec sheet wasn't written with Birch Bay's wind exposure or Custer's shaded, damp lots in mind. A crew that already works this area knows which walls need extra attention to drainage, which fastener choices actually hold up to the salt air, and how the moss season here changes what "low maintenance" really means.

That local familiarity isn't a marketing point — it shows up in details like where we add extra flashing attention, which elevations we flag for future moss treatment, and how we talk homeowners through realistic maintenance expectations instead of overselling a "maintenance-free" product that doesn't fully exist in this climate.

Maintenance Custer Homeowners Should Expect

Rinse the exterior annually, with extra attention to shaded and north-facing walls where moss and algae take hold first
Inspect caulk joints at trim and window transitions every year or two, since caulk is the first line of defense and the first thing to wear
Watch for any rust streaking near fasteners — a sign of the wrong fastener choice, not a siding defect, and worth addressing early
Keep vegetation and tree cover trimmed back from walls to reduce the damp, shaded conditions moss needs to establish
Have any impact damage or cracked boards repaired promptly rather than left, since a small gap is how moisture gets behind the drainage plane

If you're weighing board and batten for a home in Custer, we're glad to walk the property, look at your specific exposure and elevations, and put together a straightforward, no-pressure estimate — just fill out the form below.