Birch Bay Board & Batten Siding in Marietta: Built for This Stretch of Coast
Marietta sits close enough to Birch Bay and the Strait of Georgia that its homes take the same weather beating as the rest of this Whatcom County shoreline: salt-laden air off the water, driving rain that comes in sideways more often than straight down, and a moss season that can run from October clear through April. Board and batten siding has become a popular choice out here because of its clean, vertical-line look and the way it reads on both older farmhouses and newer builds along the water. But board and batten is also one of the least forgiving siding styles when it's installed wrong, and this stretch of coast is not a forgiving place to make installation mistakes.
This page is about doing board and batten right, specifically for Marietta conditions, and specifically in James Hardie fiber cement — the only siding product we install.
Why This Climate Changes How Board & Batten Should Be Built
Board and batten relies on vertical boards with narrow strips (battens) covering the seams. That seam-heavy design is exactly where coastal weather does the most damage if the assembly isn't detailed correctly.
Salt Air
Airborne salt from the Strait doesn't just sit on the surface — it works into fastener heads, caulk joints, and any exposed end grain. Untreated or poorly primed cut edges are where deterioration starts first, and on a board and batten wall there are more cut edges and butt joints than on lap siding because of the vertical board layout.
Driving Rain
Wind off the water pushes rain horizontally into wall assemblies rather than letting it run straight down and off. A board and batten wall depends on correct flashing, house wrap integration, and drainage behind the boards to handle that pressure. Get the water management layer wrong and moisture gets pushed past the siding face, not just onto it.
Moss and Sustained Moisture
Marietta's moss season means long stretches where north- and shade-facing walls stay damp for days at a time. Any siding material that absorbs and holds that moisture — rather than shedding it — is going to show it first in board and batten's narrow batten strips, which have less surface area to dry out between rain events.
Why Board & Batten Amplifies Material Choice
Every siding profile is more or less sensitive to a bad material choice, and board and batten sits near the sensitive end. Here's why that matters when you're deciding what to put on a Marietta home:
- More linear feet of seam per square foot of wall than lap siding, meaning more opportunities for water intrusion if the material swells, cups, or the joints open up
- Battens are narrow and thin relative to the field boards, so they dry out slower and show moisture damage faster
- The vertical grain pattern on wood-based products telegraphs warping and splitting more visibly than horizontal lap siding does
- Paint and caulk failures on battens are highly visible from the street because of the repetitive vertical pattern
This is a big part of why we standardized on James Hardie fiber cement rather than wood-based or engineered-wood board and batten products. Fiber cement doesn't swell and shrink with moisture the way wood-based composites do, and it holds paint and caulk lines far longer in a wet, salty climate — which is the exact environment board and batten needs to perform in out here.
What a Correct Board & Batten Installation Involves
Board and batten looks simple from the street, but a correct install has several layers most homeowners never see:
Water Management Behind the Siding
A weather-resistive barrier (house wrap) installed with proper shingle-lap sequencing, correctly integrated flashing at every window, door, and penetration, and a drainage gap or rainscreen strategy so any water that does get past the face boards can drain and the wall can dry.
Fastening
Corrosion-resistant fasteners driven to the manufacturer's spacing and embedment specs — critical in a salt-air environment where the wrong fastener corrodes and stains the siding face from the inside out within a few seasons.
Board and Batten Layout
Consistent batten spacing, correct field board width for the home's proportions, and properly caulked or shiplap-detailed vertical joints so the wall doesn't rely on caulk alone to keep water out.
Trim and Transitions
Clean terminations at the foundation, corners, soffits, and roofline — the places where two different building materials meet are where the majority of siding failures actually start, board and batten included.
James Hardie Board & Batten: The System We Install
We install James Hardie's board and batten profile in their fiber cement system, factory-finished with ColorPlus Technology. A few specifics that matter for a Marietta install:
| Feature | Why It Matters Here |
|---|---|
| Fiber cement composition | Doesn't absorb and swell with moisture the way wood or wood-composite battens do, so joints stay tighter through moss season |
| ColorPlus factory finish | Baked-on finish resists the fading and chalking that salt air and UV accelerate on field-painted wood siding |
| HZ5 climate-engineered formulation | Engineered for wetter, harsher climates rather than a generic national product |
| Non-combustible material | Added protection relevant to regional wildfire smoke and ember exposure, on top of weather performance |
| Manufacturer warranty | Transferable coverage backing the product, separate from our own installation workmanship |
We won't install board and batten in vinyl, LP SmartSide, primed spruce, cedar, or other engineered wood products. Those materials have their place, but on this coastline's combination of salt air, wind-driven rain, and prolonged damp shade, we've seen where each of them tends to fall short over a decade or two of exposure — and we don't want our name on an installation we don't believe will hold up out here.
Our Process on a Marietta Board & Batten Job
1. On-Site Assessment
We walk the home, note wall orientation relative to prevailing wind and rain, check existing moisture damage, soffit and gutter condition, and any areas with heavy shade or moss growth history.
2. Tear-Off and Sheathing Check
Old siding comes off and we inspect the sheathing underneath. Any rot or soft spots get repaired before a single new board goes up — covering a compromised wall with new siding just hides the problem.
3. Water Management Install
House wrap, flashing, and drainage detailing go in per manufacturer spec, with extra attention at every window and door opening.
4. Board & Batten Installation
James Hardie boards and battens are installed to spec — correct fastener type and spacing, correct reveal and batten alignment, and correctly detailed joints.
5. Final Walkthrough
We walk the finished job with the homeowner, checking caulk lines, trim, and overall finish before calling it done.
Why a Crew That Already Works Marietta Matters
Board and batten installation isn't standardized by geography — the same profile installed correctly in a dry inland climate can be installed the exact same way here and fail years earlier, simply because the water and salt exposure is different. A crew that regularly works Birch Bay and Marietta already understands:
- Which wall orientations on local lots take the worst of the wind-driven rain
- How aggressive the moss growth gets on shaded north walls and what that means for drainage detailing
- What fastener and flashing choices actually hold up against sustained salt air rather than just meeting minimum code
- Realistic maintenance expectations for homeowners once the siding is up
That local pattern recognition is hard to replace with a general specification sheet, and it's a big part of why the details matter more here than they would on the same job forty miles inland.
Maintenance Expectations After Installation
Even with the right material and a correct install, board and batten in this climate needs some basic upkeep from the homeowner:
- Periodic rinse-down to remove salt residue and organic buildup, especially on shaded walls
- Visual check of caulk lines at trim and joints every year or two, since caulk is the first line of defense at transitions
- Keeping gutters clear so roof runoff doesn't sheet down onto the siding face
- Trimming back vegetation that keeps a wall section shaded and damp longer than the rest of the house
James Hardie's factory finish and fiber cement composition significantly reduce this burden compared to field-painted wood siding, but no siding material in a coastal climate is entirely maintenance-free.
Get an Estimate for Your Marietta Home
If you're weighing board and batten siding for a home in Marietta or elsewhere around Birch Bay, we're happy to walk the property, look at your walls' actual sun and rain exposure, and give you a straight answer on what a correct James Hardie board and batten installation would involve and cost. There's no pressure and no obligation — just fill out the form below to request a free estimate.