Ferndale Board & Batten in a Salt-Air, High-Rainfall Coastal Town
Blaine sits right up against the water at the northern edge of Whatcom County, and that location shapes what a siding job needs to survive. Homes here deal with a near-constant onshore breeze carrying salt, long stretches of driving rain off the Strait, and a moss season that can run from fall through spring. Board and batten is one of the most popular siding styles we install in this area, and for good reason — the strong vertical lines read well against the shoreline and evergreen backdrop that define this part of Washington. But the style only holds up if the material underneath it, and the way it's fastened to the wall, is built for the conditions it's going into.
This page covers what board and batten siding needs to do in Blaine specifically, what a correctly installed system looks like, and how we approach these projects.
What Salt Air, Driving Rain, and Moss Actually Do to Siding
Each of these three factors attacks siding differently, and board and batten's design — vertical boards with raised battens covering the seams — makes some of them more of an issue than others if the wrong material or a sloppy install is used.
Salt Air
Airborne salt is corrosive to fasteners and hardware, and it accelerates the breakdown of paint films and wood fiber over time. On a home a short distance from Semiahmoo Bay or Drayton Harbor, that exposure is a daily reality, not an occasional storm event. Siding material, trim, and fastener choice all need to account for it.
Driving Rain
Wind-driven rain doesn't just wet a wall surface — it pushes water sideways and upward, testing every seam, joint, and batten reveal. Board and batten has more vertical seams per square foot than lap siding, which means more places for water to find a way in if the joints, caulking, and flashing details aren't done right the first time.
Moss and Sustained Moisture
Whatcom County's long wet season keeps north-facing walls, shaded elevations, and anything near overhanging trees damp for weeks at a time. Moss and algae take hold wherever moisture sits against a surface without drying out. On absorbent or poorly sealed materials, that sustained dampness works its way into the substrate, not just the surface.
What a Correct Board & Batten Installation Involves
Board and batten looks simple from the street — vertical panels with battens over the seams — but the parts you can't see are what determine whether it lasts. A correct installation includes:
- A weather-resistive barrier installed with proper shingle-lap sequencing so water drains down and out, not behind the siding
- Rainscreen furring strips or a drainage gap in exposed, wind-driven areas so water and moisture vapor can escape instead of sitting against the wall
- Correct fastener type, length, and spacing driven into structural framing, not just sheathing
- Batten placement over panel seams sized and spaced to shed water rather than trap it
- Proper caulking at penetrations and terminations, with the siding manufacturer's specified sealants
- Flashing at windows, doors, and any horizontal trim intersections, installed before the siding goes on, not caulked in as an afterthought
- Correct clearance from grade, decks, and roof lines to keep the bottom edge of the siding out of standing water and splash-back
Skip any one of these steps and the siding may look fine for a season or two before problems start showing up at the seams — which, on a vertical pattern like board and batten, are exactly where the eye goes first.
Why We Install James Hardie Board & Batten — and Nothing Else
We install James Hardie fiber cement exclusively, including their vertical board and batten systems. That's not a brand preference — it's a standard we set because of what this style of siding and this climate demand.
Fiber cement doesn't swell, rot, or delaminate the way wood-based sidings can when they stay wet for extended periods, which matters through a Whatcom County winter. It's non-combustible, which is a real advantage as wildfire smoke and ember exposure become a bigger consideration even west of the Cascades. And James Hardie's ColorPlus factory finish is baked on and warranted against fading and peeling, so the boards and battens keep a uniform color instead of the field-applied paint on wood or engineered wood siding wearing unevenly, especially on the salt-exposed and shaded elevations where it fails first.
We don't install vinyl board and batten, LP SmartSide, cedar, primed spruce, or other fiber cement brands. Vinyl can look thin and hollow in a vertical pattern and doesn't hold paint if a homeowner wants to change color later. Wood-based products need consistent maintenance — caulking, painting, moisture monitoring — that's a lot to keep up with on a home exposed to salt air and driving rain year-round. Other fiber cement brands may be reasonable products, but we've standardized on James Hardie because of their engineered HZ product lines (built for specific climate zones, which matters for a marine coastal town like Blaine), the strength of their transferable warranty, and our own track record installing it correctly. Standardizing on one system also means our crews know its installation requirements cold — no guesswork, no mixed manufacturer specs on a job.
Board & Batten Options We Work With
| System | Look | Best Fit |
|---|---|---|
| HardiePanel vertical siding with HardieTrim battens | Classic wide-board-and-batten pattern | Full-elevation board and batten homes |
| Board and batten as an accent | Vertical panels on gables, dormers, or entry features | Homes mixing lap siding with a vertical accent |
| Artisan-tier vertical profiles | Refined reveal and shadow lines | Homes where a higher-end architectural look is the goal |
How the Process Works
For a Blaine board and batten project, our process starts with an on-site look at the home's exposure — which walls take the worst of the wind and rain off the water, where moss has already established, where the existing siding is failing first. That tells us where extra attention to drainage detailing and fastening matters most.
- On-site assessment — we walk the exterior, check the existing siding and sheathing condition, and note drainage, grading, and exposure issues specific to the property
- Scope and material plan — we spec the Hardie board and batten system, trim, and color for the home, accounting for any full-tear-off versus recover decisions
- Written estimate — a clear, itemized proposal with no surprise line items added mid-project
- Prep and weather barrier — removal of failing material, sheathing repair where needed, and correct installation of the weather-resistive barrier and drainage layer
- Installation — panels, battens, trim, and flashing installed to James Hardie's fastening and clearance specifications
- Final walk-through — we go over the finished job with the homeowner before calling it done
What Board & Batten Siding Costs Depend On
We don't publish flat pricing because every home is different, but the main cost drivers on a Blaine board and batten job are consistent:
| Factor | Why It Matters |
|---|---|
| Full tear-off vs. install over existing sheathing | Removing old siding and repairing sheathing adds labor but is often necessary if there's hidden moisture damage |
| Home size and elevation complexity | Gables, dormers, and cut-outs around windows and doors add material waste and labor time |
| Trim and batten detail level | Wider battens, corner details, and accent trim add material and installation time |
| Color and finish selection | ColorPlus factory finishes carry a different cost structure than field-painted options |
| Access and site conditions | Waterfront lots, steep grades, or tight setbacks can affect staging and labor time |
Why Hiring a Crew That Already Works in Blaine Matters
Board and batten installation quality depends heavily on details that don't show up in a walk-through the week the job wraps — drainage gaps, fastener penetration, batten spacing — and those details need to be right for the specific conditions a home faces. A crew that regularly works homes along this stretch of Whatcom County already knows which elevations take the worst wind-driven rain, where moss problems show up first, and how salt exposure affects fastener and trim choices over time. That's knowledge you don't get from a general contractor who does one siding job a year in a different climate zone.
It also matters for warranty support. If a question comes up two or five years down the road, you want a company that's still local, still doing this work, and familiar with your home's specific exposure — not a crew that was passing through.
Maintenance Once It's Installed
Correctly installed James Hardie board and batten is low-maintenance, not no-maintenance. A short annual routine keeps it performing the way it should through Blaine's wet, salt-exposed climate:
- Rinse the exterior yearly to clear salt residue and organic buildup, especially on water-facing elevations
- Check and refresh caulking at trim joints and penetrations every few years
- Trim back vegetation and tree cover that keeps any wall shaded and damp longer than necessary
- Watch for moss or algae starting on north-facing or shaded battens and clean it early rather than letting it establish
- Keep gutters and downspouts clear so water isn't sheeting down the wall face
If your Blaine home needs new siding or you're weighing board and batten against another style, we're happy to walk the exterior with you and give a straight, no-pressure estimate — no obligation, just an honest look at what the home needs.