Blaine Siding Board & Batten Siding, Built for How Lynden Actually Weathers
Board and batten has a long history in Whatcom County. The vertical lines read as farmhouse, as barn, as the kind of honest agricultural architecture that Lynden's landscape is built around. It's a look a lot of homeowners in this area want — but the look is only half the job. The other half is making sure that vertical siding actually holds up to what a Lynden winter and shoulder season throw at it: salt-tinged air drifting in off the Strait of Georgia and Puget Sound, driving rain that comes in sideways during winter storms, and a moss season that can run most of the year in the shade of a tree line or a north-facing wall.
We install board and batten siding across the Blaine and Whatcom County area, and Lynden jobs get treated as their own animal — not a copy-paste of a coastal Blaine install. The climate pressures overlap, but the details of a correct board and batten job change depending on sun exposure, wind direction, and how close a home sits to open farmland versus tree cover. This page is about what that actually means for a Lynden home.
Why Vertical Siding Needs Extra Discipline in This Climate
Board and batten is a beautiful system when it's done right, and a maintenance headache when it's not — more so than horizontal lap siding, because of how water moves on a vertical surface.
Driving Rain and Vertical Water Paths
On lap siding, each course overlaps the one below it and sheds water outward and down almost automatically. Board and batten runs vertically, which means water has a longer, straighter path down the wall face and along every seam. In a wind-driven rain event — which Whatcom County sees regularly through fall and winter — that water gets pushed sideways into every batten joint and every point where a board meets a window, door, or corner. If those details aren't flashed and gapped correctly, water finds its way behind the siding instead of off of it.
Moss and Trapped Moisture
Board and batten creates more surface texture and more shadow lines than flat lap siding, which gives moss and algae more places to establish, especially on north- and east-facing walls that don't get much direct sun. Moss itself isn't just cosmetic — it holds moisture against the siding surface far longer than a dry wall would, which accelerates wear on any product that isn't dimensionally stable.
Salt Air, Even Inland
Lynden sits back from the water compared to Blaine proper, but salt-laden air still moves inland with the prevailing weather off the Strait, and it settles into fastener heads, cut edges, and any exposed raw material over time. Materials and fasteners that aren't rated for a marine-influenced climate corrode faster here than they would in a dry inland region.
How a Board & Batten Wall System Actually Works
Board and batten isn't one product — it's an assembly, and the assembly matters as much as the material.
- Wide boards or panels form the base plane of the wall.
- Narrow battens cover the vertical seams between boards, both for the look and to break the water path at every joint.
- A weather-resistive barrier goes behind everything, lapped correctly at every seam, window, and penetration.
- Furring strips or a rain screen gap ideally sit behind the siding, giving any water that does get past the surface a way to drain and dry instead of sitting against the wall sheathing.
- Flashing at windows, doors, roof-to-wall transitions, and the base of the wall directs water away from the structure at every interruption in the siding plane.
Skip or shortcut any one of those layers and the whole system is compromised, no matter how good the boards themselves are. This is where a lot of board and batten installs go wrong — not because the siding material failed, but because the assembly behind it wasn't built to manage water.
Why We Only Install James Hardie Board & Batten
Board and batten is available in several materials, and we've made a deliberate call to install it in only one: James Hardie fiber cement. Here's the honest reasoning, not a sales pitch.
Cedar Board & Batten
Real cedar board and batten looks the part — it's the traditional material for this style, and it has genuine appeal. But cedar is a wood product, and in a climate with this much rain and this long a moss season, it needs consistent refinishing, caulking, and moisture monitoring to avoid cupping, splitting, and rot at the vertical seams where water concentrates. That's a real ongoing commitment, not a one-time cost, and most homeowners underestimate it until the maintenance bills start.
Vinyl Board & Batten
Vinyl board and batten is the low-cost option, and it's genuinely low-maintenance in the sense that it doesn't need painting. But it's a thin, flexible material that moves with temperature swings, and in driving rain it relies almost entirely on careful installation to keep water from tracking behind panels at the seams — there's very little material mass to fall back on if a detail is off. It also doesn't hold up as well to impact or long-term UV exposure as a rigid fiber cement panel.
LP SmartSide Board & Batten
LP SmartSide is an engineered wood strand product with a factory-applied treatment, and it performs reasonably well when installation is exact. But it's still a wood-based substrate, which means cut edges, fastener penetrations, and any gap in the factory coating are vulnerable to moisture intrusion — a real risk in a climate where wet weather is the rule, not the exception, for much of the year.
Why James Hardie
James Hardie fiber cement board and batten is non-combustible, dimensionally stable, and engineered specifically for wet Pacific Northwest climates through its HZ5 product line. It doesn't expand and contract the way wood or vinyl does, it holds paint and factory ColorPlus finishes far longer than wood siding holds field-applied paint, and it comes with a strong transferable warranty backed by a manufacturer that's been refining this exact climate application for years. We install it because it's the product we're willing to stand behind on a Lynden wall facing decades of rain, moss, and salt air — not because it's the cheapest or the fastest to hang.
Comparing Board & Batten Material Options
| Material | Moisture Resistance | Maintenance | Typical Lifespan | Fire Rating |
|---|---|---|---|---|
| Cedar | Moderate — needs sealed finish | High — refinish every few years | 15-25 yrs with upkeep | Combustible |
| Vinyl | Installation-dependent | Low — occasional cleaning | 20-30 yrs | Combustible |
| LP SmartSide | Good if coating stays intact | Moderate | 20-30 yrs | Combustible |
| James Hardie Fiber Cement | Engineered for wet climates (HZ5) | Low — factory finish, occasional wash | 30+ yrs to spec | Non-combustible |
Cost follows a similar order — cedar and Hardie generally sit above vinyl and LP on material price, but the comparison that matters more is total cost over the life of the siding once repainting, patching, and early replacement are factored in.
What Correct Installation Looks Like on a Lynden Home
A board and batten job can look identical from the curb and perform completely differently depending on what's underneath. Before we call any job finished, this is the standard we hold it to:
- Weather-resistive barrier installed and lapped correctly at every seam, window, and door — no shortcuts around penetrations
- Rain screen gap or furring strips behind the siding plane so water that reaches the back side can drain and dry
- Flashing integrated at every window head, door head, roof-to-wall intersection, and the base of the wall
- Fasteners rated for coastal and marine-influenced climates, driven to Hardie's specification depth and spacing
- Board and batten joints gapped per manufacturer spec — not caulked shut in a way that traps moisture
- Factory ColorPlus finish kept intact through installation, with any field-cut edges properly sealed
- Clearance maintained at grade, decks, and patios so siding isn't sitting in standing water or constant splash-back
Our Process, Start to Finish
Every board and batten job we take on in Lynden follows the same sequence:
- On-site assessment — we look at sun exposure, moss patterns on the existing exterior, drainage at grade, and any problem areas around windows or the roofline before we quote anything.
- Detailed estimate — a written scope covering material, the water management assembly behind it, and a realistic timeline, so there are no surprise line items mid-job.
- Tear-off and inspection — once old siding comes off, we check the sheathing underneath for hidden moisture damage before anything new goes up.
- Weather barrier and flashing installation — the part of the job nobody sees but that determines whether the wall stays dry for the next thirty years.
- Board and batten installation — hung and fastened to Hardie spec, with attention to gapping, corners, and trim details.
- Final walkthrough — we go over the finished wall with the homeowner before calling the job done.
Why Local Experience in Lynden Matters
A crew that already works in and around Lynden has already worked out the things that catch outside crews off guard here — how wind direction off open farmland pushes rain into west- and south-facing walls differently than it does in more sheltered parts of Whatcom County, how long a given wall stays shaded and prone to moss buildup, and how to plan a tear-off around the wetter stretches of the year so a home isn't left exposed between old siding coming off and new siding going up. That local pattern recognition is the difference between a board and batten install that's just been hung correctly and one that's been hung correctly for this specific property's exposure.
It also means straightforward answers on permitting and scheduling, because we're not learning the area on your project.
Caring for Board & Batten Siding After Installation
James Hardie board and batten is low-maintenance, not no-maintenance. A little seasonal attention keeps it performing for decades:
- Rinse the exterior periodically to keep moss and pollen from building up in shaded areas, especially before winter
- Keep gutters clear so overflow doesn't run down the wall face and concentrate at batten joints
- Trim back vegetation and tree cover that keeps a wall section shaded and slow to dry
- Watch for any caulk or sealant failure around windows and trim, and have it addressed before a wet season sets in
- Have the siding visually inspected every few years, particularly at the base of the wall and around penetrations
If you're weighing board and batten for a home in Lynden, we're happy to walk the property, talk through what your specific exposure calls for, and put together a straightforward, no-pressure estimate — just fill out the form below.