What's the difference between board and batten and standard lap siding?

Board and batten uses vertical panels or boards with narrower battens covering the seams, while lap siding uses overlapping horizontal boards. Board and batten has more vertical seams and fastener points, so it demands more careful flashing and fastening, which matters more in a wet, wind-exposed area like this one.

How do I check whether a siding contractor is actually qualified for a coastal job like this?

Ask specifically about rainscreen and drainage plane practices, fastener and flashing grades, and whether they follow manufacturer installation specs rather than general carpentry habits. A contractor who can't explain how they handle wind-driven rain and salt exposure on vertical siding hasn't done much of it.

Why don't you install vinyl or engineered-wood board and batten if it's cheaper?

We standardized on James Hardie fiber cement because it holds up better under sustained salt air and wind-driven rain exposure over the long run, and it carries a stronger factory finish and warranty. We'd rather install one product well than offer several we can't fully stand behind.

What is HZ climate-engineered Hardie siding, specifically?

James Hardie makes region-specific formulations (HZ5, HZ10, etc.) engineered for different climate zones' moisture, freeze-thaw, and humidity conditions. For a Pacific coastal location, that means a formulation built around sustained wet weather and marine air rather than a generic one-size-fits-all product.

Does Point Roberts' separation from the mainland affect scheduling or material delivery for a siding project?

Yes — deliveries and crew trips have to account for the border crossing, so timing is planned differently than a job elsewhere in Whatcom County. A crew with an established process for this does it routinely; one without that experience can end up with delays that leave a wall exposed longer than it should be.

Board & Batten Siding for Point Roberts Homes

Board & Batten Siding Built for a Peninsula Climate

Point Roberts sits on its own peninsula, surrounded by water on three sides and cut off from the rest of Whatcom County by the international border. That geography gives homes there a particular kind of exterior exposure: near-constant salt-laden air off the water, wind-driven rain that comes in sideways during winter storms, and a long, damp moss season that starts earlier and lasts later than it does even a few miles inland. Board and batten siding — with its clean vertical lines and strong shadow reveal — is one of the most popular looks for the cottages, farmhouse-style homes, and newer builds going up in and around Point Roberts. But the look only holds up if the material and the installation are matched to what this specific stretch of coastline actually does to a house.

This page covers board and batten siding specifically for Point Roberts homes: what the local climate demands from it, what a correct installation looks like, how we approach the work, and why we only install James Hardie fiber cement for this profile rather than the wood, engineered-wood, or vinyl versions of the same look.

What Salt Air, Driving Rain, and Moss Actually Do to Board & Batten

Board and batten is a vertical siding pattern — wide panels or boards with a narrower strip (the batten) covering each seam. Compared to horizontal lap siding, it has more vertical seams and more fastener penetrations per square foot, which means more opportunities for water to find a way in if the details aren't right. In a marine environment like Point Roberts, three things work against it constantly:

Salt air corrosion — airborne salt attacks unprotected or low-grade fasteners, staples, and metal flashing over time, leading to streaking, rust, and eventually loose battens.
Wind-driven rain — storms coming off the water don't just fall, they push. Rain gets forced sideways into any gap at a seam, a butt joint, or a fastener hole that isn't properly sealed or flashed.
Moss and algae growth — the extended damp season means north-facing and shaded elevations stay wet longer, which is exactly what moss needs to take hold on porous or textured surfaces.

None of these problems are unique to Point Roberts. What's unique is how much of the year they're all active at once, given the marine exposure that defines this part of Whatcom County.

Why Vertical Profiles Are More Sensitive to These Conditions

Every vertical seam in a board and batten wall is a potential water path if it isn't detailed correctly. On a well-built wall, the batten overlaps the seam enough to shed water, the fasteners are placed and spaced to manufacturer spec, and there's a drainage plane behind the siding so any moisture that does get past the surface has somewhere to go besides the wall sheathing. Skip any one of those steps and a board and batten wall in a high-exposure spot like Point Roberts will show problems years before the same mistake would show up on a sheltered inland wall.

What a Correct Board & Batten Installation Requires Here

A board and batten job that's going to hold up on this peninsula needs more attention to a handful of details than the same job would in a drier, more sheltered part of the county:

A rainscreen gap. A vertical furring strip or drainage mat behind the siding creates an air gap so bulk water and trapped moisture can drain and dry out instead of sitting against the wall sheathing.
Correct batten overlap and fastening. Battens need to cover the panel seam with enough margin, and fasteners need to land in the right zone with the right spacing — not just "close enough."
Corrosion-resistant fasteners and flashing. Standard fasteners and bare metal flashing degrade faster in salt air. Stainless or coated fasteners and proper flashing metals matter more here than inland.
Sealed and flashed penetrations. Every point where the siding is interrupted — windows, vents, hose bibs, light fixtures — needs proper flashing and sealant, not just caulk smeared over the gap.
A factory finish that resists the elements. Field-applied paint or stain on wood or engineered wood siding has to fight salt air and moisture from day one; a factory-cured finish holds color and sheds water better over the long run.

Where Corners Get Cut (and Why It Matters More on This Peninsula)

The most common shortcuts on board and batten jobs are skipping the rainscreen gap to save labor, under-lapping the battens to save material, and using whatever fasteners are on the truck instead of the ones spec'd for coastal exposure. Inland, some of these shortcuts might not show consequences for a decade. On a house exposed to the wind and salt coming off the water around Point Roberts, they tend to show up as staining, soft spots at the base of boards, or loose battens within a few winters.

Why We Install Only James Hardie for Board & Batten

We install James Hardie fiber cement exclusively — we don't offer LP SmartSide, vinyl board and batten, Cemplank, Allura, primed spruce, or cedar. That's a deliberate standard, not a sales preference, and it matters most on a profile like board and batten where seams and fasteners are doing a lot of work against the weather.

How the Common Alternatives Compare in This Setting

Each of these products has real strengths. Where they run into trouble is specifically the combination of vertical seams and sustained marine exposure:

Vinyl board and batten is affordable and low-maintenance in mild conditions, but it's a thinner material that can flex, warp, or fade faster under strong UV and temperature swings, and it relies on overlapping pieces rather than a sealed, flashed system — a weaker match for wind-driven rain.
LP SmartSide is engineered wood with a resin-treated strand substrate that performs well when installation and caulking are kept up on schedule, but wood-based substrates are inherently more moisture-sensitive than fiber cement, and a missed re-caulk cycle in a wet climate carries more consequence.
Primed spruce or cedar board and batten gives a natural look many homeowners love, but solid wood needs an ongoing paint or stain maintenance cycle, and that cycle gets more demanding — not less — in a location with this much moisture and salt exposure.

James Hardie fiber cement is non-combustible, dimensionally stable in wet-dry cycling, and available in HZ climate-engineered formulations built for exactly this kind of Pacific coastal exposure. The ColorPlus factory finish is baked on and warrantied against fading and peeling, which matters on a material that's going to spend its life in salt air. It carries a strong transferable warranty, which is worth something on a peninsula where a meaningful share of homes eventually change hands.

Our Process for Board & Batten Work in Point Roberts

Point Roberts is part of Whatcom County, but it's physically separated from the mainland by the border, which means every material delivery, crew trip, and equipment run has to account for that. A crew that already has a system for staging materials, scheduling around border crossings, and timing weather windows is going to run a tighter, less exposed job than one figuring it out on the fly.

What We Actually Do on Site

Assess the exposure. We look at which elevations take the most wind-driven rain and salt spray, and which stay shaded and damp long enough to grow moss, before we finalize the install plan.
Confirm the wall assembly. We check what's behind the existing siding, whether a rainscreen gap needs to be added, and what flashing and moisture barrier work is needed before the first panel goes up.
Stage for the weather window. Given how much of the calendar here runs wet, we plan the tear-off and dry-in stage tightly so sheathing isn't left exposed longer than it has to be.
Install to spec, not by eye. Batten overlap, fastener placement, and flashing details follow manufacturer specification — the same details that separate a board and batten wall that lasts from one that doesn't.
Detail every penetration. Vents, fixtures, and trim transitions get flashed and sealed as part of the install, not patched afterward.

Cost Factors for Board & Batten in This Area

Board and batten pricing depends on more than square footage. In a high-exposure, peninsula location like Point Roberts, a few factors move the number more than they would elsewhere in the county:

Factor	Why It Affects Cost Here
Rainscreen / drainage plane addition	Extra labor and material to add a furring or drainage mat system behind the siding, which matters more given local rain and moisture exposure
Existing wall condition	Tear-off may reveal moisture or moss-related damage to sheathing that needs repair before new siding goes on
Fastener and flashing grade	Corrosion-resistant fasteners and coastal-grade flashing cost more than standard-grade materials but last longer against salt air
Home elevation and roofline complexity	More seams, dormers, and trim transitions mean more detailing work per square foot on a vertical profile
Logistics to the peninsula	Material delivery and crew scheduling around the border crossing is a real planning factor, not just a formality

Maintaining Board & Batten Siding in a Marine Climate

Fiber cement board and batten is low-maintenance compared to wood, but "low-maintenance" doesn't mean "no maintenance," especially with the salt and moisture load this location sees. A simple annual routine goes a long way:

Rinse road-facing and water-facing elevations periodically to knock off accumulated salt residue.
Check caulking at trim, window, and penetration joints once a year and touch up anything that's cracked or pulled away.
Look at shaded and north-facing walls for early moss or algae growth and address it before it spreads.
Walk the batten lines after major windstorms to check that nothing has worked loose.
Keep gutters and downspouts clear so runoff isn't sheeting down the wall face during heavy rain.

Why Local Experience Matters More Here Than It Sounds

A lot of siding contractors can install board and batten competently on a normal inland wall. Far fewer have actually worked through what it takes to do the job right on an exposed peninsula that's logistically separated from the rest of the county — planning around the border, timing the work against a longer wet season, and knowing which elevations of a Point Roberts home need the extra flashing and fastener attention before a problem ever shows up. That's the difference between a board and batten install that looks right on install day and one that still looks right in ten winters.

If you're planning a board and batten project in Point Roberts, we're happy to walk the property, look at your specific exposure, and put together a straightforward, no-pressure estimate using the form below.