Anacortes Siding Board & Batten Siding for Guemes Island Homes
Guemes Island has a look that board and batten fits naturally — the vertical profile reads as rural and unfussy, which suits a lot of the island's housing stock, from older cabins to newer builds going for a modern-farmhouse feel. But a Guemes Island wall faces conditions that a lot of mainland Anacortes and Skagit County homes don't get in the same combination: salt-laden air coming off the water on essentially every side of the property, wind with nothing much to break it before it hits the siding, and heavy tree cover that keeps whole walls shaded and damp for most of the year. Board and batten is a joint-heavy profile — every seam between a board and its batten is a place water can try to work its way behind the wall — so how those joints are built matters even more here than it would on a more sheltered lot.
We install James Hardie fiber cement board and batten exclusively, and on an island site we plan the fastening, flashing, and joint detail around what this specific exposure does to a wall over decades, not around what looks finished on the day the crew packs up.
What Guemes Island's Climate Asks of a Board & Batten Wall
Salt Air From Every Direction, Not Just the Water Side
On a lot of mainland properties, salt exposure is mostly a concern for the wall that faces the bay. Guemes Island doesn't work that way — the island sits surrounded by the Salish Sea and Guemes Channel, so salt-tinged air reaches every exposure of a house, not just the water-facing one. Board and batten uses more total fasteners per square foot than standard lap siding, since both boards and battens need to be secured, which means fastener corrosion resistance is a whole-house consideration here rather than a one-wall problem.
Wind Exposure With No Windbreak
A lot of the island sits open to wind coming off the water with no dense urban development or windbreak to slow it down before it reaches a wall. Wind-driven rain finds vertical batten seams especially well, pushing water sideways into joints that a batten caulked tight — instead of properly lapped with room to shed water — will trap rather than release.
Heavy Tree Cover and a Long Moss Season
Much of Guemes Island sits under dense conifer cover, and the walls that sit in that shade — typically north- and east-facing exposures — stay damp far longer after a rain than walls that get regular sun. That combination of shade and moisture is exactly what moss needs, and on a profile like board and batten, a batten set flush against a board with no gap for airflow traps moisture right where moss and mildew take hold fastest.
Why Product Choice Matters More on This Profile
Board and batten magnifies whatever weaknesses a siding material already has, simply because it has more seams and more exposed edge than a standard lap profile. That's a big part of why we don't offer LP SmartSide, vinyl, Cemplank, Allura, primed spruce, or cedar board and batten. Those are legitimate products, and other contractors install them competently — but on a profile this joint-heavy, in an exposure this consistently salty and damp on every side, we standardized on one material system we're willing to stand behind completely.
| Material | Behavior at Batten Seams | Maintenance in This Exposure | Realistic Lifespan |
|---|---|---|---|
| James Hardie fiber cement | Dimensionally stable; doesn't swell or cup at the joint | Low; factory finish resists moss, salt staining, and fading | 30+ years with proper install |
| LP SmartSide (engineered wood) | More sensitive to moisture at cut edges and fastener holes | Moderate; edge sealing needs ongoing attention | 15-25 years, exposure-dependent |
| Vinyl | Can warp or gap at battens under wind load and temperature swings | Low, but hidden moisture problems are hard to spot | 20-30 years, variable |
| Cedar | Absorbs moisture at every seam without regular sealing | High; recurring repainting or resealing on shaded walls | 15-25 years with consistent upkeep |
Fiber cement's dimensional stability is the property that matters most on a wall built entirely out of vertical seams — it doesn't expand and contract with moisture the way wood-based products do, so the joints stay tight instead of opening up as the material moves. The factory-applied ColorPlus finish also means field-primed cut edges are the exception on a job, not the rule, which matters on an island where a follow-up trip to touch up field-painted siding is a bigger ask than it would be a few blocks from the shop.
What a Correct Board & Batten Install Actually Involves
Board and batten looks simple from the curb — vertical boards, battens over the seams — but a correct install has more happening behind that surface than most other profiles:
- House wrap or weather-resistive barrier installed and properly lapped before any siding goes on
- A drainage gap or rainscreen behind the siding so moisture that gets past the surface can dry out instead of sitting against the sheathing
- Corrosion-resistant fasteners at the manufacturer's specified spacing on every board and batten, not just enough to hold the material up
- Battens set with the clearance James Hardie's install spec calls for, not caulked tight, so the wall sheds water instead of trapping it
- Properly flashed and lapped transitions at windows, doors, corners, and the base of the wall
- Extra attention to shaded, tree-covered walls where airflow behind the siding matters most for keeping moss from taking hold
- Factory-cured ColorPlus finish preserved by cutting boards face-down and priming any field-cut edges before they go up
Skip any one of these and the wall can look fine for a season or two. The problems that follow — moss creeping in at seams, staining that won't wash off, soft spots at the base — take a few wet seasons on an exposed island lot to show up, which is exactly why they're easy for a rushed install to get away with until the homeowner is the one living with it.
Getting Material and a Crew to an Island Job Site
Guemes Island is ferry-access only, and that changes how a siding project gets planned in ways a mainland job doesn't have to think about. Material has to be staged and loaded correctly the first time, because a missed load or a forgotten piece of trim doesn't mean a quick trip back to the shop — it means waiting on the next available ferry crossing, and ferry service can be affected by weather, mechanical issues, or schedule changes with little notice. A crew that regularly works the island builds that reality into the schedule from the start: full material takeoffs done before the first crossing, contingency time built into the timeline, and a plan for where materials and equipment stage on-site so the job isn't stalled waiting on a run back to Anacortes.
This is one of the more overlooked parts of hiring for an island project. A contractor who's only ever worked mainland jobs and treats a Guemes Island bid the same way as one in town is more likely to run into scheduling surprises mid-project — which usually costs the homeowner time, not just the contractor.
Our Process for a Guemes Island Board & Batten Project
Walkthrough and Assessment
We start by looking at your specific walls — which face open water and wind directly, which sit under tree cover and stay damp longer, and whether the existing wall assembly already has moisture issues that need addressing before new siding goes up. New board and batten over a wall with hidden rot or poor drainage just buries the same problem under a fresh surface.
Planning the Logistics Before Install Day
Before crews or material make the crossing, we finalize batten spacing, corner details, and how the siding meets windows, trim, and rooflines, and we plan the ferry schedule and material staging around the scope of the job. Working these details out on paper first avoids the kind of field improvisation on an island job that can cost an extra crossing and a lost day.
Installation to Manufacturer Spec
Every fastener, gap, and flashing lap follows James Hardie's published installation requirements for this region's exposure, not a generic national standard. That's what keeps the manufacturer's warranty intact and what keeps the wall performing the way it's supposed to for decades rather than years.
Final Walkthrough
We walk the finished job with you, cover what little maintenance board and batten actually needs in this exposure, and make sure you know what to look for if you ever want to check the wall yourself down the road.
Why Hire a Crew That Already Works Guemes Island
Board and batten rewards familiarity with a specific site's exposure more than most siding profiles, because its failure points are subtle and slow to surface. A crew that's installed this profile on the island through multiple wet seasons already knows which walls need extra drainage detailing because of tree shade, how much wind load a given lot actually sees with no windbreak nearby, and how to plan a job so a missed ferry crossing doesn't turn into a week of delay. That's judgment that doesn't show up on a spec sheet or a generic bid — it's the difference between a wall that still looks and performs the same in fifteen years and one that's showing moss and seam staining by year five.
Cost Factors for Board & Batten on Guemes Island
Board and batten typically runs more per square foot than standard lap siding because of the added batten material and the extra labor of fastening and detailing two layers instead of one. On an island job, a few additional factors move the price beyond what a mainland estimate would account for:
| Factor | Why It Matters |
|---|---|
| Wall height and complexity | More corners, dormers, and transitions mean more cuts and flashing details |
| Existing wall condition | Rot or moisture damage found during tear-off needs repair before new siding goes up |
| Tree cover and shade exposure | Heavily shaded walls may need extra drainage detailing to manage moss risk |
| Ferry logistics and material staging | Larger jobs may need multiple crossings, planned around ferry schedule and capacity |
| Access and site conditions | Waterfront bluffs, gravel access, or limited staging space can add labor time |
We'll walk your specific property and give you real numbers based on your home and its exposure, rather than a rough square-footage estimate that doesn't account for what an island site actually involves.
Getting It Right the First Time
Board and batten isn't a forgiving profile to redo. Because the battens cover the seams between boards, correcting a bad install usually means pulling battens, boards, or both — and on an island job, that means scheduling a redo trip around the ferry all over again. That's part of why we treat the planning and detailing phase of an island project as seriously as the install itself: the cost of getting it right the first time is a lot lower than the cost of a second crossing to fix a wall that was installed wrong.
If you're weighing board and batten for a home on Guemes Island, we're happy to come out, walk the property, talk through what your specific walls need given their exposure and tree cover, and give you a straightforward, no-pressure estimate. There's a form below — reach out and we'll set up a time to take a look.