How is board and batten siding different to install compared to standard lap siding?

Board and batten has more vertical seams and more fastener penetrations per square foot, since each batten is fastened through the panel beneath it. That means more places for water to find a way in if flashing and sealing aren't done correctly, so the installation margin for error is smaller than with horizontal lap siding.

What should I ask a contractor before hiring them for board and batten siding?

Ask specifically whether they install a rainscreen air gap behind the panels, what fastener type they use, and whether they can walk you through their flashing details at windows and roof-to-wall transitions. A contractor who can answer those questions specifically, rather than in general terms, is more likely to build an assembly that holds up in a wet coastal climate.

Why does this company only install James Hardie and not other fiber cement or engineered wood brands?

We standardized on James Hardie because of its HZ5 climate-engineered product line, factory-applied ColorPlus finish, and strong transferable warranty, all of which we've found perform consistently in wet, salt-air conditions. It lets us stand behind one system we know well rather than juggling installation specs across multiple product lines.

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

Hardie's board and batten system uses wider flat panels with vertical battens fastened over the seams, creating the look of individual boards without the horizontal shadow lines of lap siding. Both are made from the same fiber cement material and carry the same ColorPlus finish options, so the choice mostly comes down to appearance and the home's architectural style.

Does Sumas get the same weather exposure as the rest of the Blaine area?

Homes in and around Sumas deal with the same broader Whatcom County conditions as the rest of the area — sustained wet weather, driving rain, and a long moss season that's hard on any exterior surface. Exact exposure varies by lot, tree cover, and which direction a wall faces, which is why we evaluate each property in person rather than quoting off a general assumption.

Sumas Board & Batten Siding | Blaine, WA Install Crew

Board & Batten Siding Built for the Sumas Side of Blaine

Board and batten has become one of the most requested siding profiles for homes in and around Sumas, and it's easy to see why. The vertical lines read as clean and modern on newer builds, but they also sit comfortably on older farmhouses and ranch-style homes that make up a lot of this part of Whatcom County. What most homeowners don't realize until they've lived through a few Pacific Northwest winters is that board and batten is far less forgiving of a rushed installation than lap siding. The wide flat panels and narrow battens create more seams, more fastener penetrations, and more opportunities for water to find a way behind the cladding if the assembly underneath isn't done right.

We install board and batten siding for homes throughout the Blaine area, including Sumas, and this page covers what that job actually involves here specifically: the climate this siding has to survive, what a correct installation looks like layer by layer, and why we only put James Hardie fiber cement behind our own board and batten work.

What the Local Climate Does to Vertical Siding

Homes near Blaine deal with a combination of conditions that's tougher on exterior cladding than most homeowners expect. Salt-laden air moving in off the water accelerates corrosion on fasteners, trim caps, and any exposed metal flashing that isn't rated for it. Driving rain, often pushed sideways by wind rather than falling straight down, tests every horizontal seam and every place a batten meets a window or door — exactly the joints that board and batten has more of than a standard lap profile. And the long stretch of damp, low-sun months every year means moss and algae get a real foothold on anything that stays wet longer than it should.

Board and batten siding doesn't fail because the profile is wrong for this climate — it fails when the installation doesn't account for the climate. Flat, wide panels behind narrow battens can trap moisture against the wall assembly if there's no way for water to drain and no way for the wall to dry out between storms. That's the detail that separates board and batten that lasts thirty years from board and batten that needs board repairs or paint touch-ups within five.

Why This Matters More for Board & Batten Specifically

Every batten strip is fastened through the panel below it, which means more penetrations per square foot than a horizontal lap profile. Every one of those penetrations is a potential water entry point if it isn't sealed and backed correctly. On a home exposed to sideways rain, that's not a minor detail — it's the difference between a wall that sheds water and a wall that slowly absorbs it.

What a Correct Board & Batten Job Involves

A board and batten installation done to a standard that holds up in this climate has several layers working together, not just a nice-looking exterior. Here's what we build behind the visible siding on every job:

A drainable weather-resistive barrier installed over the sheathing, lapped correctly at every seam, top over bottom, so water is directed out and down rather than trapped.
A rainscreen air gap behind the panels, using vertical furring strips, so any moisture that does get behind the cladding has somewhere to drain and air can circulate to dry the wall assembly.
Correct flashing at every window, door, and horizontal transition — head flashing, kick-out flashing at roof-to-wall intersections, and z-flashing wherever panels stop and start.
Fasteners rated for coastal exposure, driven at the manufacturer's specified pattern and depth — not just wherever they hit a stud easily.
Sealed and backed batten joints, with the right gap and backer rod so caulking has something to bond to instead of bridging a gap it can't actually seal long-term.

Skip any one of these and the siding can still look right for a year or two. The problems that show up later — panel cupping, streaking below battens, soft trim, paint that won't hold — almost always trace back to one of these steps being shortcut.

Why We Only Install James Hardie Fiber Cement

We don't offer board and batten in vinyl, engineered wood, or primed spruce, and that's a deliberate standard, not a lack of options. Each of those alternatives has real strengths, but each also has a trade-off that shows up in exactly the conditions Sumas-area homes face year-round.

Vinyl board and batten is affordable and low-maintenance in the sense that it never needs painting, but it expands and contracts with temperature swings, can warp under sustained sun exposure, and offers no real fire resistance. Engineered wood products perform well when installed and maintained exactly to spec, but they're more sensitive to sustained moisture exposure at cut edges and joints — a real concern in a climate with a long wet season. Primed spruce or cedar board and batten looks excellent when new, but it's a wood product at heart: it moves seasonally, it needs repainting on a real cycle, and any gap in the finish becomes a moisture entry point.

James Hardie fiber cement is non-combustible, dimensionally stable across temperature and moisture swings, and comes with a factory-applied ColorPlus finish that's baked on rather than field-painted — which matters when you're trying to keep a finish looking right through repeated wet-dry cycles. Hardie's HZ5 product line is specifically engineered for regions with cold, wet climates, which describes this part of Whatcom County accurately. It also carries a strong transferable warranty, which protects the investment if the home changes hands.

Color and Finish Considerations for Board & Batten

Board and batten's vertical lines show color and shadow differently than lap siding — the battens themselves cast a shadow line that shifts through the day. ColorPlus finishes are formulated to resist fading and chalking, which keeps that shadow-line contrast looking sharp for years rather than washing out. We can walk through Hardie's board and batten panel and batten options during your estimate, including which finishes hold up best against sustained rain exposure on wind-facing walls.

Cost Factors for Board & Batten Siding

Every home is different, but the variables that drive price on a board and batten job are consistent. This isn't a quote — it's what to expect the conversation to cover:

Factor	Why It Affects Cost
Existing siding removal	Tear-off and disposal of old material adds labor before new siding can go on
Sheathing condition	Rot or water damage found underneath needs repair before the weather barrier goes up
Rainscreen detailing	Furring strip installation adds labor but is non-negotiable for long-term performance here
Window and door count	Each opening needs correct flashing, which is labor-intensive on a board and batten profile
Home height and access	Second-story and steep-site work requires more staging and safety setup
Trim and corner details	Custom corner boards and trim profiles affect both material and labor cost

We provide a written, itemized estimate after walking the property in person — not a rough number over the phone.

How Our Process Works

Homeowners considering board and batten want to know what actually happens between the first call and the final walkthrough. Here's the sequence we follow:

On-site evaluation: we inspect the existing siding, sheathing, and trim to identify any hidden moisture damage before quoting.
Written estimate: a detailed breakdown of material, labor, and any repair work found during the evaluation.
Product selection: choosing Hardie panel width, batten spacing, and ColorPlus finish based on the home's style and exposure.
Tear-off and prep: removing old siding, repairing any damaged sheathing, and installing the weather-resistive barrier correctly lapped.
Rainscreen and flashing: furring strips and all window, door, and transition flashing go in before a single panel is hung.
Panel and batten installation: installed to Hardie's fastening specifications, not shortcuts that happen to look fine at close-out.
Final walkthrough: we go over the finished work with you directly before calling the job done.

Signs Existing Siding Is Already Struggling

If you're not sure whether your current siding needs attention, these are the signs worth taking seriously in this climate:

Dark streaking or green tinge below battens or under windows — early moss and algae growth
Soft or spongy spots when pressed near the base of the wall or below window sills
Visible gaps or cracking at batten joints where caulking has failed
Paint or finish that's chalking, peeling, or has an uneven sheen
Warping, cupping, or bowing panels, especially on wind-facing walls
Rust staining running down from fasteners or metal trim pieces

Any one of these on its own might just need a repair. Several together usually mean the wall assembly behind the siding has been taking on moisture for a while.

Why Hiring a Crew That Already Works This Area Matters

Board and batten installed correctly for a dry inland climate isn't automatically correct for a home exposed to salt air and driving rain. A crew that hasn't worked this specific stretch of Whatcom County regularly might not default to a full rainscreen assembly, might use standard fasteners instead of coastal-rated ones, or might not think through kick-out flashing at a roof line the way it needs to be thought through here. None of that shows up on install day — it shows up two or three winters later.

We work on homes throughout the Blaine area, including Sumas, which means we're not guessing at what this climate does to an exterior wall over time. We're building to what we've seen hold up here, not to a generic national spec sheet.

Maintenance After Installation

James Hardie board and batten is low-maintenance, not no-maintenance. A rinse-down once or twice a year knocks back moss and algae before it takes hold, especially on north-facing walls that stay shaded and damp longer. Caulking at batten joints and trim should be checked periodically, and any settling cracks in the substrate should be addressed before they telegraph through the finish. Beyond that, ColorPlus finishes are designed to go a long stretch without needing repainting — which is a real advantage over a wood-based board and batten system in this climate.

If you're weighing board and batten for a home in Sumas or elsewhere near Blaine, we're glad to walk the property, look at what's there now, and give you a straight answer on what it would take to do it right. Reach out for a free, no-pressure estimate — there's no obligation and no pressure to sign anything on the spot.