Lynden Siding Board & Batten Siding in Kendall: A Style That Has to Work as Hard as It Looks
Board and batten has a strong following in Kendall for good reason. The vertical lines suit the barns, outbuildings, and farmhouse-style homes scattered through this part of Whatcom County, and the deep shadow lines it throws give a home real texture instead of a flat wall of siding. But board and batten is also one of the least forgiving siding profiles when the material or the installation is wrong. The battens create dozens of extra seams and fastening points compared to lap siding, and every one of those seams is a place where water can get behind the wall if it isn't detailed correctly. In a climate like ours, that detail work is not optional — it is the difference between a wall system that lasts decades and one that starts showing rot at the bottom courses in five or six years.
What Kendall's Climate Actually Does to This Siding Profile
Kendall sits inland from the water, but Whatcom County as a whole lives under a steady flow of marine air moving in off the Salish Sea and up the Nooksack valley. That air carries moisture and a trace of salt with it, and combined with our long, driving rain events it keeps exterior walls damp for much longer stretches than most of the country ever deals with. Add the tree cover and shade that a lot of Kendall properties have, and you get a genuine moss season that can run most of the year on north-facing and shaded walls.
Board and batten amplifies all of this. The battens themselves catch and hold moisture along their edges, and if the gap behind them isn't ventilated properly, water that gets in has nowhere to dry out. Moss and algae take hold fastest on rough, absorbent surfaces that stay damp — exactly the condition you get with the wrong substrate or a batten system installed tight to the wall with no airflow. None of this means board and batten is a bad choice for Kendall. It means the material and the install both have to be built for exactly these conditions, not just for how the finished wall looks on a dry day.
The Three Climate Stresses This Siding Has to Survive Here
- Driving rain: wind-driven rain pushes water sideways into vertical seams, not just down the face of the wall — every batten joint is a potential entry point without proper flashing and sealant strategy
- Prolonged dampness: shaded, tree-lined lots common around Kendall keep walls wet longer after storms, which is what feeds moss, mildew, and — on the wrong substrate — rot
- Freeze-thaw cycling: winter cold snaps that follow wet stretches can crack or split absorbent materials that took on moisture before the freeze
What a Correctly Built Board & Batten Wall Involves
A board and batten wall is really two layers of defense: the water-resistive barrier and flashing system underneath, and the visible boards and battens on top. Homeowners rarely see the first layer, but it's the one that determines whether the second layer lasts.
Behind the Boards
Every board and batten install we do starts with a continuous water-resistive barrier, correctly lapped and taped at seams, with flashing integrated at every window, door, and horizontal transition. Where the wall assembly allows for it, we build in a drainage gap so that any moisture that does get past the outer boards has a path to drain and dry rather than sitting against the sheathing.
On the Face
The boards and battens themselves need consistent, code-compliant fastening — not just enough nails to hold the piece up, but the right pattern and penetration to keep the panel secure through wind and moisture cycling without splitting the material. Batten spacing has to be even and battens have to actually cover the board seams beneath them with enough overlap that rain can't track sideways into the joint. Caulking has its place at trim and terminations, but a board and batten wall that depends on caulk to keep water out of the field joints is a wall that will eventually leak — the flashing and drainage plane behind it are what actually keep water out.
Material Choice Matters More on This Profile Than Any Other
Because board and batten has so many extra seams and edges exposed to weather, the material behind the paint job matters more here than it does on a plain lap profile. This is the core reason we install James Hardie fiber cement exclusively and don't offer vinyl, LP SmartSide, cedar, or primed spruce as board and batten options.
| Material | How It Handles Kendall's Moisture & Moss Exposure | Long-Term Trade-Off |
|---|---|---|
| James Hardie fiber cement | Non-combustible, dimensionally stable, resists swelling and rot at cut edges and batten seams | Higher upfront material cost; requires proper fastening and factory-finish detailing at install |
| Cedar boards | Attractive natural look but absorbs moisture readily; battens can trap dampness against the wood | Ongoing refinishing, higher rot risk in shaded, damp areas, shorter service life without diligent upkeep |
| LP SmartSide (engineered wood) | Better than raw wood but still an organic wood-strand product; edges are vulnerable if the factory seal is compromised | Swelling and edge deterioration if moisture reaches the strand core, especially at exposed batten joints |
| Vinyl board & batten panels | Won't rot, but is a thin plastic skin that flexes, fades, and can distort in temperature swings | Limited color depth, visible seams, can crack in cold snaps, not repairable — only replaceable |
We're not saying every one of those products fails outright — plenty of homes carry them without incident for years. But in a climate that keeps walls damp as long as ours does, we've made non-combustible, moisture-stable fiber cement our standard rather than gambling on materials that depend on a perfect paint seal or a dry climate to perform. Hardie's factory-applied ColorPlus finish also matters specifically on board and batten, since the extra trim and batten pieces mean more finished edges — a factory finish holds color evenly across all of them instead of relying on field-applied paint to match.
Our Process for a Kendall Board & Batten Project
- On-site assessment: we look at sun and shade exposure, existing moisture damage, roofline drainage, and how water currently moves across the specific walls being resided
- Tear-off and inspection: removing the old siding lets us actually see the sheathing condition — this is where hidden rot or past water intrusion gets caught before it's covered up again
- Water-resistive barrier and flashing: continuous barrier, taped seams, and flashing at every penetration and horizontal break, built for our rain patterns rather than a bare-minimum install
- Board and batten installation: Hardie panels or boards installed to spec with correct fastening, batten spacing, and overlap
- Trim, transitions, and final detailing: corners, window and door surrounds, and any transitions to stone, stucco, or other materials sealed and finished correctly
- Walkthrough: we go over the finished job with you before we consider it done
Keeping a Board & Batten Wall Looking Right in This Climate
Even a well-built board and batten wall benefits from some basic upkeep in a climate like Kendall's. Homeowners who stay ahead of this rarely deal with major issues:
- Rinse shaded or north-facing walls once or twice a year to knock back early moss and algae growth before it takes hold
- Keep gutters clean and downspouts directed away from the wall base — a lot of siding failure starts with water dumping straight onto or behind the bottom courses
- Trim back trees and shrubs that keep a wall section shaded and damp longer than the rest of the house
- Have caulking at trim and terminations checked every few years — it's a small maintenance item and cheap to catch early, expensive to ignore
- Watch for any dark staining or soft spots at the base of boards or battens and have them looked at promptly rather than waiting
Why a Crew That Already Works in Kendall Matters
Board and batten forgives almost nothing when it comes to flashing detail, batten spacing, and moisture management, and the right approach genuinely changes depending on how exposed, shaded, or wind-driven a specific wall is. A crew that already works walls in and around Kendall has seen how this profile actually performs through a Whatcom County wet season — not just how it looks the day it goes up. That local track record is worth more than a manufacturer's spec sheet on its own, because it's been tested against the driving rain and long damp stretches this area actually produces.
What Drives the Cost of a Board & Batten Project
| Factor | Why It Affects Cost |
|---|---|
| Wall square footage and complexity | More corners, gables, and trim details mean more cut boards, battens, and labor time |
| Substrate condition | Rotted sheathing found at tear-off adds repair work before new siding can go on |
| Board and batten vs. panel system | Individual board-and-batten assembly takes more labor than pre-formed panel systems |
| Trim and finish detail | Custom window and door surrounds, corner treatments, and transitions add material and time |
| Access and site conditions | Steep grades, tree cover, or tight lot access common on Kendall properties can affect staging and labor |
Every one of these factors is specific to your home, which is exactly why we don't quote board and batten jobs off a generic square-footage number. If you're considering board and batten siding for a home in or around Kendall, we're glad to come take a look and put together a straightforward, no-pressure estimate — just fill out the form below to get started.