Siding Built for a Peninsula, Not Just a Zip Code
Point Roberts sits on its own patch of land at the southern tip of the Tsawwassen Peninsula, separated from the rest of Whatcom County by water and the international border. That geography isn't just a curiosity — it shapes what happens to the outside of a house here. Homes on this point take wind and salt spray off the water from multiple directions, sit under a marine layer for a good chunk of the year, and rarely get the kind of drying wind that helps siding shed moisture quickly. If you're planning a siding project in Point Roberts, the product and the installation both need to account for that, not just the general Pacific Northwest climate that gets talked about for the rest of Whatcom County.
We're a Ferndale-based crew, and Point Roberts is part of our regular service area. That matters more than it sounds like it should — logistics, material staging, and scheduling around the border crossing are all things we've already worked out, so they don't become your problem during a project.

What Point Roberts' Climate Actually Does to Siding
Salt Air
Being surrounded by water on three sides means salt-laden air is a near-constant presence. Salt is corrosive to fasteners and hard on paint films and factory finishes that aren't engineered to resist it. Over years, cheap or under-rated finishes chalk, fade unevenly, or let corrosion start at cut edges and fastener heads long before a homeowner expects to be thinking about siding again.
Driving Rain
Rain here doesn't just fall — wind off the water drives it sideways into wall assemblies, especially on west- and south-facing elevations. That means water is being forced at seams, laps, and penetrations (windows, doors, hose bibs, vents) far more aggressively than on a sheltered inland lot. Flashing details and lap installation that would be "good enough" in a calmer microclimate aren't good enough here.
A Long Moss Season
Cool, damp, and shaded conditions for much of the year give moss and algae a long runway to establish on any siding surface that stays damp or sits in constant shade — north walls, areas under overhangs with poor airflow, and anywhere water isn't shedding cleanly. Moss holds moisture against the surface, which accelerates whatever degradation the material is already prone to.
None of these three factors is unique to Point Roberts by itself. What's unique is having all three, consistently, on a small landmass with limited wind relief. That combination is why we treat Point Roberts as a higher-demand siding environment, not just another stop on the route.
Why We Only Install James Hardie Fiber Cement Here
We don't install vinyl, LP SmartSide, primed wood, cedar, or other fiber cement brands. That's a standard we hold company-wide, but it's especially easy to justify on a site like Point Roberts:
- Non-combustible core — fiber cement doesn't feed a fire the way wood-based products can, which matters on a peninsula where emergency response can take longer to arrive.
- Moisture-stable composition — Hardie's fiber cement doesn't swell, rot, or delaminate the way wood-based siding can when it stays damp for extended stretches, which is exactly the condition a long moss season creates.
- ColorPlus factory finish — a baked-on finish applied and cured under controlled conditions holds color and resists chalking better against salt air and UV than field-applied paint, and it carries its own finish warranty separate from the substrate.
- HZ5 product engineering — Hardie makes climate-specific formulations, and the HZ5 line is built for colder, wetter regions like ours. It's a materially different product than what gets installed in dry climates, not just a marketing label.
We're not going to tell you vinyl or engineered wood are junk — they have real uses and plenty of installed examples that hold up fine in the right conditions. But on a site with this much salt exposure, driving rain, and shade-driven moss pressure, we've made the call that fiber cement engineered for this climate is what we're willing to put our name behind. That's a professional standard, not a knock on every other product on the market.
What a Correct Installation Looks Like on This Peninsula
Material choice only solves half the problem. Most siding failures we get called to diagnose — regardless of brand — trace back to installation details, not the product itself. On a site exposed to driving rain from multiple directions, these details carry more weight than usual:
Weather-Resistive Barrier and Rainscreen
A continuous, properly lapped weather-resistive barrier behind the siding is the backup plan for the water that gets past the cladding — and on a wind-driven-rain site, some water will get past the cladding. Where wall assemblies allow for it, a rainscreen gap gives that incidental moisture a path to drain and dry instead of sitting against the sheathing.
Flashing at Every Penetration
Windows, doors, hose bibs, light fixtures, and vents are where wind-driven rain finds its way in. Each one needs proper flashing integrated with the water-resistive barrier — not caulk used as a substitute for flashing. Caulk fails; correctly lapped flashing sheds water by design and keeps working after the caulk eventually does fail.
Fastening and Clearances
Hardie specifies fastener type, spacing, and embedment for a reason — under-driven or over-driven fasteners, or the wrong fastener metal in a salt-air environment, are a common source of long-term problems. Ground clearance and clearance from roof lines, decks, and grade also matter more here, since they control how much standing moisture the bottom courses of siding are exposed to.
Caulking and Joint Treatment
Butt joints and trim transitions need to be treated with a sealant rated for the movement and moisture exposure they'll see — and installed at the right stage of the sequence, not as a way to cover for a gap that shouldn't be there in the first place.
Our Process for a Point Roberts Project
- On-site assessment — we look at wall orientation, current moss/algae presence, existing moisture damage, and how the house is exposed to wind and rain off the water.
- Material and color plan — HZ5 panel or lap selection and ColorPlus color, matched to your home and the amount of sun/shade each elevation gets.
- Tear-off and inspection — removing existing siding lets us check the sheathing and framing underneath for any moisture damage that needs to be addressed before new siding goes up.
- Barrier and flashing installation — weather-resistive barrier, rainscreen where applicable, and flashing at every penetration, done before a single piece of siding is hung.
- Siding installation to spec — correct fastening, clearances, and joint treatment throughout.
- Final walkthrough — checking laps, trim, caulking, and touch-up before we call the job done.
Why a Ferndale Crew That Already Works Point Roberts Matters
Point Roberts isn't a drive-through stop for most Whatcom County contractors — it takes planning to get materials and crews there efficiently, and a border crossing adds a variable that not every contractor wants to deal with regularly. A crew that already routes jobs there knows how to stage materials, plan crew time, and keep a project moving without surprise delays eating into your schedule. That's on top of already understanding the exposure conditions specific to this peninsula rather than applying a generic coastal-Washington approach.
Cost Factors for a Point Roberts Siding Project
| Factor | Why It Affects Cost |
|---|---|
| Home size and wall complexity | More corners, gables, and trim detail mean more cutting, flashing, and labor time |
| Existing siding removal | Tear-off and disposal add labor beyond a straightforward install |
| Sheathing or framing repair | Moisture damage found during tear-off needs to be fixed before new siding goes up |
| Product line and profile | HZ5 lap, panel, and shingle-style profiles have different material and labor costs |
| ColorPlus vs. field-painted | Factory finish costs more up front but avoids a repaint cycle later |
| Site access and staging | Material delivery and crew logistics for a Point Roberts site factor into scheduling and cost |
We don't publish flat pricing because these factors vary too much house to house — but we'll walk your home with you and explain exactly what's driving your number before you commit to anything.
A Practical Checklist Before You Hire
- Ask what weather-resistive barrier and flashing details they use — not just what siding brand they install
- Confirm they're using fasteners rated for salt-air exposure, not whatever is standard elsewhere
- Ask how they handle window, door, and penetration flashing specifically
- Find out if they've worked in Point Roberts before and understand the logistics involved
- Get a written scope that specifies product line, color system, and installation details — not just "siding replacement"
- Ask what happens if moisture damage is found once old siding comes off
Let's Take a Look at Your Home
If your Point Roberts home is due for new siding — or you're seeing early signs of moss, moisture staining, or finish failure — we're happy to come take a look. There's no pressure and no cost to get our honest read on what your home needs and what a correct James Hardie installation would involve. The form below is the easiest way to get that conversation started.
Ferndale Siding