Semiahmoo Siding Installation on Cherry Point's Open Shoreline
Cherry Point sits on the Strait of Georgia shoreline in far northern Whatcom County, between Birch Bay and Ferndale, on a stretch of coast with very little to break the wind coming off the water. It's a rural, low-density area — larger lots, a mix of shoreline-facing homes and properties set back toward the farmland inland — and that openness is exactly what makes siding installation here a different job than the same work a few miles inland. This page is about siding installation specifically for Cherry Point homes: what a correct job looks like, what the local climate demands from it, and why the installation itself matters more than which brand name is on the panel.
We install James Hardie fiber cement siding exclusively. Everything below assumes that system, because it's the only material we install to spec on homes in this area, and because the climate here doesn't leave much room for materials or installation shortcuts that only hold up in gentler conditions.
What Cherry Point's Climate Demands From an Installation
Salt Air With No Windbreak
Homes on or near the water at Cherry Point sit in salt-laden air as a daily condition rather than an occasional weather event, and with open water and few trees or structures to slow it down, that air moves across the property more directly than it would on a sheltered inland lot. Salt exposure accelerates corrosion in fasteners, flashing, and trim hardware. An installation that uses standard-grade hardware because it's cheaper or easier to source will show rust streaking and loosening trim well before the same install would on a home set back from the shoreline.
Driving Rain That Doesn't Fall Straight Down
Wind off the Strait pushes rain sideways into panel joints, window flashing, and trim seams instead of letting it run straight down the wall. That's a heavier moisture load on the water-resistive barrier and every flashing detail behind the siding than most homes even elsewhere in Whatcom County ever see. A barrier that's lapped and taped correctly sheds that wind-driven water before it reaches the sheathing; one that's rushed gives it a path straight in.
A Moss Season That Runs Most of the Year
Mild temperatures and near-constant humidity mean any wall surface that stays damp becomes a growth surface eventually, and Cherry Point's open, low-lying setting doesn't shorten that season the way a drier, more sun-exposed site might. Installation detail matters more here than people expect — proper clearance at the base of the wall, correct drainage-plane detailing, and siding that isn't crammed tight against trim all give a wall the chance to actually dry out between wet spells instead of staying damp continuously.
Why the Material Choice Still Comes Down to James Hardie
We used to install a wider range of siding products before standardizing on one system. That decision came from repeated tear-offs and service calls on exposed, open-water properties like the ones along this stretch of coast — not from a supplier relationship. James Hardie's fiber cement resists the swelling, cupping, and finish breakdown that wood-based and engineered-wood products are more prone to after repeated wetting, and its factory-applied ColorPlus finish holds color and resists chalking far longer than a field-applied paint job. We don't install LP SmartSide, vinyl, Cemplank, Allura, primed spruce, or cedar. Each has a place in the broader market, but on a site with this much open exposure, we'd rather install one system correctly and stand fully behind it than offer a cheaper option that quietly shifts long-term maintenance risk onto the homeowner.
What a Correct James Hardie Installation Actually Involves
Fastening and Spacing
Hardie publishes exact fastener type, spacing, and placement requirements that vary by product line and by how exposed the wall is. Following that spec fully — not a simplified version of it — is what keeps panels secure through open wind loads off the water, and it's also what keeps the manufacturer's warranty intact if a problem ever surfaces down the road.
Clearance Above Grade and Rooflines
Hardie specifies a minimum clearance between the bottom of the siding and grade, decks, roofing, and other horizontal surfaces. That clearance keeps the lowest course of siding out of standing water and splash-back, which is a common failure point on rural lots where grading has shifted over the years or where a deck or patio was added after the original siding went up.
Flashing and Sealant at Every Penetration
Windows, doors, vents, and exterior fixtures all break the plane of the siding, and each break is a place water can get behind the cladding if it isn't flashed correctly. This is the slowest and least visible part of an installation, and it's usually the part that determines whether a wall stays dry behind the siding for decades or starts trapping moisture within a few wet seasons.
Sealing Field-Cut Edges
Every panel cut on site — around a window opening, at a corner, at the end of a run — needs its cut edge sealed or primed per Hardie's specification before it goes up. An unsealed field cut is one of the more common places fiber cement actually takes on water, and it has nothing to do with the material itself; it's a step that got skipped during installation.
Installation Shortcuts That Fail Fastest on Open Water Sites
| Shortcut | What it looks like on install day | How it shows up later at Cherry Point |
|---|---|---|
| Standard fasteners instead of corrosion-resistant hardware | No visible difference | Rust streaking and loosened panels within a few years of open salt exposure |
| Skipped clearance at grade or deck ledger | Siding looks flush and clean | Wicking, softness, and paint failure at the bottom courses |
| Rushed flashing at windows and doors | Looks sealed from the outside | Hidden moisture intrusion, often not caught until interior staining appears |
| Unsealed field-cut edges | Cuts look clean and painted | Localized swelling at the cut, worse on wind-facing walls |
| Panels installed with no drainage gap | Appears tightly and neatly fitted | Trapped moisture and persistent moss that keeps returning after cleaning |
Our Installation Process, Step by Step
Site and Exposure Assessment
Before pricing anything, we walk the property and look at how each wall faces the water and wind, which sides sit in shade or under tree cover, and whether existing moss buildup or staining points to a chronic moisture issue rather than a one-time problem.
Tear-Off and Sheathing Check
Old siding comes off and the sheathing underneath gets inspected before any new material goes up. New siding over damaged sheathing just buries the problem for a few years; we'd rather find rot or soft spots now, even if it adds a step to the schedule.
Weather Barrier and Flashing
The water-resistive barrier goes on with proper overlap and taped seams at every penetration before flashing and siding go over it. On a site this exposed, this hidden layer does most of the actual work of keeping wind-driven rain out of the wall assembly.
Siding Installed to Manufacturer Spec
Panels go up following Hardie's fastening, spacing, and clearance requirements as the standard, not an option. Field cuts get sealed as they're made, not batched at the end of the day.
Final Walkthrough
We walk the finished job with the homeowner, confirm the work matches what was estimated, and go over what basic upkeep looks like on a property with this much open water exposure.
New Construction Versus Re-Siding an Existing Home
Both jobs demand the same attention to spec, but they're not identical. New construction means installing onto fresh sheathing and a new water-resistive barrier with no unknowns behind the wall — the sequence still matters, but there's no guesswork. Re-siding an existing Cherry Point home usually means tear-off followed by an honest look at what the original construction left behind: inadequate clearances, missing flashing, or a barrier that was never installed correctly in the first place. Re-siding just adds a discovery phase; the installation standard itself doesn't change.
Cost and Timeline Factors for a Cherry Point Installation
Every estimate is specific to the house, but a few factors consistently move both price and schedule on an installation out here:
| Factor | Why it matters |
|---|---|
| Square footage and number of stories | More wall area and height mean more labor and, on taller walls, more staging equipment |
| Trim and window complexity | More flashing and cutting work is required around windows, corners, and roofline transitions |
| Sheathing condition found during tear-off | Rot or water damage discovered underneath old siding adds repair scope before new siding can go up |
| Exposure to open water and wind | Water-facing walls typically warrant closer attention to flashing and drainage detail |
| Product line and ColorPlus selection | James Hardie offers multiple panel styles, textures, and factory finishes at different price points |
Weather windows matter more for scheduling here than on a typical inland job. Sustained wind off the Strait can shut down safe staging and panel handling on days that would be perfectly workable a few miles inland, so we build some flexibility into the schedule rather than promise a fixed date a bad stretch of weather is likely to break.
A Checklist Before Calling an Installation Done
Whether you're evaluating our work or getting a second opinion from another contractor, these are reasonable things to confirm before a siding installation is considered finished:
- Fasteners and hardware rated for coastal, salt-air exposure — not standard-grade material
- Documented clearance between the bottom of the siding and grade, decks, and roofing
- Flashing visible and properly lapped at every window, door, and wall penetration before siding covers it
- All field-cut edges sealed or primed, none left raw
- A continuous, properly lapped water-resistive barrier underneath the siding
- Installation that follows James Hardie's published fastening and spacing spec, not a generalized approach
- A final walkthrough where the contractor explains what was done, not just an invoice
Why a Crew That Already Works This Stretch of Coast Matters
An installation crew that regularly works exposed, open-water sites like Cherry Point makes different calls than one installing here occasionally between jobs elsewhere in the county — which walls get extra flashing attention, which fastener grade actually holds up against this much salt air, and which corners genuinely can't be cut regardless of schedule pressure. That judgment comes from doing the work repeatedly on this specific kind of site, not from applying a generic installation checklist the same way everywhere. On a property this exposed, that difference is usually what separates siding that lasts one wet season past its warranty from siding that holds up for decades.
If you're planning a new siding installation or a full re-side for a home at Cherry Point, we're glad to come walk the property and give you an honest read on what it needs. Reach out using the form below for a free, no-pressure estimate.