Lynden Siding Siding Installation Is a Trade, Not Just a Material Choice
Most homeowners comparing siding spend nearly all their time comparing materials — James Hardie against vinyl, engineered wood, or cedar — and skip past the part that actually decides whether the job holds up: how it was installed. That's true everywhere, but it matters more on a property in Custer than it does in a lot of Whatcom County. This stretch of flat, open agricultural land north of Ferndale doesn't get a windbreak from storms coming off the Salish Sea, so wind-driven rain, corrosive marine-influenced air, and a moss season that runs most of the year all put installation shortcuts under pressure faster than a calmer, more sheltered site would. A fastener placed slightly wrong, a clearance skipped at grade, a cut edge left unsealed — none of that shows up on the day the crew leaves. It shows up two or three winters later, as staining, softness, or a warranty claim that gets denied because the install didn't follow spec.
This page is specifically about siding installation for Custer homes — new siding on new construction and full re-siding of an existing house, not spot repair — and what separates a correct job from one that just looks finished on install day. We install James Hardie fiber cement exclusively, so everything below describes that system specifically, since it's the only one we install to spec on homes in this area.
What Custer's Climate Demands From an Installation
Open, Wind-Exposed Land With No Windbreak
The flat, open terrain around Custer cuts both ways — pleasant most of the year, but it means storms rolling in off the water don't lose much force before they reach town. Rain gets pushed sideways into wall assemblies instead of falling straight down, which puts real pressure on panel joints, trim seams, and anywhere the water-management detailing isn't right. A crew used to calmer, more sheltered sites can get away with looser flashing and sealant work in other parts of the county; that same looseness shows up as a leak here.
Salt-Laden Air Reaching Inland
Custer isn't waterfront, but it sits close enough to the Salish Sea that marine air reaches most properties in town on winter storms, not just the ones nearest the shoreline. That accelerates corrosion on fasteners, trim hardware, and flashing faster than it would twenty or thirty miles further inland — a real factor in what grade of hardware a crew should actually be using, not just what's cheapest or easiest to source.
A Moss Season That Doesn't Really End
Mild temperatures and near-constant moisture keep moss and mildew active across most of the calendar here, especially on shaded, north-facing walls. Installation choices affect that more than people expect: correct clearance at the base of the wall, a working drainage plane behind the siding, and panels that aren't crammed tight against trim all give a wall the chance to actually dry out between wet stretches instead of staying damp continuously.
What a Correct James Hardie Installation Actually Involves
Fastening and Spacing to Spec
James Hardie publishes exact fastener type, spacing, and placement requirements that vary by product line and exposure. Following that spec — not an abbreviated version of it — is what keeps panels secure through wind loads and what keeps the manufacturer's warranty intact if a problem ever shows up.
Clearances at Grade, Roofline, and Attachments
Hardie specifies minimum clearance between the bottom of the siding and grade, roofing, decks, and other horizontal surfaces. Those numbers exist to keep the board edge out of standing water and splash-back, a common failure point on properties where the ground level has crept up over the years or a deck went in after the original siding did.
Flashing and Sealant at Every Penetration
Windows, doors, hose bibs, vents, and exterior light fixtures all break the plane of the siding, and each one is a place water can get behind the cladding if it's flashed or sealed wrong. This is the slowest, least visible part of an install, and it's the part that decides whether a wall stays dry behind the siding for decades or starts trapping moisture within a few seasons.
Sealing Field-Cut Edges
Any panel cut on site — around a window, at a corner, at the end of a run — needs that cut edge sealed or primed to 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's an installation failure, not a material one.
Installation Shortcuts That Fail Fastest on an Open, Wind-Exposed Site
| Shortcut | What it looks like on install day | How it shows up later on a Custer home |
|---|---|---|
| Standard fasteners instead of corrosion-resistant hardware | No visible difference | Rust streaking, loosened trim, and staining within a few years |
| Skipped clearance at grade or deck ledger | Siding looks tight and tidy | Wicking, softness, and paint failure at the bottom courses |
| Rushed flashing at windows and penetrations | Looks sealed from the outside | Hidden moisture intrusion, sometimes not visible until interior staining shows up |
| Unsealed field-cut edges | Cuts look clean and painted | Localized swelling or delamination at the cut, worse on wind-facing walls |
| Panels installed tight against trim with no drainage gap | Appears well-fitted | Trapped moisture and persistent moss on shaded elevations |
How We Handle an Installation in Custer, Step by Step
Site and Exposure Walkthrough
Before anything is priced, we look at how each wall of the house is actually exposed — which faces catch the most wind and wind-driven rain given the open terrain around most Custer lots, which sit in enough shade to stay damp longer, and where existing moss buildup or past water staining points to a chronic issue rather than a one-time event.
Tear-Off and Sheathing Inspection
Old siding comes off and the sheathing underneath gets inspected before anything new goes up. Covering damaged sheathing with new siding just buries the problem for a future owner to find; we'd rather catch rot or soft spots at this stage, even if it adds a step to the schedule.
Weather Barrier and Drainage Plane
The water-resistive barrier goes on with correct overlap and taped seams at every joint and penetration before flashing and siding go over it. On a wind-exposed site like most Custer properties, this hidden layer does more of the real work of keeping wind-driven rain out of the wall assembly than people assume — it's also the layer no one ever sees again once the job is finished.
Siding Installation to Manufacturer Spec
Panels go up following Hardie's fastening, spacing, and clearance requirements as the baseline, not as an upgrade option. Field cuts get sealed as they're made, not batched for 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 for a property with this kind of wind and moisture exposure.
New Construction vs. Re-Siding an Existing Custer Home
New construction and a full re-side are related jobs with real differences. New construction means building onto fresh sheathing and a new water-resistive barrier — no surprises hiding behind the wall, though the installation sequence still has to be right the first time. Re-siding an existing home adds a discovery phase: an honest look at what the original construction and any past repairs left behind, since older homes in this area sometimes turn up inadequate clearances, missing flashing, or a barrier that was never installed correctly in the first place. Both require the same attention to spec; re-siding just means finding and correcting that history before new siding goes up over it.
Timeline and Cost Factors for a Custer Installation
Every estimate is specific to the house, but a few factors consistently drive both timeline and price on an installation project out here:
| Factor | Why It Matters |
|---|---|
| Square footage and number of stories | More area and height mean more labor and, on taller walls, more staging and access equipment |
| Trim and roofline complexity | Homes with more windows, dormers, and roofline transitions require more flashing and cutting work |
| Sheathing condition found at tear-off | Rot or water damage discovered once old siding is off adds repair scope before new siding can go up |
| Wind exposure of the specific lot | More open, unsheltered sites typically warrant closer attention to flashing and drainage detail |
| Product line and ColorPlus finish selection | James Hardie offers multiple panel styles, textures, and factory finishes at different price points |
Weather affects scheduling more directly here than in more sheltered parts of the county — open land gives wind nothing to slow it down, and a bad stretch can shut down safe staging and panel handling on days that would still be workable a few miles away in more protected terrain. We build some flexibility into project timelines rather than promise a fixed date a bad week of weather is likely to break.
A Checklist for a Correct Installation
Whether you're evaluating our work or getting a second opinion from another contractor, these are reasonable things to confirm before an installation is considered done:
- Fasteners and hardware rated for the corrosion this area's marine-influenced air causes over time, 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, not left raw
- A continuous, properly lapped water-resistive barrier underneath the siding
- Installation that follows the manufacturer's published fastening and spacing spec, not a generalized approach
- A final walkthrough where the contractor explains what was done, not just hands you an invoice
Why a Crew That Already Installs in Custer Matters
Installation quality on paper and installation quality in practice aren't always the same thing, and the gap tends to show up fastest on an open, wind-exposed site like most Custer properties. A crew that regularly installs siding out here makes different calls than one working the area occasionally between jobs elsewhere in the county — where extra flashing attention actually pays off, which fastener grade holds up against inland-reaching salt air, and which corners genuinely can't be cut regardless of schedule pressure. That kind of judgment comes from doing the work repeatedly in this specific place, not from applying a generic installation checklist the same way everywhere.
If you're planning new siding for a Custer home, or want a straightforward second opinion on whether an existing installation was done right, we're glad to come take a look. Reach out using the form below for a free, no-pressure estimate.