Ferndale An Honest Answer to a Question We Get Often
Homeowners ask us to bid vinyl siding jobs fairly regularly, and we turn most of them down — or we bid the job in James Hardie fiber cement instead and explain why. That's not a sales tactic. It's a standard we've held to because of what we've seen happen to vinyl siding on homes around Ferndale, Blaine, Lynden, and the rest of Whatcom County after a decade or two of salt air, driving rain, and long gray moss seasons. This page explains our reasoning in plain terms, including where vinyl actually performs fine, so you can make your own informed decision.
What Vinyl Siding Actually Gets Right
We're not going to pretend vinyl is a bad product across the board. It has real advantages, and it's the right call for plenty of homeowners and plenty of climates:
- Lower upfront material and labor cost than almost any other siding option
- No painting required — color is through the panel, not a surface coating
- Lightweight, which speeds up installation on straightforward wall sections
- Widely available in a large range of colors and profiles
- Not prone to rot or insect damage the way wood products are
For a dry inland climate, a rental property, or a homeowner who plans to sell within a few years, vinyl can be a perfectly reasonable choice. Our objection isn't to the product in the abstract — it's to installing it on homes in this specific corner of the Pacific Northwest and standing behind it as a 30-plus year exterior.
Why We Don't Put It on Homes Here
It Moves With the Weather — A Lot
Vinyl is a thermoplastic. It expands and contracts significantly with temperature swings, which is why every manufacturer requires it to be hung loosely in slotted nail hems rather than fastened tight. Done correctly by an experienced crew, that's manageable. Done even slightly wrong — over-driven fasteners, panels nailed too tight, wrong gap left at trim — and you get buckling, waviness, or panels that pop off their track in a wind event. We see this on homes that were installed by crews who didn't respect the tolerances, and by the time it shows up, it's a labor-intensive fix, not a quick patch.
It's a Rain Screen, Not a Rain Barrier — and It Knows It
Vinyl siding is designed and marketed as a drainage plane, not a waterproof skin. The manufacturers are upfront about this: the housewrap behind it is doing the real work of keeping bulk water out, and the panels themselves are expected to let some wind-driven moisture through at the laps and seams. In a moderate climate that's an acceptable trade-off. In Whatcom County, with driving rain coming off the Strait and Georgia Strait on a regular basis through fall and winter, that assumption gets tested a lot more often than it does in drier parts of the country.
Impact and Cold-Weather Brittleness
Vinyl gets noticeably more brittle as temperatures drop. A stray branch, a ladder bump, or a thrown rock that would leave a dent in fiber cement will crack a vinyl panel outright on a cold January morning. Cracked panels have to be replaced, not patched, and matching the color of sun-faded panels a decade later is rarely possible since the color is baked through a product that's already been UV-fading unevenly.
Fading and Chalking
Darker vinyl colors fade unevenly with UV exposure over time, and the surface can start to chalk — a powdery residue that comes off on your hand when you touch it. There's no re-coating a vinyl panel to freshen it; once it's faded, the only fix is replacement.
It Can't Be Refinished
If a homeowner wants to change their exterior color down the road, or if one section is damaged and discontinued, vinyl siding offers no path forward other than tearing out and replacing whole sections or the whole house. That's a real limitation compared to a paintable surface.
Salt Air, Driving Rain, and Moss: The Local Factor
Ferndale sits close enough to Bellingham Bay and the Salish Sea that homes here deal with a genuine marine air component, on top of the driving winter rain that moves through Whatcom County for months at a stretch. A few local specifics that matter for siding decisions:
- Salt-laden air accelerates corrosion on fasteners, trim screws, and any exposed metal flashing — a factor that has nothing to do with the siding panel itself but everything to do with how long the whole assembly holds up
- Long stretches of damp, shaded conditions during our extended moss and algae season create ideal growing conditions on north-facing and tree-shaded walls
- Vinyl's textured, slightly porous surface gives moss and algae something to grip onto, and because it can't be pressure-washed as aggressively as a factory-finished fiber cement surface without risking panel damage, buildup tends to linger
- Wind-driven rain events off the water put real pressure on lap seams and J-channel over a 20-30 year service life
None of this means vinyl siding "fails" here in a dramatic sense. It means it ages faster and less gracefully in this specific climate than it would in a drier, calmer one — and that's exactly the trade-off we don't want to sell a homeowner without saying so upfront.
Vinyl vs. Fiber Cement: A Straight Comparison
| Factor | Vinyl Siding | James Hardie Fiber Cement |
|---|---|---|
| Combustibility | Combustible; can melt or deform near heat sources | Non-combustible |
| Moisture behavior | Drainage plane; relies heavily on housewrap | Engineered HZ formulations for wet climates; still requires proper WRB and flashing |
| Cold-weather durability | Becomes brittle, prone to cracking on impact | Stable across temperature swings, resists impact well |
| Finish/color | Color through material; fades and chalks over time, cannot be recoated easily | Factory-baked ColorPlus finish; can also be field-painted if desired |
| Moss/algae resistance | Textured surface holds onto growth | Denser factory finish sheds growth more readily |
| Typical warranty | Often prorated after early years | Long-term, non-prorated manufacturer warranty on many product lines |
| Upfront cost | Lowest of common siding options | Mid-range; higher than vinyl, less than most wood siding installed correctly |
What We See When Vinyl Comes Off an Older Home
When we remove aging vinyl siding during a re-side, the panels themselves are often the least of the story — it's what's happening behind them that tells us the most. Housewrap that's been doing double duty as the primary water barrier for two decades sometimes shows staining or degradation at seams and penetrations. Fastener heads show corrosion consistent with years of salt air exposure. None of this is unique to vinyl — any siding relies on what's behind it — but it underscores why we think about the whole wall assembly, not just the surface material, when we recommend a replacement system.
Why We Standardized on James Hardie Instead
After years of re-siding homes across Whatcom County, we made a decision to install James Hardie fiber cement exclusively, rather than offering a menu of siding materials. The reasons come down to the same climate factors above, viewed from the other direction:
- Non-combustible material, which matters for insurance considerations and simple peace of mind
- ColorPlus factory finish is baked on and warranted separately from the substrate, holding color and resisting fade far longer than field-applied or through-body color
- Hardie's HZ5 product line is specifically engineered for wetter, harsher climates like ours, rather than a one-size-fits-all national formulation
- Rigid, dense panels resist impact and don't go brittle in cold, wet winters the way thinner materials can
- A strong, transferable manufacturer warranty that holds up when the product is installed to spec
- A cleaner, more resaleable look that holds its value over the life of the siding
We install one product because it lets us master the installation details that actually determine how siding performs over 30 years — flashing details, fastening patterns, clearances, and caulking practices specific to Hardie's requirements — rather than spreading our crews across four or five different systems, each with its own rules.
Questions Worth Asking Before You Choose Vinyl
If you're still considering vinyl for a Ferndale-area home, or getting bids from contractors who install it, these are worth asking:
- What gauge (thickness) of vinyl is being quoted, and how does it compare to premium versus builder-grade product?
- Is the installer following the manufacturer's exact nailing and expansion-gap specifications, or their own shortcuts?
- What does the warranty actually cover after year 10, and is it prorated?
- How is the wall's water resistive barrier and flashing detailed behind the panels — since that's doing more of the water-management work than the vinyl itself?
- What's the plan if a section is damaged in 12 years and that color is discontinued?
If you'd like a second opinion on a siding bid, or you're weighing vinyl against fiber cement for a home in Ferndale or anywhere else in Whatcom County, we're glad to walk the exterior with you and give you a straight, no-pressure estimate — including an honest answer if we think a different approach makes more sense for your specific house.