The Honest Answer: It's Not About the Price Tag
Vinyl siding is the most common exterior product sold in America, and there's a reason for that: it's inexpensive, it goes up fast, and for a lot of climates it does a perfectly adequate job. We're not going to stand here and tell you vinyl is a scam or that every vinyl-clad house in Lynden is falling apart. That's not honest, and it's not our style.
What we will tell you is why, after years of doing exterior work in Whatcom County, we made the decision to stop installing it. It comes down to how vinyl actually behaves over 15-20 years in a marine climate that combines salt air off the Strait of Georgia, long stretches of driving rain, and a moss season that can run from October through May. Vinyl isn't built to fight all three at once, and we got tired of being the crew that had to explain, five years after installation, why the siding we didn't put up was buckling, chalking, or hiding rot underneath.

What Vinyl Siding Actually Gets Right
Credit where it's due:
- Low upfront cost — vinyl is typically the cheapest siding option on a per-square-foot basis, materials and labor combined.
- Fast installation — panels snap together quickly, which keeps labor costs down.
- No painting required — the color is baked into the material, not applied as a coating.
- Decent moisture resistance on its own — the panels themselves don't absorb water or rot.
If a homeowner's only priority is the lowest possible sticker price and they're planning to sell within a decade, vinyl isn't an irrational choice. We just don't think it holds up as a long-term investment in this specific climate, and we'd rather tell you that upfront than sell you something we don't believe in.
Where It Falls Apart in a Whatcom County Climate
Salt Air and Long-Term Fading
Lynden sits inland from the coast, but Whatcom County's weather still carries salt-laden moisture off Bellingham Bay and the Strait of Georgia, especially on west-facing exposures. Vinyl's color is a pigment mixed into the plastic itself, and over years of UV exposure combined with that salt-air moisture cycle, it doesn't just fade evenly — it can chalk, streak, and develop a dull, uneven look that no amount of pressure washing fixes. Darker colors fade faster and are more prone to warping from heat absorption, which limits your color choices right from the start.
Driving Rain and the "Rain Screen" Problem
Vinyl siding is installed as an overlapping shell — it's designed to shed the majority of water, but it is explicitly not a sealed, waterproof barrier. Manufacturers assume some wind-driven rain will get behind the panels, which is why proper installation depends entirely on the water-resistive barrier and flashing details underneath. In a region that sees sustained wind-driven rain events, especially on exposed elevations, that assumption gets tested a lot more often than it would in a drier climate. When the details underneath aren't perfect — and they often aren't, because vinyl gets installed fast and cheap — moisture works its way behind the panels and stays there.
Moss, Algae, and a Material That Can't Be Refinished
Our moss season here runs long, and north-facing or shaded walls stay damp for months at a time. Vinyl's slightly textured, matte surface gives algae and moss spores something to grab onto, and because the color is embedded in the plastic rather than a paintable finish, the only real fix once staining sets in is aggressive cleaning — which further breaks down the surface — or replacement. You can't sand it, prime it, and repaint it the way you can with a fiber cement or wood product.
Impact and Cold-Weather Brittleness
Vinyl gets more brittle in cold temperatures. A stray branch, a ladder bump, or debris in a windstorm can crack a panel in winter that would have just dented in summer. Cracked panels are also notoriously hard to color-match years later, since sun exposure fades the rest of the wall unevenly.
The Installation Sensitivity Problem
Here's the part most homeowners never hear from the person selling them vinyl: the product's real-world performance depends almost entirely on installation quality, and vinyl is unusually easy to install wrong in ways that don't show up for years.
- Panels have to be left slightly loose to allow for thermal expansion and contraction — nail it too tight and it will buckle or warp within a season or two of temperature swings.
- Every seam, corner, and penetration relies on correct overlap and flashing, because the panel itself isn't waterproof.
- J-channels around windows and trim are common failure points where water intrudes if they're not detailed correctly.
Because vinyl is marketed as an easy, low-skill install, it's frequently installed by crews without the training to get those details right. We're not interested in installing a product where the margin for error is that unforgiving and the failures are invisible until there's already water damage behind the wall.
What Happens Behind the Wall
This is the trade-off that matters most. Vinyl siding failures are rarely about the panels themselves — they're about what's happening underneath, out of sight. Once moisture gets behind vinyl and can't dry out efficiently, it's sitting against your sheathing and framing for months at a time during our wet season. By the time a homeowner notices soft trim, a musty smell, or paint bubbling on an interior wall, the damage has usually been developing for years. Vinyl doesn't fail loudly. It fails quietly, behind itself.
Vinyl vs. James Hardie Fiber Cement: A Straight Comparison
| Factor | Vinyl Siding | James Hardie Fiber Cement |
|---|---|---|
| Upfront cost | Lowest of common siding options | Higher upfront investment |
| Material composition | PVC plastic | Cement, sand, and cellulose fiber |
| Combustibility | Melts and can contribute fuel in a fire | Non-combustible |
| Color/finish | Color molded into plastic; fades and chalks over time | Factory-baked ColorPlus finish, repaintable if desired |
| Moisture behavior | Sheds most water; not a true barrier, relies on install details | Engineered HZ formulations for regional moisture exposure |
| Impact/cold resistance | Becomes brittle and crack-prone in cold | Dense, resists impact and doesn't embrittle in cold |
| Warranty structure | Varies widely by manufacturer and grade | Strong transferable manufacturer warranty |
| Typical lifespan before major issues | Often shows fading, warping, or moisture issues within 15-20 years | Built for 30+ years when installed to spec |
Why We Standardized on James Hardie
We made a decision a while back to install exactly one siding product: James Hardie fiber cement. Not because it's the only decent product on the market in the abstract, but because after years of tear-offs and repairs on other materials in this specific climate, it's the one we trust to still look and perform the way it should a couple decades from now.
A few reasons that decision holds up:
- Non-combustible. Fiber cement doesn't burn or melt, which matters more every year as wildfire smoke and dry summer stretches become part of our regional reality.
- Climate-engineered product lines. Hardie's HZ formulations are built for specific moisture and temperature zone exposure, rather than a one-size-fits-all national product.
- ColorPlus factory finish. Baked-on, UV-cured color that resists the fading and chalking we see on vinyl, and it can still be repainted down the road if a homeowner wants a change.
- Rigid, dense material. It doesn't warp in heat, doesn't embrittle in cold, and stands up to impact far better than a thin plastic panel.
- A real, transferable warranty backed by a manufacturer that's been making this specific product for decades.
It costs more upfront than vinyl. We tell every homeowner that plainly, before they sign anything. But we'd rather install one product we fully stand behind than offer a cheaper option we already know has a good chance of becoming a problem for the person who bought it.
What to Ask Before You Choose a Siding Product
- How does this material perform specifically in a wet, salt-influenced climate — not just "in general"?
- What does the manufacturer's warranty actually cover, and does it transfer if I sell the house?
- Is the finish factory-applied and UV-stable, or will it need repainting within a decade?
- How forgiving is this product of installation mistakes, and who's actually doing the install?
- What happens to this material if water gets behind it — does it trap moisture or let the wall dry out?
Our Recommendation
If you're planning to sell in the next few years and budget is the only variable that matters, vinyl isn't an unreasonable choice, and there are contractors in the area who install it well. That's just not the work we do. If you're planning to stay in your Lynden home, or you want an exterior that still looks sharp and performs well after two decades of Whatcom County winters, we think James Hardie fiber cement is the better bet, and it's the only siding product we put our name behind.
If you'd like a straight, no-pressure look at what a Hardie installation would actually cost for your home, we're happy to come take a look and give you a real estimate — no upsell, no scare tactics, just an honest read on your options.
Lynden