Lynden Siding Two Very Different Materials, One Big Decision
If you're re-siding a home in Lynden, you've probably narrowed it down to two finalists: vinyl siding and James Hardie fiber cement. Both are popular, both are sold by contractors throughout Whatcom County, and both will make your house look better than it does today. But they are not interchangeable products, and the differences matter more here than in a lot of other places, because Lynden's climate is genuinely hard on exterior surfaces — salt-tinged marine air drifting in from the Sound, long stretches of driving rain, and a moss season that can run half the year on shaded, north-facing walls.
We install James Hardie fiber cement exclusively. We don't carry vinyl. That's not a knock on every vinyl product ever made — it's a standard we hold because of what we've seen happen to siding, of all kinds, after a decade or two in this climate. Here's the honest breakdown of why.
What Vinyl Does Well
Vinyl siding earned its popularity honestly. It's lightweight, relatively inexpensive to buy and install, and it doesn't rot, rust, or get eaten by insects. It comes pre-colored, so there's no painting at install time. For a homeowner on a tight budget who needs a straightforward exterior refresh, vinyl is a legitimate, functional product, and plenty of it is out there performing adequately.
Where Vinyl Struggles in This Climate
The trade-offs show up over time, and they're the reasons we don't put vinyl on homes we work on:
- Expansion and contraction: Vinyl moves with temperature swings. It's installed with slotted nails so it can shift, which means panels can rattle, bow, or gap over the years — and once a section is warped, matching the faded original color for a repair is nearly impossible.
- Impact damage: Vinyl cracks and shatters in cold weather far more easily than fiber cement. A stray branch, a ladder bump, or a hard hail event can leave a visible crack that has to be replaced, not patched.
- UV fade: Color is baked into the material itself, but Pacific Northwest UV exposure and the region's damp-then-bright cycles still cause noticeable fading and chalking over 10-15 years, especially on darker colors and south-facing elevations.
- Moisture behind the panel: Vinyl is a "rain screen" product by design — water is expected to get behind it. That's fine when the water management (housewrap, flashing, drainage gaps) is installed correctly. When it isn't, and we see this a lot on older Whatcom County homes, moisture sits behind the panel and feeds exactly the kind of moss, mildew, and sheathing rot that a long wet season and salt air accelerate.
- Fire performance: Vinyl is a petroleum-based plastic. It softens and can ignite at much lower temperatures than fiber cement, which is a factor worth weighing given the wildfire smoke and ember exposure that's become a more regular late-summer reality across Washington.
Why We Standardized on James Hardie
James Hardie fiber cement is made from cement, sand, and cellulose fiber — it doesn't burn, doesn't feed moss and mildew the way organic siding materials can, and it holds its shape in both the wet Lynden winters and the occasional summer heat spike. Hardie's HZ5 product line is engineered specifically for climates like ours, with formulations tuned for moisture and freeze-thaw resistance rather than a one-size-fits-all national spec.
The factory-applied ColorPlus finish is baked on under controlled conditions, which gives it noticeably better fade and chip resistance than field-applied paint, and it comes with its own finish warranty separate from the substrate warranty. Because Hardie board is dimensionally stable, it doesn't expand and contract the way vinyl does, so seams stay tight and paint lines stay straight for a much longer stretch of the product's life.
None of this means Hardie is maintenance-free. It still needs to be installed correctly — proper clearances, correct fastening, sealed joints, and flashing details matter enormously, and a sloppy install can undercut even the best material. That's exactly why installation quality, not just product choice, is where most long-term siding failures actually originate.
Side-by-Side Summary
| Factor | Vinyl | James Hardie Fiber Cement |
|---|---|---|
| Upfront cost | Lower | Higher |
| Impact resistance | Prone to cracking | Resists impact well |
| Moisture/moss resistance | Depends heavily on install | Non-organic, moisture-engineered |
| Fire resistance | Combustible | Non-combustible |
| Color longevity | Fades over 10-15 years | Factory finish, longer fade resistance |
| Dimensional stability | Expands/contracts with temperature | Stable |
What This Means for Your Home
If budget is the deciding factor and you understand the trade-offs, vinyl isn't an unreasonable choice for some homeowners — we just won't be the ones installing it. We'd rather put our name behind a product we've seen hold up in Whatcom County's salt air, rain, and moss conditions for decades, installed to a standard we control from start to finish.
If you're weighing your options for a home in Lynden or anywhere else in the county, we're happy to walk your property, talk through what your specific exposure and elevations are dealing with, and give you a straightforward, no-pressure estimate for a James Hardie install.