Fairhaven Siding Vinyl siding is the most common siding material sold in the country, and it didn't get that way by accident. It's inexpensive, it goes up fast, and for a lot of climates it does an adequate job. We get asked about it often enough that we think homeowners in Fairhaven and the rest of Whatcom County deserve a straight answer for why we don't install it, rather than a sales brochure.
What vinyl actually gets right
Fairness first. Vinyl siding is genuinely low-cost up front, it doesn't rot, and it never needs painting. For a builder trying to hit a price point on a spec home, it's a rational choice. If your budget is the single deciding factor and you're not planning to stay in the home long-term, we understand the appeal.
Where it struggles in this climate
The problem isn't that vinyl is a bad product in general — it's that it's a poor match for what Fairhaven and Whatcom County actually throw at a house year-round. We're a few blocks from Bellingham Bay in a lot of these neighborhoods, and salt air, driving rain off the water, and a moss season that can run eight or nine months out of the year all put specific demands on exterior materials that vinyl wasn't really engineered around.
- Salt air acceleration. Vinyl doesn't rust, but the fasteners, trim accessories, and mounting hardware behind and around it often do. In coastal exposure like ours, that hardware corrodes faster than it would inland, and once fasteners fail, panels rattle, bow, or blow off in a windstorm.
- Moisture management is passive at best. Vinyl siding is designed as a "rain screen" that's supposed to let water drain and evaporate behind it, but it depends entirely on correct installation — proper laps, weep holes kept clear, and a sound water-resistive barrier underneath. With the volume of driving rain we see off the Sound and the Strait, any shortcut in that installation shows up as trapped moisture, and trapped moisture behind siding is exactly what feeds rot in the sheathing nobody sees until a wall is opened up.
- Moss and biological growth. Our long damp season is hard on any siding, but vinyl's slightly flexible, low-gloss surface and its seams give algae and moss plenty to grip onto, especially on north-facing walls that don't get much sun to dry out between storms. Keeping it clean is a recurring maintenance job here, not a one-time chore.
- Temperature movement. Vinyl expands and contracts with temperature more than fiber cement does. Our swings aren't extreme by national standards, but combined with UV exposure over years, panels can warp, oil-can (that wavy, rippled look), or pull loose from their nailing hem, particularly on south and west elevations.
- Impact and wind resistance. Vinyl is thin and somewhat brittle in cold weather. It cracks under impact — a ladder, a thrown rock, hail, a wind-driven branch — more easily than fiber cement, and a cracked panel usually means replacing the whole piece since color-matching aged vinyl is difficult.
- Color is baked in, not painted on, but it fades. Vinyl doesn't need painting, but its pigment does fade with UV exposure over time, and because the color is integral to the material, you can't simply repaint it to freshen it up without special primers — most homeowners just live with the fade or replace it.
Why we standardized on James Hardie instead
We made a decision a while back to install one siding system, and only one: James Hardie fiber cement. It's not the cheapest option on the market, and we're upfront about that. But for this specific climate — the salt exposure near the water, the driving rain, the long stretch of gray, damp months that grow moss on anything that holds moisture — it's the material that holds up the way homeowners expect siding to hold up.
Fiber cement is non-combustible, which matters more each fire season. It's dimensionally stable, so it doesn't expand and contract the way vinyl does, which means straighter lines and fewer gaps opening up at seams over the years. Hardie's ColorPlus factory finish is baked on and warrantied against fading and chipping, so you're not depending on a field-applied coating or hoping a molded-in vinyl color holds its tone. And Hardie makes HZ5 product specifically engineered for our climate zone, addressing moisture and freeze-thaw behavior rather than treating the Pacific Northwest like an afterthought.
None of this means fiber cement is maintenance-free — it isn't. It still needs to be kept clean of moss and grime like anything else on a house near the water, and it still needs correct flashing and installation to perform. But when it's installed to spec, it's the product we're comfortable standing behind for the next several decades on a Whatcom County home, not just the next several years.
Talk it through with us
If you're weighing siding options for a home in Fairhaven or anywhere else in Whatcom County, we're happy to walk your specific house — its exposure, its sun and shade, its wind and moisture patterns — and give you an honest read on what it needs. Reach out for a free, no-pressure estimate and we'll tell you exactly what we'd do and why.