Anacortes Siding Two Very Different Materials, One Tough Climate
If you're re-siding a home in Anacortes, you've probably narrowed your options down to two finalists: vinyl siding and James Hardie fiber cement. Both are popular, both are widely available, and both companies will tell you their product is the right choice. We only install one of them, and we think homeowners deserve a straight explanation of why — not a sales pitch dressed up as "education."
Skagit County's marine climate is a real factor here. Homes near Fidalgo Bay and the Guemes Channel deal with salt-laden air, wind-driven rain that gets pushed sideways into wall assemblies, and long stretches of gray, damp weather that keep siding wet for days at a time. Add in shaded lots with heavy moss and algae growth, and you've got a climate that tests exterior materials harder than a lot of the country ever sees.
What Vinyl Siding Does Well
Vinyl has earned its popularity honestly. It's inexpensive relative to most alternatives, it's light enough that installation crews can move fast, and it never needs to be painted. It resists rot outright because it isn't wood-based, and for budget-driven projects it's often the material that gets a tired-looking house back to presentable the quickest.
Modern vinyl profiles have also improved — better locking systems, thicker gauges in the premium lines, and color options that go beyond the faded pastels of decades past. For a homeowner who needs low upfront cost and is willing to accept the trade-offs below, it's not an irrational choice.
Where Vinyl Runs Into Trouble Here
The trade-offs matter more in a place like Anacortes than they would in a drier, milder inland climate.
- Heat and cold movement: Vinyl is a plastic product, and it expands and contracts with temperature swings. Panels have to be installed with room to move — nail too tight and you get buckling and waviness that shows up as the seasons change.
- Wind-driven rain: Vinyl siding is a lapped, non-sealed system by design; it relies on the water-resistive barrier behind it to do the real work of keeping water out. In exposed, wind-heavy spots around the county, that puts a lot of pressure on the underlying wrap and flashing details rather than the visible siding itself.
- Impact and UV fatigue: Vinyl can crack in a hard impact, especially in colder weather when it's more brittle, and darker colors are prone to fading and chalking from years of UV and salt-air exposure — sun-facing elevations often visibly age faster than shaded ones.
- Not fire-resistant: Vinyl is a petroleum-based plastic. It's not intended to serve as a fire-resistive layer on a home, which is a real consideration for some homeowners even outside of high-fire-risk zones.
- Moss and mildew show up cosmetically: Vinyl doesn't rot from moss and algae, but it doesn't fight it off either — the same shaded, damp walls that grow moss on any siding type will show it on vinyl's textured surface, and washing has to be done carefully so panels don't unlock or crack.
None of this means vinyl siding is a bad product. It means it's a product with a specific set of compromises, and in our professional judgment those compromises line up poorly with the way this climate treats a home over 20-plus years.
Why We Standardized on James Hardie
James Hardie fiber cement is cement, sand, and cellulose fiber — not plastic, and not wood. That composition changes the equation on several of the points above:
| Factor | Vinyl Siding | James Hardie Fiber Cement |
|---|---|---|
| Core material | PVC plastic | Fiber cement |
| Fire behavior | Combustible plastic | Non-combustible |
| Dimensional movement | Expands/contracts with heat | Minimal, engineered for climate |
| Finish | Color molded into plastic | Factory-baked ColorPlus finish |
| Impact resistance | Can crack, more brittle when cold | Dense, rigid board |
Hardie also builds region-specific product — its HZ5 line is engineered for the kind of wet, humid, freeze-prone climate we get in the Pacific Northwest. The ColorPlus factory finish is baked on under controlled conditions rather than applied on site or molded into plastic, and it carries its own finish warranty separate from the substrate warranty on the boards themselves. For a home absorbing salt air off the water and months of driving rain every winter, that combination of moisture-engineered material and factory-cured finish is what we want standing between our clients and the weather.
Our Honest Bottom Line
We don't install vinyl siding, and we're upfront about why: given what this coastal Skagit County climate does to a house over its lifetime, we'd rather stand behind one material we trust completely than offer a cheaper option we'd have reservations about. If cost is the primary driver of your decision, vinyl siding contractors can serve that need — that's a legitimate choice, just not the one we make. If you want a siding system built to hold its finish, resist moisture intrusion, and shrug off the salt air and moss season that come with living near the water, James Hardie is what we put on homes.
Want to talk through what makes sense for your specific house? We're happy to walk your property, look at sun exposure and moisture patterns, and give you a straightforward, no-pressure estimate.