Bellingham Cedar Looks Great in the Showroom. Bellingham Weather Has Other Plans.
There's a reason cedar siding has been a Pacific Northwest staple for generations. It's a real wood product with genuine character — warm color, visible grain, and a texture that vinyl and composite products spend a lot of marketing budget trying to imitate. If you've ever stood next to a freshly installed cedar exterior, you understand the appeal immediately. We're not going to pretend otherwise.
But there's a difference between what a product looks like on installation day and what it looks like five, ten, and twenty years into a Whatcom County exterior. That gap is why we stopped installing cedar siding and standardized on James Hardie fiber cement instead. This page explains the reasoning, honestly.
What Cedar Does Well
To be fair to the product: cedar is naturally rot-resistant compared to most softwoods, thanks to oils in the wood that resist decay and insects better than pine or fir. It's lightweight, workable, and it takes stain beautifully. Old-growth cedar in particular has a track record of lasting decades when it's maintained aggressively and detailed correctly. None of that is in dispute.
The problem isn't the tree. It's what happens once that wood is milled into thin siding boards and hung on a wall that faces Bellingham Bay.
The Maintenance Burden Nobody Mentions at the Showroom
Cedar siding is a wood product, and wood moves with moisture. Whatcom County gives it plenty to work with — salt-laden air off the Sound, driving rain that comes in sideways during fall and winter storms, and a moss and algae season that runs long in our mild, damp climate. Put those three factors together and you get a siding material that needs real, recurring attention to hold up:
- Refinishing on a clock, not a whim. Cedar needs to be re-stained or re-sealed roughly every 2-4 years depending on sun and rain exposure. Skip a cycle in our climate and the wood starts absorbing moisture it shouldn't.
- Moss and algae are a maintenance line item. Shaded, north-facing walls and anything near mature trees or the water will grow moss faster than most homeowners expect. That's not just cosmetic — trapped moisture under moss and algae growth is what starts rot.
- Caulking and joints need annual eyes on them. Wood expands and contracts with the seasons. Caulk joints, butt seams, and trim intersections open up over time, and once water finds a gap in a wood siding system, it doesn't take long to cause damage that's hidden behind the board until it isn't.
- Salt air accelerates everything. Homes closer to the water see faster finish breakdown and more aggressive moisture cycling than homes further inland, which means shorter intervals between maintenance rounds for waterfront and near-waterfront properties.
None of this makes cedar a bad product. It makes it a high-commitment product — one that rewards homeowners who are willing to stay on top of refinishing and inspection every couple of years, and punishes the ones who fall behind, which in our experience is most homeowners after the first few years of new-home enthusiasm wear off.
What Happens When Maintenance Slips
The failure mode for cedar siding isn't dramatic — it's slow and often invisible until it's expensive. A finish that goes too long without renewal lets moisture into the wood fibers. Once that starts, especially behind moss growth or at open joints, rot can develop in areas you can't see from the ground. By the time it shows up as soft wood, discoloration, or a section that needs to be cut out and replaced, the damage has usually been building for a while.
We've been doing exterior work in this county long enough to know that "I'll re-stain it next summer" is one of the most common sentences in siding maintenance, and one of the least often followed through on. That's not a knock on homeowners — it's just how home maintenance priorities actually work when there's a roof, a furnace, and a dozen other things competing for attention and budget.
Why We Install James Hardie Instead
James Hardie fiber cement siding was engineered to solve the exact problems cedar struggles with in a marine climate. It's non-combustible, it doesn't rot, and it isn't a food source for the moss and algae that thrive in our extended wet season the way untreated or under-maintained wood siding is. The factory-applied ColorPlus finish is baked on under controlled conditions and backed by a real finish warranty — no re-staining cycle, no annual refinishing budget.
Hardie also builds specific product lines engineered for climates like ours (their HZ5 designation covers regions with our freeze-thaw and moisture exposure), which means the material is matched to what Whatcom County actually throws at a house rather than a general-purpose product. Combined with correct installation — proper flashing, clearances, and fastening to spec — it's a system built to go decades between anything more than a rinse-down and a visual check.
That's the trade we made: less of the natural-wood texture that makes cedar special, in exchange for an exterior that doesn't put a maintenance deadline on your calendar every few years and doesn't quietly rot behind a section of moss you can't see from the driveway.
The Honest Bottom Line
If you love the specific look of real wood grain and you're committed to refinishing on schedule, cedar can be a legitimate choice for the right homeowner. We just don't think it's the right standard for us to install and stand behind on homes exposed to Bellingham's rain, salt air, and moss season year after year. James Hardie gives us a product we're comfortable warranting without asking a homeowner to take on a recurring maintenance job most people don't have time for.
If you're weighing cedar against fiber cement for your own home, we're happy to walk through both honestly — what each one actually costs to own over time, not just to install. Reach out for a free, no-pressure estimate and we'll give you a straight answer.