Ferndale Siding Cedar Has Real Appeal — and Real Demands
Cedar siding shows up on a lot of homes around Ferndale and the greater Whatcom County area, and it's easy to see why. It has a warm, natural look that fits the Pacific Northwest aesthetic, it's a renewable material, and when it's brand new, few things look better on a house. We're not going to pretend otherwise. But after years of installing and repairing siding in this exact climate — salt air drifting in off Bellingham Bay and the Strait of Georgia, long stretches of driving rain, and a moss season that can run eight or nine months a year — we made a business decision to stop installing cedar. This page explains why, plainly and without exaggeration.
What Cedar Does Well
To be fair to the material: cedar has natural oils that give it some inherent resistance to decay and insects compared to other untreated woods, it's lightweight and workable, and it takes stain or paint in a way that many homeowners like. In a dry, well-ventilated climate with a disciplined maintenance schedule, cedar can perform for decades. That's the key phrase — a disciplined maintenance schedule. That's where the real-world trade-offs start.
The Maintenance Burden Is Constant, Not Occasional
Cedar is wood, and wood moves with moisture. In Whatcom County, siding is rarely given the chance to fully dry out between weather events — rain moves in off the water, humidity stays elevated, and shaded north- and west-facing walls near tree lines can stay damp for days after a storm passes. That combination means:
- Semi-transparent stains typically need reapplication every 2-4 years to keep water resistance intact.
- Solid stains and paints last longer but still require recoating on a cycle, plus scraping and prep when they fail.
- Caulk joints, end grain, and butt joints need regular inspection — these are where moisture gets in first.
Skip a cycle or two, and cedar doesn't just look tired — it starts absorbing water it can't shed fast enough, and that's when the real problems begin.
Moisture Behavior: Where Cedar Struggles Locally
Wood siding cups, checks, and swells as it takes on and releases moisture. In a marine climate like ours, that cycle happens more often and more severely than in drier regions. A few specific patterns we see on cedar-sided homes in this area:
- Salt-laden air accelerates the breakdown of finishes near the water, meaning coastal-facing walls weather faster than the same product would inland.
- Moss and algae growth on shaded or north-facing walls holds moisture against the wood surface for extended periods, which is exactly the condition that leads to soft spots and rot at board edges.
- Driving rain during winter storms pushes water sideways into laps and joints, so even correctly installed cedar can take on moisture at seams over time.
None of this means cedar is a bad product — it means cedar demands a level of ongoing attention that most homeowners underestimate when they choose it, and that most contractors underestimate when they price the installation.
Installation Sensitivity
Cedar siding is far less forgiving of installation shortcuts than manufactured products. Board selection matters — grain orientation, moisture content at install, and back-priming all affect how a board will perform over the following years. Fastener choice matters too; the wrong nail can streak or corrode well before the board itself fails. Because cedar is a natural product, no two boards behave identically, which makes consistent, code-correct installation harder to guarantee across an entire house. We'd rather install a product where correct installation is repeatable and predictable, board after board.
Fire Risk Is Also Part of the Conversation
Wood siding is combustible. That's a straightforward fact, not a scare tactic, and it's one more factor we weigh when a homeowner asks us to compare products.
Why We Install James Hardie Instead
We standardized on James Hardie fiber cement siding because it addresses the specific issues cedar struggles with in this climate:
| Concern | Cedar | James Hardie Fiber Cement |
|---|---|---|
| Combustibility | Combustible | Non-combustible material |
| Moisture absorption | Absorbs and releases moisture, prone to cupping/checking | Engineered to resist moisture-related swelling and warping |
| Finish maintenance | Restain/repaint every few years | Factory-applied ColorPlus finish backed by its own warranty |
| Regional engineering | Generic product | HZ product lines engineered for specific climate zones |
| Warranty | Typically installer-dependent, no manufacturer material warranty of similar scope | Strong transferable manufacturer warranty when installed to spec |
James Hardie's fiber cement doesn't feed on moisture the way wood does, it isn't a fuel source, and the factory-baked ColorPlus finish means you're not standing on a ladder with a paintbrush every few years just to keep it from failing at the seams. For a house that has to stand up to salt air, sideways rain, and months of damp, mossy weather, that combination of durability and low maintenance is what we want to put our name behind.
Let's Talk About Your Home
If you're weighing cedar against other options for a home in Ferndale or elsewhere in Whatcom County, we're happy to walk through what we've seen work — and not work — in this specific climate. Reach out for a free, no-pressure estimate, and we'll give you a straight answer on what your house actually needs.