Blaine Siding Cedar Has a Real Appeal
We get why homeowners ask about cedar siding. It's a beautiful, natural material with a warm look that vinyl and fiber cement can only imitate. It's been used on homes throughout the Pacific Northwest for generations, and a freshly stained cedar exterior is genuinely hard to beat on the day it goes up. That's not in dispute.
The problem isn't day one. It's year five, year ten, and year twenty. As a siding contractor working in Blaine and across Whatcom County, we stopped installing cedar because we got tired of watching homeowners inherit a maintenance schedule they didn't sign up for — and because our region's climate is about as hard on exposed wood as it gets in the continental U.S.
The Maintenance Reality Nobody Mentions at the Lumber Yard
Cedar is wood. That means it moves — it absorbs and releases moisture with every wet spell and dry stretch, and over years that cycle causes cupping, checking (surface cracking), and split boards, especially on south- and west-facing walls that see the most sun-to-rain swings. To slow that down, cedar siding needs to be refinished on a real schedule:
- Stain or sealant reapplied roughly every 2 to 4 years, sooner on sun-exposed or wind-driven-rain walls
- Caulking and trim joints inspected annually and re-sealed as they open up
- Any split, cupped, or delaminating boards replaced before moisture gets behind them
- Regular washing to keep organic growth from taking hold in the grain
None of that is a one-time cost. It's a recurring line item for as long as you own the house, and skipping a cycle doesn't just mean the finish looks tired — it means moisture starts working its way into the wood itself.
What Blaine's Climate Does to Cedar Specifically
Every region is hard on wood siding in its own way, but Whatcom County stacks a few problems on top of each other. Blaine sits close enough to the Strait of Georgia and Semiahmoo Bay that salt-laden air is a real factor — salt accelerates the breakdown of exterior finishes and speeds up weathering on exposed wood grain, which means stain and sealant here don't last as long as the can label suggests.
Then there's the rain. Driving rain off the water finds every gap in a cedar installation — every seam, every nail head, every spot where caulk has started to pull away — and once moisture gets behind a board, wood doesn't dry out quickly in our climate. We get a long wet season, and that same dampness that keeps Whatcom County green also keeps cedar siding damp for extended stretches.
That leads to the third issue: moss and algae. Shaded walls, north-facing elevations, and anything under tree cover in this area will grow moss and mildew on wood siding if it isn't kept clean and properly sealed. It's not a defect in the cedar — it's just what happens when organic material sits in a damp, mild climate for months at a stretch. Once moss takes hold in the grain, it holds moisture against the wood and the deterioration speeds up from there.
Why We Standardized on James Hardie Instead
We're not in the business of selling homeowners a product that looks great in a photo and turns into a maintenance project by year six. After years of servicing wood siding call-backs, we made a professional decision: we install James Hardie fiber cement siding, exclusively, on every job.
| Concern | Cedar | James Hardie Fiber Cement |
|---|---|---|
| Refinishing | Every 2-4 years | ColorPlus factory finish holds far longer, no full-house repaint on the usual cycle |
| Moisture movement | Cups, checks, splits | Engineered to resist swelling and warping |
| Combustibility | Combustible | Non-combustible material |
| Climate engineering | Generic to species | HZ product lines engineered for regional moisture exposure |
| Warranty | Typically none beyond installer workmanship | Strong manufacturer warranty, transferable to future owners |
Hardie's fiber cement doesn't absorb water the way wood does, so it isn't fighting the same cupping and splitting battle cedar faces on our exposed, rain-driven walls. The factory-applied ColorPlus finish is baked on under controlled conditions, not brushed on in the field, and it's built to outlast what a field-applied stain can do — which matters a lot when salt air is working against every finish on the house. And because it's non-combustible, it removes a variable that wood siding simply can't.
We're not telling you cedar is a bad material. We're telling you why we, as the people who'd have to stand behind the installation and the homeowner's expectations for the next 20 years, chose not to put it on houses in this climate anymore.
Let's Talk About Your Home
If you're weighing cedar, fiber cement, or just trying to figure out what's actually going on with your current siding, we're happy to take a look. Reach out for a free, no-pressure estimate and we'll walk you through what we'd recommend for your home's exposure and budget — straight answers, no upsell.