Lynden Exterior Cedar siding has a real pull. It's a genuinely beautiful, natural material, and plenty of homeowners in Lynden and across Whatcom County grew up around cedar-clad barns, cabins, and farmhouses that have aged into something warm and rustic. When people ask us about cedar, we don't tell them it's a bad product — it isn't. We tell them what it actually takes to keep it looking good here, in this climate, on a modern home you don't want to be re-coating every few summers. That's the conversation this page is for.
What Cedar Gets Right
Cedar is a legitimate building material with real advantages, and it's worth naming them before we get into the trade-offs:
- It's a renewable, natural wood product with genuine grain and texture that manufactured products try to replicate
- Western red cedar has natural oils that give it some inherent resistance to decay and insects compared to other softwoods
- It's workable and forgiving for custom trim details, accents, and mixed-material designs
- Properly maintained cedar can look excellent for decades — the word "properly" is doing a lot of work in that sentence
If cedar were a low-maintenance product, we'd probably install it. It isn't, and that's the honest reason we don't.
The Maintenance Cycle Nobody Puts in the Brochure
Cedar siding is wood. Wood moves, absorbs moisture, and breaks down under UV exposure — none of that is a defect, it's just what wood does. To keep cedar performing as a weather barrier and not just a photo backdrop, it needs a real maintenance schedule, not an occasional touch-up:
Staining or Sealing
Most cedar siding needs to be re-stained or re-sealed every 3 to 5 years, sometimes sooner on south- and west-facing walls that take the most sun and weather. Skip a cycle and the wood starts graying, checking, and losing the finish that's actually protecting it — not just the color you paid for.
Caulking and Joint Maintenance
Board joints, butt seams, and trim intersections need periodic recaulking as the wood expands and contracts with our wet winters and dry summers. Failed caulk joints are one of the most common ways water gets behind cedar siding, and once it's behind the boards, you often don't see the damage until it's significant.
Cleaning
Cedar needs regular gentle washing to keep mildew, algae, and moss spores from taking hold — pressure washing done wrong (too close, too aggressive) can actually strip the finish and drive water into the wood, which defeats the purpose.
Moisture Is the Real Adversary Here
This is the section that matters most for a Lynden home. Whatcom County sits in a wet marine climate, and even here in the Nooksack Valley, well inland from the coastline, we get the same driving rain systems and damp, low-light winters that plague the rest of the Puget Sound region. That combination is hard on any exterior wood product.
Wood siding relies almost entirely on its finish to shed water. Once that finish fails — from UV breakdown, from a missed maintenance cycle, from a scratch or a nail pop — the wood underneath starts absorbing moisture directly. Cedar that stays damp for extended periods is where you start seeing cupping, splitting, and eventually rot at the most vulnerable points: bottom courses near grade, under windows, and anywhere water can pool or wick.
Add in the marine air that moves through this part of Whatcom County off Bellingham Bay and the Salish Sea, and you get a slow, steady corrosive effect on fasteners and finishes that homeowners further inland don't have to think about as much. It's not dramatic — it's cumulative, and it shows up as a maintenance bill five, ten, fifteen years down the road.
Moss Season Is Not a Minor Inconvenience
Anyone who's lived here through a Whatcom County winter knows moss isn't a once-in-a-while nuisance — it's a season. The combination of shade, moisture, and mild temperatures from fall through spring makes north-facing walls, areas under eaves, and anywhere airflow is limited prime real estate for moss and algae growth on wood siding.
Moss on cedar isn't just cosmetic. It holds moisture directly against the wood surface, which accelerates the exact decay process the finish is supposed to prevent. Removing it without damaging the wood or the finish takes a gentler, more careful approach than most homeowners realize, and it needs to happen more than once a year in the shadier spots on a typical Lynden lot.
What This Actually Costs Over Time
The sticker price on cedar siding installation can look competitive. The lifetime cost is where the picture changes, because the maintenance isn't optional — it's the only thing standing between the wood and the weather.
| Factor | Cedar Siding | James Hardie Fiber Cement |
|---|---|---|
| Refinishing cycle | Every 3-5 years (stain/seal) | ColorPlus finish factory-baked, typically 15+ years before repaint consideration |
| Caulking upkeep | Ongoing, joint-by-joint inspection needed | Minimal; engineered for dimensional stability |
| Moisture vulnerability | High if finish fails or maintenance is skipped | Low; non-organic material doesn't rot |
| Moss/algae impact | Accelerates decay if left untreated | Cosmetic only; doesn't compromise the material |
| Fire classification | Combustible | Non-combustible |
| Typical warranty | Varies by installer; material has no manufacturer performance warranty | Long-term transferable manufacturer warranty on the product itself |
None of this means cedar is a scam or a poor product — it means the true cost of cedar siding is spread out over decades of upkeep rather than concentrated in the install. That's a legitimate choice for a homeowner who wants the wood look and is committed to the schedule. It's just not the choice we're willing to build our business's reputation on installing.
Fire and Insurance Considerations
Cedar, like any wood siding, is a combustible material. In a region where wildfire smoke and dry-season fire risk have become more of a year-round conversation even west of the Cascades, that's a factor more homeowners are asking about, and some insurance carriers are starting to reflect it in premiums or underwriting questions. Fiber cement's non-combustible rating is a straightforward, verifiable difference — not a scare tactic, just a fact worth knowing before you commit to a material for the next several decades of your home's life.
What Committing to Cedar Actually Looks Like
If, after all this, cedar is still the look you want, go in with eyes open. Here's the realistic maintenance commitment:
- Inspect all sides of the home at least twice a year, especially before and after the wet season
- Budget for re-staining or re-sealing on a 3-5 year cycle, sooner on sun-exposed walls
- Recaulk joints and trim intersections as they show gaps or cracking
- Gently clean moss and algae from shaded and north-facing walls annually
- Address any cupping, splitting, or soft spots immediately — don't wait for the next scheduled maintenance
- Keep gutters and downspouts clear so runoff isn't sheeting down wall sections
- Maintain clearance between siding and grade, mulch beds, and irrigation spray
That's not a reason to panic about cedar — it's just what "natural wood siding" actually means as an ongoing responsibility, not a one-time purchase.
Why We Install James Hardie Instead
We made a standard decision a long time ago: we only install James Hardie fiber cement siding. Not because wood siding is fraudulent or because we think less of homeowners who choose it — but because we're the ones who have to stand behind what we put on your house, and we've seen how the maintenance math on wood plays out in a climate like ours over the years, not just the first summer after install.
Hardie's HZ5 product line is engineered specifically for climates like the Pacific Northwest's — freeze-thaw cycles, sustained moisture exposure, and the kind of driving rain and marine air that define a Whatcom County winter. The ColorPlus factory finish is baked on under controlled conditions, not applied on a ladder in variable weather, and it's backed by a real, transferable warranty on both the substrate and the finish. It's non-combustible, it doesn't feed moss and algae the way organic material can, and it doesn't ask a homeowner to keep a maintenance calendar just to keep water out of the walls.
That's the trade-off in plain terms: cedar gives you a natural material with an ongoing commitment attached. Hardie gives you the durability and weather performance this region demands with a maintenance schedule that's dramatically lighter over the life of the siding.
Let's Talk About Your Home Specifically
Every house is different — sun exposure, roof overhangs, tree cover, and grade all change how hard a siding material has to work on your particular lot. If you're weighing cedar against fiber cement for a home in Lynden or anywhere else in Whatcom County, we're happy to walk your property, point out the spots that would be hardest on wood siding, and give you a straight answer about what we'd recommend and why. Reach out for a free, no-pressure estimate using the form below.