Glenhaven Siding Cedar Siding: A Look We Understand, A Maintenance Reality We Don't Recommend
Cedar siding has a long history in the Pacific Northwest, and it's easy to see why homeowners in Whatcom County are drawn to it. The grain, the warmth, the way it ages — cedar has a natural character that manufactured products spend a lot of effort trying to imitate. We're not going to pretend otherwise. But after years of working on homes throughout Glenhaven and the surrounding area, we made a deliberate decision to stop installing it. This page explains why, honestly and without exaggeration.
What Cedar Gets Right
Cedar is a real wood product with genuine advantages. It's naturally resistant to insects and has some inherent decay resistance thanks to its oils. It's lightweight, workable, and takes stain or paint in a way that many homeowners find more attractive than factory-finished alternatives. In a dry, stable climate, well-maintained cedar can last for decades. None of that is in dispute.
The Problem Is Our Climate, Not the Wood Itself
Cedar's biggest vulnerability is moisture, and moisture is the one thing Glenhaven has in abundance. Whatcom County sees long stretches of driving rain, persistent marine humidity, and — because we're close enough to Puget Sound and the Strait for salt-laden air to matter — a slow, steady exposure to airborne salt that accelerates wear on wood surfaces. Add in the region's extended moss and algae season, when shaded, damp siding stays wet for days at a time, and you have a near-perfect environment for the exact problems cedar is most susceptible to: cupping, checking, moisture wicking at end grain and fastener points, and fungal staining.
None of this means cedar "fails." It means cedar requires a level of ongoing homeowner commitment that most people don't fully appreciate when they choose it:
- Refinishing on a schedule. Stain and sealant on cedar typically need reapplication every 2-5 years depending on sun and rain exposure — sooner on north-facing or shaded walls that stay damp longer.
- Moss and algae control. In our climate, shaded siding can develop moss growth within a single wet season if it isn't cleaned and treated regularly.
- Caulking and joint maintenance. Board joints, butt seams, and trim intersections need to be inspected and re-sealed periodically, or moisture finds its way behind the siding.
- Careful attention at grade. Cedar installed too close to soil, decking, or irrigation spray is at much higher risk of moisture damage — a detail that's easy to get wrong and expensive to fix later.
Homeowners who stay on top of that maintenance can get good results from cedar. But it's a real, recurring obligation — not a one-time cost — and in a market like ours, where humidity and rain don't let up for months at a stretch, the margin for deferred maintenance is thin.
Why We Don't Install It
We're a small crew that stands behind our installs. When we put siding on a home, we want to be confident that the product will perform well with normal, reasonable upkeep — not siding that punishes a missed refinishing cycle with rot behind the boards. Cedar's performance is too dependent on maintenance discipline that we can't control once the job is done. We've chosen not to install a product where the difference between "looks great in year ten" and "needs board replacement in year ten" often comes down to whether someone kept up with staining on schedule.
That's a judgment call about risk, not a claim that cedar is a bad product. It's a well-established, legitimate building material. It's just not the standard we want to build our reputation on in a climate that works against it this consistently.
What We Install Instead
We install James Hardie fiber cement siding exclusively. It's not wood, so it doesn't share cedar's moisture-driven failure modes — it won't rot, and it's not a food source for the fungal growth that thrives in our wet, mossy shoulder seasons. Hardie's ColorPlus finish is baked on at the factory under controlled conditions, which means the color coat holds up far longer than field-applied stain, and touch-ups are the exception rather than a recurring maintenance task. Hardie also engineers specific product lines (HZ10) for climates like ours, accounting for moisture exposure that generic siding specs don't address.
It's also non-combustible, which matters more each year as wildfire smoke and regional fire risk become a bigger part of the conversation in Western Washington, and it carries a strong transferable warranty when installed to manufacturer spec — something we take seriously on every job.
The Honest Trade-Off
| Factor | Cedar | Fiber Cement (Hardie) |
|---|---|---|
| Refinishing | Every 2-5 years | Factory finish, touch-up only |
| Moisture/rot risk | High in wet, shaded areas | Not wood-based, won't rot |
| Moss/algae resistance | Requires active treatment | Much lower maintenance burden |
| Fire resistance | Combustible | Non-combustible |
If you're weighing siding options for a home in Glenhaven or anywhere else in Whatcom County, we're glad to walk through what we see on local homes and explain what a Hardie installation actually involves. Reach out for a free, no-pressure estimate — there's no obligation, and we're happy to answer honest questions either way.