Birch Bay Siding One Product, One Standard
We get asked fairly often why we don't offer vinyl, LP SmartSide, Cemplank, Allura, or cedar as options alongside James Hardie. The honest answer is that we made a business decision years ago to stop installing anything we didn't feel confident standing behind for the long haul on homes here in Birch Bay and the rest of Whatcom County. That narrowed our lineup to one manufacturer. This page explains the reasoning, not the marketing.
What Our Climate Actually Does to Siding
Birch Bay sits right on the water, which means salt air is a constant companion, not an occasional visitor. Add in driving winter rain off the Strait of Georgia, long stretches of damp shoulder seasons, and a moss season that can run from October through May, and you've got a siding environment that punishes anything with weak spots. Wood-based products absorb moisture and swell. Vinyl can warp, fade, and gap at the seams as temperatures and humidity swing. Even well-made products fail early when the material itself isn't built for sustained moisture exposure.
Why Fiber Cement Wins This Fight
James Hardie siding is made primarily from cement, sand, and cellulose fibers. It doesn't absorb water the way wood-based composite products do, it doesn't expand and contract the way vinyl does, and it's non-combustible — a real consideration given the dry-summer wildfire risk that's become more common even in Western Washington. It holds paint and factory finish far more consistently than wood substrates, and it doesn't feed the moss and mildew growth that thrives in our shaded, damp microclimates the way raw or primed wood siding can.
ColorPlus Technology
Hardie's ColorPlus finish is baked on in a factory-controlled process, not brushed or sprayed on-site. That matters here because field-applied paint jobs on siding are constantly fighting moisture in the substrate before they even cure. A factory finish means better color consistency, better fade resistance, and a real warranty on the finish itself — not just the board.
Climate-Engineered HZ Product Lines
Hardie doesn't make one product and ship it everywhere. Their HZ10 line is engineered for wetter, colder climates like ours, with formulations aimed at the freeze-thaw and moisture cycles typical of the Pacific Northwest. That's a meaningfully different approach than a one-size-fits-all siding product, and it's part of why we trust it on homes that take a direct hit from marine weather.
What We're Not Installing, and Why
- Vinyl siding — inexpensive and low-maintenance in mild climates, but it can become brittle in cold snaps, fade unevenly under UV exposure over years, and it's not repairable in the way fiber cement is; damaged panels usually need full replacement.
- LP SmartSide and other wood-strand composites — treated to resist moisture, but any breach in that treatment (a cut edge, a fastener hole, a caulking failure) opens the door to swelling and rot, which is a serious risk given how much rain this area sees annually.
- Cemplank and Allura — both are fiber cement products and both make reasonable siding. Our decision here isn't about the base material being flawed; it's about standardizing our crews, our installation details, our warranty process, and our supplier relationship around one system we know inside and out, backed by a manufacturer whose transferable warranty and support network we trust.
- Primed spruce and cedar — beautiful, traditional, and genuinely appealing for the right homeowner, but real wood requires an ongoing maintenance commitment (recoating, caulking, inspecting for rot) that most homeowners underestimate until they're a few years in, especially with our moss season working against them.
Installation Matters as Much as the Product
Fiber cement siding is only as good as the installation behind it. Correct fastener placement, proper clearances above rooflines and decks, correctly lapped flashing, and manufacturer-spec gaps at trim are what actually keep water out over 20-plus years. We install exclusively to Hardie's published specifications, which is part of why we don't mix in other siding lines — one system means our crews aren't guessing at details between products with different tolerances and requirements.
The Warranty That Backs It Up
James Hardie's transferable limited warranty is a real factor in our decision. It's a warranty from a manufacturer with a long track record in siding specifically, not a company that added siding to a broader product catalog. When installed to spec, that warranty follows the home, which matters to buyers and sellers alike in a market where exterior condition affects resale.
Our Bottom Line
We're not going to tell you every other siding product is a bad choice for every homeowner everywhere. We're telling you that for homes exposed to Birch Bay's salt air, driving rain, and moss season, we've found one product that we can install correctly, warranty confidently, and expect to perform for decades. That's why James Hardie is the only siding on our trucks.
If you're weighing siding options for a home in Birch Bay or elsewhere in Whatcom County, we're happy to walk your property, look at your exposure, and give you a straightforward, no-pressure estimate — fill out the form below to get started.