How do I know if a siding contractor is actually certified to install the product they're recommending?

Ask for their manufacturer certification directly and confirm it with the manufacturer, not just the contractor's word. James Hardie, for example, has an Elite Preferred contractor tier with published requirements. A contractor who can't produce documentation, or gets vague about it, is a red flag regardless of which product they're pushing.

Is LP SmartSide a bad product, or just not what your company installs?

It's a legitimate, widely used product installed successfully by many reputable contractors. We chose to specialize in one system, James Hardie fiber cement, because of how it holds up specifically against Whatcom County's moisture and maintenance realities over the long run — that's a business decision about trade-offs, not a claim that the product fails.

What's the actual difference between fiber cement and engineered wood siding at a material level?

Fiber cement is made from cement, sand, and cellulose fiber and doesn't swell or rot the way wood can. Engineered wood siding, like LP SmartSide, uses treated wood strand as its core, which performs well but still depends on an intact paint film and sealed edges to keep moisture out of the substrate.

Does Lynden really get enough salt air and rain to matter for siding choice?

Yes — Whatcom County sits close enough to the Strait of Georgia and Bellingham Bay to carry salt-tinged, moisture-heavy air well inland, and Lynden gets long stretches of driving rain plus a moss season that runs much of the year on shaded walls. That combination is exactly the kind of sustained, low-grade exposure that separates products over a 20-30 year timeline.

What should I budget for if I go with a product that requires repainting, like LP SmartSide?

Plan on a repaint cycle roughly every 7 to 12 years depending on sun exposure, plus annual caulk and joint inspection in between. Get a real number from a painting contractor in your area rather than guessing, and factor that recurring cost into your comparison against a factory-finished product that doesn't require it.

LP SmartSide in Whatcom County: An Honest Look

What LP SmartSide Actually Is

LP SmartSide is an engineered wood siding product. The core is strand-based, similar in concept to OSB, but the strands are oriented and pressed under specific conditions, then treated with LP's SmartGuard process — a combination of resins, waxes, and zinc borate meant to resist moisture absorption, fungal decay, and insect damage. It's finished with a factory primer (and on some product lines, a factory topcoat) and sold in lap, panel, and trim configurations.

It is a legitimate, widely used product. A lot of reputable contractors install it, and a lot of homeowners are happy with it. We're not on that list, and we think homeowners deserve a straight explanation of why — not a sales pitch dressed up as one.

What LP SmartSide Gets Right

Credit where it's due, because an honest comparison has to start here:

Impact resistance — the engineered wood substrate holds up well against hail, thrown debris, and general jobsite abuse compared to some rigid siding materials.
Workability — it cuts, nails, and handles more like traditional wood siding, which some crews find faster to install than fiber cement.
Lighter weight — easier on a crew's back and, in some cases, on labor cost per square.
Lower material cost in many markets compared to premium fiber cement.

None of that is marketing spin. Those are real, verifiable advantages. Where things get complicated is what happens to the product over fifteen, twenty, thirty years on a house in this part of Washington.

Why Whatcom County's Climate Changes the Math

Lynden sits in a stretch of Whatcom County that gets a specific combination of weather stress: long stretches of driving rain off the Pacific systems, humid air with salt influence carried in from the Strait of Georgia and Bellingham Bay, and a moss and algae season that can run most of the year on north-facing and shaded walls. None of that is exotic — it's just consistent, low-grade moisture pressure, month after month, year after year.

Any exterior product can be engineered to handle rain. The question that matters is what happens at the seams, the cut edges, and the fastener penetrations after ten or fifteen winters of that pressure — and after a homeowner has skipped a caulk touch-up cycle or two, which happens on real houses, not just in manufacturer test labs.

The Core Trade-off: It's Still a Wood-Based Product

SmartGuard treatment genuinely improves LP SmartSide's moisture resistance compared to untreated engineered wood. But the product is still wood strand at its core, and wood strand swells when it takes on water. The manufacturer's own installation instructions are specific about this — gap requirements at butt joints and panel edges, sealant at every penetration, paint maintenance on a defined schedule — because the entire system depends on keeping water out of the substrate, not on the substrate shrugging water off.

Fiber cement doesn't have that same failure mode. It's cement, sand, and cellulose fiber — it doesn't swell, delaminate, or rot the way a wood-based product can if moisture gets past the finish. That single difference in what the material is made of drives most of the rest of this page.

Cut Edges Are the Weak Point

Factory faces on LP SmartSide are treated and primed at the plant. Every field cut — at corners, window returns, and trim intersections — exposes untreated substrate that has to be sealed by hand, on a ladder, in the field, correctly, every single time. Miss one, or have the sealant fail years later, and that's where moisture gets a foothold. It's not a defect in the product; it's a structural reality of how the product is built and how it has to be installed.

Installation Sensitivity

A lot of the SmartSide performance complaints we hear about in this region trace back to installation, not the material itself — clearance gaps not held, caulk skipped or under-applied, flashing details rushed. That's a fair point in the product's defense. But it also means the product's real-world performance depends heavily on finding a crew that will slow down and follow every manufacturer detail, every time, on every wall — including the ones nobody sees from the street.

Maintenance Is the Ongoing Cost, Not the Install

The installation cost is only part of the story. LP SmartSide is a paint-film-dependent product: the factory primer is a base, not a finish, and the topcoat paint is what actually protects the substrate long-term. That means:

A repaint cycle, typically in the range of every 7 to 12 years depending on exposure, sun, and paint quality — sooner on south- and west-facing walls that take the brunt of Whatcom County's weather.
Annual caulk inspection at joints, trim, and penetrations, with recaulking as needed before winter rains set in.
Moss and algae cleaning on shaded or north-facing walls, which in this region can mean most of the house given how much of the year stays damp.

None of that is unreasonable to ask of a homeowner in the abstract. But most homeowners don't budget for it, don't track it, and don't remember it five or ten years after the siding goes up — and a missed cycle on a wood-based product has more consequences than a missed cycle on cement.

Warranty Structure: Read the Fine Print

Factor	LP SmartSide (typical)	James Hardie ColorPlus
Substrate	Engineered wood strand, treated	Fiber cement (non-combustible)
Factory finish	Primer, or primer + topcoat on select lines	Baked-on ColorPlus finish system
Repaint requirement	Yes, on a maintenance schedule	Not required for the life of the finish warranty
Coverage if unmaintained	Can be limited or voided by missed maintenance	Warranty is not tied to a repaint schedule
Typical warranty length	Commonly 5-year 100% labor/material, prorated to 30-50 years	Non-prorated coverage, transferable to one subsequent owner

The specific terms vary by product line and installer certification on both sides, so any homeowner comparing products should read the actual warranty document, not a sales sheet summary. But the structural difference is worth understanding: a lot of engineered wood warranties have maintenance obligations baked in, and a lapse in maintenance is one of the more common reasons a claim gets denied. That's a real cost that doesn't show up on the estimate.

Why We Standardized on James Hardie Instead

We made a decision years ago to install one product system — James Hardie fiber cement — and we haven't second-guessed it. The reasons come down to what matters most for houses in this specific climate:

Non-combustible — fiber cement doesn't feed a fire the way wood-based products can, which matters for insurance and for peace of mind.
Climate-engineered product lines — Hardie's HZ5 formulation is built for the wetter, colder conditions found in the Pacific Northwest, not a one-size-fits-all national spec.
ColorPlus factory finish — baked on at the plant under controlled conditions, which holds up dramatically longer than field-applied paint and isn't dependent on a homeowner's maintenance calendar.
Dimensional stability — fiber cement doesn't swell or warp with moisture cycling the way wood strand can.
Stronger, simpler warranty terms — coverage that isn't contingent on a repaint schedule, and that transfers if the house sells.

It's not that Hardie is maintenance-free forever — no exterior product is. It's that the maintenance burden is smaller, the failure mode is less severe, and the material itself doesn't depend on a perfect paint film to stay structurally sound through a Lynden winter.

What to Ask Before You Choose a Siding Product

Whatever you decide, and whoever you hire, these are the questions worth asking any contractor before they start:

What is the manufacturer's required clearance gap at joints, and how will you confirm it's held on every wall?
Who is responsible for the field-cut edge sealant, and what product are they using?
What does the warranty actually require of me as the homeowner to stay valid?
Is my quote based on a factory-finished product, or does it assume I'll be painting or repainting on a schedule?
How does this product perform specifically in a high-moisture, low-sun climate like ours — not just the national average claim?

If a contractor can't answer those clearly, that's worth noting regardless of which siding brand they're proposing.

Talk to Us About Your House

We're not going to tell you LP SmartSide is a bad product — it isn't, and plenty of homes wear it fine. We're telling you why, after weighing the trade-offs against what houses in Whatcom County actually face over decades of driving rain, moss, and salt-tinged air, we chose to install only James Hardie fiber cement and stake our name on it. If you're planning a siding project in Lynden or the surrounding area, we're happy to walk your home, look at your exposures, and give you a straightforward, no-pressure estimate — including an honest answer if Hardie isn't the right fit for your budget or project.