Why do so many siding contractors offer multiple brands while your company only installs one?

Some contractors offer several products to cover more price points or customer preferences, and that's a legitimate business model. We chose to specialize in one system, James Hardie fiber cement, so our crew's training, tools, and warranty knowledge stay focused rather than spread across several installation methods.

What should I ask a contractor before hiring them for siding work in Whatcom County?

Ask whether they're specifically certified or trained on the product they're proposing, not just generally licensed to do construction. Also ask how they handle flashing and moisture barriers, since that detail work matters as much as the siding material in a climate this wet.

Is James Hardie siding actually different from other fiber cement brands like Allura or Cemplank?

All fiber cement siding shares the same basic non-combustible, cement-and-cellulose composition, so the core material properties are similar across brands. The differences come down to the factory finish system, the specific climate-engineered product lines, warranty terms, and the installer network each manufacturer supports.

What is HZ5 siding and does my Kendall home need it?

HZ5 is James Hardie's product line engineered for regions with higher moisture and humidity exposure, which includes most of western Washington. It's formulated to hold up better against the kind of sustained damp conditions Whatcom County sees for much of the year.

Does the moss and shade around Kendall properties affect how siding should be installed?

Yes — homes with heavy tree cover or shaded walls stay damp longer, so ventilation gaps, proper flashing laps, and moisture-barrier detailing matter even more than on an open, sunny lot. We adjust our approach based on how much shade and moss exposure a specific wall actually gets.

Siding in Kendall, Ferndale WA | James Hardie Experts

Siding in Kendall: Built for Whatcom County's Wet Side

Kendall sits in the part of Whatcom County where the marine air off the Salish Sea and the moisture rolling down from the foothills meet in the same weather system. Homes here get long stretches of steady, driving rain, humid air that never fully dries out between storms, and enough shade from mature evergreens that north- and east-facing walls stay damp far longer than the sunnier sides of the house. Add in the salt-tinged air that reaches this far inland on a west wind, and you have a climate that is genuinely hard on exterior building materials. It is not dramatic weather — no hurricanes, no hailstorms — but it is relentless, and relentless is what wears siding out.

Ferndale Siding Company works throughout this stretch of Whatcom County, and Kendall is a community we know well. A local crew matters here more than people expect: the failure patterns we see on a Kendall home facing open pasture are different from what we see on a tree-shaded lot a half mile away, and knowing that difference before we start a project changes how we detail flashing, ventilation, and trim.

What the Climate Actually Does to a House in Kendall

Moss and Constant Moisture

Moss doesn't just grow on roofs around here — it colonizes anything that stays damp long enough, including siding, trim, and the gaps behind poorly installed panels. A long moss season means more months where organic growth is actively holding moisture against your exterior surfaces instead of letting them dry. On wood-based sidings, that moisture cycle is what eventually causes swelling, delamination, and rot at the edges. On any siding, moss buildup in seams and joints traps water exactly where you don't want it sitting.

Driving Rain and Wind-Driven Water

Rain in this part of the county rarely falls straight down. Wind pushes it sideways into wall assemblies, which means the quality of flashing, house wrap, and butt-joint sealing matters as much as the siding material itself. A product that looks fine on a spec sheet can still fail on a house if the installation doesn't account for wind-driven water finding its way behind the cladding.

Salt Air and Metal Fasteners

Kendall is inland, but this region still gets enough marine influence that corrosion-resistant fasteners and hardware aren't optional extras — they're part of doing the job right. Cheaper fastener systems that would be fine in a dry inland climate don't hold up the same way here over 20-30 years.

Freeze-Thaw at the Margins

Whatcom County doesn't see deep freezes often, but Kendall gets enough cold snaps that any siding material holding moisture at the time of a freeze is at risk of cracking or splitting. This is one of the reasons moisture management matters more than most homeowners realize.

Why We Only Install James Hardie Fiber Cement

Ferndale Siding Company made a decision some contractors avoid making: we picked one siding system and stopped installing the alternatives. We install James Hardie fiber cement exclusively. Not vinyl, not LP SmartSide, not Cemplank or Allura, not primed spruce or cedar. That's a real limitation on what we offer, and we think homeowners deserve to know why we chose it.

What Hardie Gets Right for This Climate

Fiber cement doesn't absorb and swell with moisture the way wood-based products can, which matters directly in a long moss season with sustained dampness
It's non-combustible, which is a genuine safety advantage regardless of climate
The ColorPlus factory finish is baked on under controlled conditions, so it resists the fade and peel that field-applied paint struggles with under constant UV and moisture cycling
Hardie's HZ5 product line is engineered specifically for climates with high moisture exposure, which the Pacific Northwest qualifies as
The warranty is transferable and backed by a large, established manufacturer, not a regional supplier

Being Honest About the Trade-Offs of the Alternatives

Vinyl is inexpensive and low-maintenance, but it can warp under sustained heat and becomes brittle in cold snaps, and it simply cannot match fiber cement's fire performance. LP SmartSide, Cemplank, and Allura are legitimate products with real installers behind them — our decision to skip them is about matching our crew's expertise and warranty backing to one system we can install and stand behind consistently, not a claim that they fail on homes. Primed spruce and cedar are beautiful, traditional choices, but raw wood siding demands a maintenance schedule — recaulking, repainting, moisture checks — that most homeowners underestimate until they're several years in and behind on it. In a climate with this much sustained moisture, that maintenance gap is where problems start.

Comparing Siding Options for a Kendall Home

Material	Moisture Behavior	Maintenance Burden	Fire Rating	Typical Lifespan (installed to spec)
James Hardie Fiber Cement	Does not swell or rot; engineered HZ5 line for wet climates	Low — occasional wash, no repainting for years	Non-combustible	30-50 years
Vinyl	Doesn't absorb moisture but can warp/crack with temperature swings	Low	Combustible, can melt/deform near heat	20-30 years
Cedar / Primed Spruce	Absorbs moisture, prone to swelling and rot without upkeep	High — regular painting, caulking, inspection	Combustible	15-30 years with diligent maintenance
LP SmartSide / Engineered Wood	Treated to resist moisture but still wood-based at core	Moderate — periodic repainting and edge sealing	Combustible	20-30 years

How We Approach a Siding Project in Kendall

Assessment First

Before we quote anything, we walk the exterior and look for the specific damage patterns this climate causes: moss buildup at seams, staining that indicates trapped moisture, soft spots near ground contact, and flashing details that were done wrong the first time. On a lot with mature trees or open exposure to weather, we look at those sides of the house differently than the sheltered walls.

Moisture Management Behind the Siding

The siding material is only part of the system. Proper house wrap, correctly lapped flashing at windows and doors, and adequate clearance at the ground line all matter as much as what's on the outside. We don't cut corners on the parts you won't see once the siding is up, because those are the parts that determine whether the job lasts 10 years or 40.

Installation to Manufacturer Spec

James Hardie's warranty depends on correct installation — proper fastening, clearances, and joint treatment. We install to that spec every time, which is part of why we limit ourselves to one product system we know thoroughly rather than spreading our crew's expertise across several.

Beyond Siding: Roofing, Windows, and Decks

Siding doesn't work in isolation. A roof that's shedding moss-laden water onto a wall, windows with failed flashing, or a deck ledger board holding moisture against the house all undermine even a well-installed siding job. Ferndale Siding Company handles roofing, windows, and decks alongside siding so we can look at a Kendall property as one connected exterior system rather than a series of unrelated projects. That matters especially on older homes in this area, where one issue often feeds another over time.

What to Check Before You Hire Anyone for Exterior Work

Washington state contractor license, current and in good standing
Manufacturer certification or training specific to the siding product being installed
A written scope that specifies flashing and moisture-barrier details, not just "install siding"
Proof of liability insurance and workers' compensation coverage
Local references or a physical presence in Whatcom County, not just a mailing address
A warranty that names the manufacturer's backing, not just the contractor's own promise

Cost Factors to Expect

Every Kendall property is different, so we won't quote a number without seeing the house, but the main variables that move a siding project's cost are worth understanding upfront: how much of the existing siding and sheathing needs replacing versus reusing, how many corners, windows, and trim details the crew has to work around, whether moisture damage is found once the old siding comes off, and the scope of any flashing or house-wrap repair that's needed underneath. Homes with more architectural detail or existing water damage cost more not because of the material choice but because of the labor and repair involved.

Get a Straightforward Estimate

If you're thinking about siding, roofing, windows, or a deck for your home in Kendall, we're glad to come take a look and give you a straightforward, no-pressure estimate. You'll get an honest read on what your exterior actually needs and why — no upsell, no invented urgency. The form below is the easiest way to get started.