Ferndale Siding Siding Built for Custer's Coastal Conditions
Custer sits in the northern stretch of Whatcom County, close enough to the water that salt air is a fact of life for anyone maintaining an exterior. Between the marine moisture rolling in off the Strait of Georgia and the long, gray stretch of fall through spring, siding here works harder than it does in drier inland climates. We've spent enough time on roofs and walls in this part of the county to know exactly which materials hold up and which ones start showing problems within a few years.
What the Climate Does to a Home's Exterior
Three things define exterior wear in Custer and the surrounding Ferndale area:
- Salt-laden air — coastal moisture accelerates corrosion on fasteners, trim, and any siding product with a finish that isn't built to handle it. Over time it can dull paint and stress seams.
- Driving rain — wind-driven storms push water sideways into wall assemblies, not just straight down. Siding with weak seams, poor flashing details, or a finish that absorbs water is going to show swelling, staining, or rot long before a well-installed, moisture-resistant system will.
- A long moss and mildew season — shaded north walls and anything under tree cover stay damp for months at a stretch. That constant dampness is exactly the condition organic growth needs, and it's hard on materials that aren't dimensionally stable or that trap moisture against the substrate.
None of this is unique to any one street or neighborhood in Custer — it's the reality for homes anywhere in this part of Whatcom County that sit close to open water and get the full brunt of Pacific storm systems moving through.
Why We Install James Hardie Fiber Cement — and Nothing Else
We made a decision a while back to standardize on James Hardie fiber cement siding exclusively. We don't install vinyl, LP SmartSide, Cemplank, Allura, or unfinished wood siding like primed spruce or cedar, and we're upfront about why:
- Non-combustible material — fiber cement doesn't feed a fire the way wood-based products can, which matters more every year in the Pacific Northwest.
- Built for moisture, not just painted against it — Hardie's HZ product lines are engineered for specific climate zones, and the HZ5 formulation used in our region is designed around exactly the rain and humidity exposure Custer sees.
- A factory finish that's meant to last — ColorPlus finishing is baked on in a controlled environment, not brushed on in the field, so it resists fading and holds up better against salt air and UV than field-applied paint.
- Dimensional stability — fiber cement doesn't swell, warp, or rot the way wood-based siding can when it stays wet for extended stretches, which is a real advantage during a long moss season.
- A warranty that's actually transferable — that matters to homeowners who may sell within the product's lifespan, and it reflects the manufacturer's confidence in the material.
We're not going to tell you vinyl or LP SmartSide are junk — plenty of homes have them and get reasonable service out of them. But we've seen enough seam failures, moisture intrusion, and premature finish breakdown on lesser products in wet coastal conditions that we no longer put our name behind installing them. Fiber cement, installed correctly, is simply the better long-term bet for this climate, and that's the standard we hold ourselves to.
Full Exterior Work, Not Just Siding
Siding doesn't work in isolation — it's one piece of a home's exterior envelope, so we handle the rest of it too:
- Roofing — a roof that isn't shedding water and moss properly will send that moisture straight down the wall, undermining even good siding.
- Windows — improperly flashed window openings are one of the most common sources of hidden water damage behind siding, especially on walls that take direct rain.
- Decks — exposed to the same salt air and rain cycles, deck materials and fasteners need the same climate-appropriate approach as the siding above them.
Looking at the whole exterior as one system — rather than patching one component and ignoring the rest — is how you actually stop the cycle of moss, moisture, and premature wear that shows up on so many homes in this area.
Why a Local Crew Matters
Installation quality is what separates a siding system that lasts thirty years from one that fails in five, regardless of the product. Flashing details, proper gapping, fastener placement, and how the assembly handles wind-driven rain all depend on a crew that understands the specific conditions a Custer home faces — not a generic install done the same way regardless of climate. Being local also means we're not guessing at what this stretch of Whatcom County throws at a house; we see it firsthand, on the roofs and walls of homes near our own.
Get a Straight Answer About Your Home
If you're dealing with moss buildup, water staining, or siding that's showing its age, we're happy to take a look and give you an honest read on what's going on and what it would take to fix it right. Reach out for a free, no-pressure estimate — there's no obligation, just a clear picture of your options.
