Kendall Composite Decking Installation — Ferndale Crew

Composite Decking Built for Kendall's Weather

Kendall sits back from the water, up toward the Nooksack foothills, but it doesn't escape the weather pattern that defines Whatcom County. The same marine-influenced system that soaks Ferndale and the coastline pushes rain and heavy moisture inland too, and homes tucked under tree cover out this way often see even more shade and dampness than properties closer to town. Long wet winters, driving rain that gets under railings and against ledger boards, and a moss season that can run from fall through spring all put real stress on an outdoor deck. Wood decking in this environment needs constant attention — sanding, sealing, staining, and fighting rot in the spots that never fully dry out. Composite decking was built to handle exactly this kind of climate, which is why it's become the practical choice for homeowners in this part of the county.

Why Homeowners in Kendall Choose Composite Over Wood

We still install wood decking when a homeowner wants that look and understands the upkeep involved. But for most Kendall properties — especially ones with tree cover, north-facing exposure, or a deck that sits low to the ground — composite is the better long-term match for the climate. Here's how the two compare for a property like this:

Factor	Wood Decking	Composite Decking
Annual maintenance	Sanding, staining/sealing every 1-2 years	Periodic cleaning, no sealing or staining
Moisture behavior	Swells, cracks, and checks with wet/dry cycles	Dimensionally stable, won't absorb water into the core (capped boards)
Moss and algae resistance	Textured grain traps spores, needs regular treatment	Smoother cap layer sheds moss and algae more easily
Splintering/graying	Common as boards age and weather	Color is baked into the material, doesn't gray or splinter
Upfront material cost	Generally lower	Generally higher
Expected lifespan with care	15-20 years with consistent maintenance	25-30+ years, backed by manufacturer warranty

The honest trade-off is upfront cost versus long-term labor. Composite costs more to install. Wood costs more in the years afterward, in time and in the maintenance dollars that add up whether you do the work yourself or hire it out.

Capped vs. Uncapped Composite

Not all composite decking is built the same, and this matters more in a wet climate than a dry one. Uncapped composite is a wood-plastic blend all the way through, which means the exposed surface can still absorb moisture and is more prone to staining and mold growth over time. Capped composite has a polymer shell wrapped around that core, sealing it against water and giving it real resistance to moss, mildew, and staining. In a property that sees the kind of shade and dampness common around Kendall, we generally steer homeowners toward capped boards — the extra durability is worth it here specifically because of how much moisture the deck will actually see.

What a Correct Composite Deck Build Actually Involves

Composite boards are only as good as what's underneath them. A deck that looks right on day one but was framed wrong will show problems within a few wet seasons — soft spots, boards that bounce or creep, or moisture trapped where it can't dry.

Ledger Board and Flashing

Where the deck attaches to the house is the single most common failure point on any deck in this climate, wood or composite. If the ledger board isn't properly flashed to shed water away from the house band joist, driving rain works its way in over time and rots the framing behind the siding — often invisibly, until there's real damage. Correct flashing detail at this connection isn't optional, and it's the first thing we check on any repair or rebuild.

Joist Spacing and Fastening

Composite boards need tighter joist spacing than most wood decking — typically 16 inches on center for boards run straight, and tighter still (often 12 inches) for a diagonal or picture-frame layout. Manufacturers publish these specs for a reason: spacing them too wide leads to sagging and a springy feel underfoot, and it can void the product warranty. We use hidden fastener systems on grooved-edge boards, which gives a clean surface with no exposed screw heads collecting grime or breaking the cap layer.

Airflow Underneath the Deck

Composite doesn't rot, but the framing underneath it still can if moisture gets trapped with nowhere to go. Proper ground clearance and airflow under the deck keep humidity from pooling against the joists, which matters even more on a shaded, low-lying lot than it does out in the open.

Choosing the Right Board for This Property

Beyond capped versus uncapped, a few other choices actually matter for a Kendall deck rather than being purely cosmetic:

• Grooved vs. solid edge — grooved boards allow hidden fastening for a cleaner look; solid boards are typically face-screwed and show fastener heads.
• Board color — darker colors show less moss staining early on but absorb more heat in direct sun; lighter colors run cooler underfoot but can show algae growth sooner in shaded, damp spots.
• Surface texture — a wood-grain embossed texture gives better slip resistance on a deck that stays damp longer under tree cover, which is a real safety consideration, not just an appearance choice.
• Warranty structure — read what's actually covered. Most composite warranties cover structural integrity and fade for 25 years or more, but stain and mold coverage is often shorter and depends on basic upkeep being done.

We work with the composite lines that hold up under these conditions — boards like Trex and TimberTech are common examples of manufacturers with capped products and warranty terms suited to a wet Pacific Northwest climate — and we'll walk through the actual options and trade-offs for your property rather than pushing one brand by default.

Our Process, Start to Finish

1. On-site assessment — we look at the existing deck or build site, note drainage, shade, ledger condition, and any framing issues before quoting anything.
2. Design and material selection — size, layout, railing style, and board selection based on how the space is actually used and how much sun or shade it gets.
3. Permit check — decks above a certain height or attached to the home typically require a permit through the applicable county or city process; we handle that step rather than leaving it on the homeowner.
4. Demo, if replacing an existing deck — removal and disposal of old decking and, when needed, damaged framing.
5. Framing and flashing — substructure built to span and spacing requirements, with ledger flashing done correctly the first time.
6. Decking installation — boards installed with hidden fasteners on proper spacing, working around posts, stairs, and transitions.
7. Railings and finish details — railing system, stair treads, fascia, and trim to close out the build.
8. Final walkthrough — we go over the finished deck with you, including what maintenance it actually needs going forward.

Maintenance Through a Whatcom County Winter

Composite decking cuts maintenance dramatically compared to wood, but "low maintenance" isn't "no maintenance," especially through a long wet season. Moss and algae can still take hold on any exterior surface that stays damp and shaded, composite included — the difference is how easily it comes off, not whether it ever shows up.

• Sweep debris and leaves off regularly through fall — trapped organic matter holds moisture against the board surface.
• Clean with a soft-bristle brush and a mild soap-and-water solution or a composite-safe deck cleaner a couple of times a year, more often in shaded areas.
• Avoid a pressure washer on high settings — it can damage the cap layer on composite boards; a garden hose or low-pressure setting is enough.
• Keep gutters and downspouts clear so runoff isn't dumping directly onto the deck surface.
• Check that drainage under and around the deck hasn't been blocked by landscaping, mulch, or debris buildup.
• Trim back overhanging branches where practical to cut down on shade and falling debris.

Why a Crew That Already Works in Kendall Matters

A deck build isn't just about the boards — it's about getting the framing, flashing, and drainage right for the actual conditions on your lot. A crew that regularly works properties around Kendall and greater Ferndale already knows what's common out here: sloped lots, tree cover that keeps certain areas shaded most of the day, and the permit process that applies through the county. That familiarity means fewer surprises mid-project and a build that's actually suited to the site instead of a generic install. It also means we're not learning the local permit and inspection process on your job, and we're close enough that a warranty callback or a maintenance question doesn't turn into a half-day trip for us or a long wait for you.

What Affects the Cost of a Composite Deck

We don't quote sight unseen, because the factors that move price are specific to each property. In general terms, here's what has the biggest effect:

Cost Factor	Why It Matters
Deck size and shape	More square footage and more cuts (angles, curves) mean more material and labor
Substructure condition	An existing frame that's sound can sometimes be reused; rotted or undersized framing needs rebuilding
Board tier	Entry-level capped composite costs less than premium lines with heavier caps and longer warranties
Railing system	Composite or metal railing systems cost more than basic wood rail but need far less upkeep
Site access	A backyard with tight access or a steep lot takes longer to work and adds labor time
Height and structure	Multi-level decks or ones requiring engineered footings and permits add cost and time

Questions to Ask Before You Hire

Composite decking is a real investment, and the installation quality matters as much as the material choice. Before hiring anyone for a deck project in this area, it's worth confirming:

• Are they licensed, bonded, and insured to work in Washington?
• Do they pull permits themselves, or leave that on you?
• Will they specify joist spacing and fastening method in writing, matched to the board manufacturer's requirements?
• How do they handle ledger board flashing where the deck meets the house?
• What does the manufacturer's warranty actually cover, and does the installer's workmanship come with its own warranty separately?
• Can they explain the maintenance the specific board line will need, honestly, not just "none"?

If you're planning a new deck or replacing an aging wood one in Kendall, we're glad to come take a look, walk the site, and put together a straightforward, no-pressure estimate. Use the form below to get in touch and we'll go from there.