Cedar Siding in BC: Grades, Profiles, and How to Care for It
There's a reason West Coast architecture is synonymous with cedar. Western Red Cedar siding weathers our rain, shrugs off our insects, insulates better than most alternatives, and looks like it grew out of the landscape — because it did. If you're siding (or re-siding) a BC home, this guide covers the decisions that matter: grade, profile, installation details, and the maintenance schedule that keeps it beautiful for decades.
Why Cedar Siding Still Wins in BC
Western Red Cedar is naturally rot-resistant thanks to thujaplicin, an organic compound in the heartwood — no chemical treatment needed. It's lightweight (easy on the structure and the installer), stable (it lies flat and stays flat better than most softwoods), and it accepts stain beautifully. It also has one of the best insulation values of any siding wood, and a soft, warm appearance that vinyl simply cannot fake.
In a province where a house can see 1,500 mm of rain a year in Vancouver and 40°C in Kelowna, a siding that tolerates both ends of the spectrum has an obvious case.
Cedar Siding Grades, Explained Simply
Grades describe appearance, not strength:
- Clear Vertical Grain (CVG): the premium grade — fine, straight grain running the board's length, virtually no knots. Used on prestige homes and feature walls. Expect the highest price and the most refined look.
- A Clear / A & Better: mostly clear with occasional minor characteristics. The sweet spot for high-end residential work where you want a clean face without paying CVG prices.
- Select Knotty (STK): sound, tight knots showcased intentionally. The classic choice for West Coast contemporary and craftsman homes — warm, rustic character at a friendlier price.
- Standard/utility grades: more defects, bigger knots, suited to cabins, outbuildings, and budget builds.
Grading applies to both rough and surfaced stock. Our advice: see actual boards before committing — knotty cedar varies a lot board to board, and choosing your pallet is part of the fun.
The Profiles: Picking Your Look
Bevel (clapboard): The traditional profile — boards wider at the bottom, overlapping in horizontal courses. Timeless, sheds water brilliantly, works on everything from heritage homes to modern farmhouses. The most common cedar siding in BC.
Channel (rustic): A profile with a recessed channel between boards, creating strong shadow lines. Often installed vertically or horizontally; reads more "coast cabin" and handles rustic-modern designs well. Its overlaps allow seasonal movement without gaps showing.
Tongue and groove: Boards interlock for a smooth, continuous surface — often used on soffits, porch ceilings, and contemporary walls. Because the joints conceal fasteners, T&G looks exceptionally clean.
Board and batten: Wide vertical boards with narrow battens covering the seams. The barn-and-farmhouse look, and one that suits rough sawn cedar perfectly. Vertical installation also sheds coastal rain like a roof.
Shingles and shakes: Cedar shingles (sawn smooth) and shakes (split, textured) for gables, accents, and full walls on heritage and coastal homes. Gorgeous, labour-intensive, and iconic in BC.
Can't decide? Bevel in A Clear for the main walls with board-and-batten gables in Select Knotty is a combination we see often — and it always lands.
Installation Basics That Decide Longevity
Siding failure in BC is almost always a water-management failure, not a wood failure. Non-negotiables:
- Rain screen: In coastal BC, building code expects a drained cavity — install siding over furring strips or a drainage mat, never flat against the wall in wet climates.
- Stainless or hot-dipped galvanized fasteners: Cedar extractives corrode cheap fasteners, which then streak the wall black.
- Back-prime everything: Seal all faces and every cut end before installation. Cut ends drink water; this step alone adds years.
- Ground clearance: Keep siding at least 6 inches above soil and 2 inches above decks and roofs.
- Flashing and gaps: Flash over windows and at wall bases, and leave manufacturer-recommended expansion gaps at joints.
The Maintenance Schedule
Cedar siding's reputation for being "high maintenance" is overstated — it needs attention, on a predictable schedule:
- Annually: walk the walls; wash off mildew and dirt (gentle wash, soft brush); clear vegetation touching the siding.
- Every 3–5 years: renew the finish on weather-beaten exposures — south and west walls take twice the UV and weather before north walls do.
- Every 5–7 years: full recoat for most finishes, sooner on horizontal-sun-facing surfaces.
A penetrating, non-peeling finish (we stock Broda, formulated for Western Red Cedar) makes recoating a wash-and-apply job rather than a scrape-and-strip ordeal.
How Long Does Cedar Siding Last?
Properly installed and finished, 30 to 50 years is a realistic expectation — many BC homes wear their original cedar siding past the half-century mark. Neglected, unsealed cedar in a wet shaded lot can start failing at the board bottoms in 15–20 years. The difference is the installation details and the finish cycle above. The wood itself, almost never, is the limit.
When Something Goes Wrong: Repairs
Day-to-day wear rarely forces a full re-side. A split board, a rot spot where a planter sat against the wall, a section damaged by wind — all of these are fixed by replacing just the affected boards. Cedar siding profiles are standard enough that a bevel, channel, or board-and-batten replacement can usually be milled to match, and a penetrating finish lets you blend the new board's colour into the old in a season of weathering. Keep a few spare boards from your original order stored flat and dry in the garage — it's the cheapest insurance on the whole project.
Re-siding a BC home in cedar is one of the few projects that pays you back in curb appeal, weather performance, and resale value all at once. Talk to us about grades and profiles for your project — we stock bevel, channel, and board-and-batten-ready stock in rough and S1S2E finishes, and we'll help you run the coverage math so you buy the right amount the first time.