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Composite decking · Vancouver

Composite decking for Vancouver's wet coast.

Rain, damp and moss are the enemy of a West Coast deck. Tarimatec is mineral-rich composite that shrugs them off — and stays grippy underfoot.

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Built for the West Coast

Rain-ready, rot-proof, grippy.

Tarimatec absorbs under 0.6% water, is not attackable by rot or soft-rot fungi, and won't feed the moss that plagues timber decks in Vancouver's damp. Class 3 (R11) slip resistance keeps it sure-footed in the rain, and the colour holds through grey winters and bright summers — with a 25-year warranty.

The system

One material, the whole outdoor space.

Decking

31 tones on a hidden-clip aluminium sub-frame. Explore decking →

Cladding & façade

Carry the deck up the wall. Explore cladding →

AXEL louvre

Privacy and shade, colour-matched. Discover AXEL →

Building on the coast

BC code, Vancouver permits and wet-coast detailing.

A composite deck on the Lower Mainland has to answer to two things: the moisture and the building department. Most residential decks in the City of Vancouver need a building permit once they sit more than 600 mm above grade or carry a roof, and deck framing, guards and stairs are assessed against the BC Building Code as adopted by the city. Tarimatec installs as a finished surface over your permitted substructure, so the boards sit on top of a code-compliant frame rather than replacing any structural review.

The detail that actually matters here is water. On the wet coast a deck spends months damp, so the assembly has to drain and breathe. Tarimatec boards are fixed with a concealed clip system on an aluminium sub-frame, which holds a consistent drainage gap between boards and lifts the deck off the joist so air moves underneath — the same ventilated logic behind rainscreen cladding. Water runs through and off instead of pooling, and there is no timber in the walking surface to soak up what lingers.

That makes the system a natural fit for the two decks Vancouver builds most: elevated North Shore and rainforest-lot decks where the ground never fully dries, and condo and townhouse balconies where a light, low-maintenance, well-draining surface is exactly what strata and property managers want. Because Tarimatec is the same material from deck to board to vertical finish, a balcony floor and its privacy screen can be colour-matched in one order.

Tarimatec is classified to European standards (Class 3 / R11 slip, Euroclass reaction-to-fire). For Vancouver projects that need CAN/ULC or ASTM data, or high-rise balcony fire detailing, talk to us early and we will route your file to the specification team.

The proof, tested

Why it holds up in the rain: the numbers.

On the West Coast the two specs that decide a deck are how much water it takes on and how grippy it stays when that water is sitting on the surface. Tarimatec is tested to European standards on both, so these are verified figures rather than marketing claims.

PropertyTarimatecTest method
Water absorption (24 h)0.59% hollow / 0.38% solidEN 317
Slip resistanceClass 3 · R11UNE-ENV 12633
Rot / soft-rot fungiNot attackableEN 12038 / CEN-TS 15083-2
Salt-spray colour change1.25 ΔEEN ISO 9227
Flexural strengthup to 46.4 MPa (solid)EN ISO 178
Environmental declarationTecnalia-verified EPDISO 14025 / EN 15804
Warranty25 yearsManufacturer

Under 0.6% water uptake is the figure that matters most for Vancouver: timber and wood-flour composites swell, cup and grow moss because they draw moisture in, while a mineral-rich board that barely absorbs stays dimensionally stable through a damp winter. Paired with coastal salt-air stability and Class 3 slip, it is engineered for exactly the conditions a Lower Mainland deck lives in.

Colour on the coast

Tones that read right under grey light.

Vancouver light is soft and often overcast, and colour behaves differently under it than it does in prairie sun. Cool greys and charcoals can flatten to a dull slab on a cloudy day, while warm and mid-toned boards keep their depth — which is why West Coast decks tend to lean into warm greige, weathered brown and soft-black tones that still have life in them when the sky is white. Tarimatec offers 31 tones across its Chromatic, Wood and Ethnic collections, in brushed Nature, grooved Tecno and deep Surco finishes, so there is range for a modern North Shore build, a heritage Kitsilano home, or a downtown balcony.

Two practical notes for the rain: the multi-tonal, brushed finishes hide the fine surface film that damp coastal decks pick up far better than a flat single colour, and a mid-tone reads cleaner between washes than a very dark board where every water spot shows. Because the same colours carry from deck to cladding to the AXEL louvre, you can match a privacy screen or a wall to the floor exactly. Browse the full range on the composite decking colours and finishes guide, then order a sample to see how a tone sits under your own light before you commit.

Vancouver questions

Composite decking on the wet coast: FAQ.

Is composite decking slippery when wet?
Not this one. Tarimatec carries a Class 3 (R11) slip-resistance rating under UNE-ENV 12633 — the top pedestrian class — which is why it is specified for pool decks and high-traffic terraces in the Mediterranean. On a rain-slick Vancouver deck or a wet balcony that grip is the point: the brushed surface stays sure-footed when a smooth board or a mossy timber deck would not.
Does composite decking rot or grow mould on the coast?
Tarimatec has no timber in the walking surface and absorbs under 0.6% water at 24 hours (EN 317), so there is nothing for rot or soft-rot fungi to attack — it is classed as not attackable under EN 12038. Moss and mould need a damp, porous surface to take hold; a mineral-rich board that barely absorbs and drains through a clip gap gives them very little to grip. You will still rinse off the surface film any coastal deck collects, but the board itself will not soften, cup or feed rot the way a wet-coast wood deck does.If you are weighing your options, you can compare it as a Trex alternative in Canada.
Do I need a permit to build a deck in Vancouver?
Usually yes once the deck is more than about 600 mm above grade or has a roof, and framing, guards and stairs are reviewed against the BC Building Code as adopted by the City of Vancouver. Confirm the current threshold with the city, since rules differ across Metro Vancouver municipalities. Tarimatec is the finished surface fixed over your permitted, code-compliant substructure, so it does not change the structural review — it sits on top of it.Once your frame is sorted, you can estimate your deck cost in CAD before you order.
Is composite decking a good choice for a condo balcony in Vancouver?
It is one of the best. Balconies are constantly damp, hard for owners to maintain, and often governed by strata rules, so a low-maintenance surface that drains, will not rot and needs no staining is exactly what property managers want. Tarimatec installs on a low-profile aluminium sub-frame with a concealed clip system, keeps a drainage gap, and can be colour-matched to a privacy screen in the same material. For high-rise balconies, share the building's fire and structural requirements early so we can route the file to the specification team.

Building a deck in Vancouver?

Order a sample shipped to BC, or request a quote in CAD.

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