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Composite decking for Calgary's freeze-thaw and sun.
Chinook swings, deep frosts and high-altitude UV punish ordinary decks. Tarimatec is engineered to stay flat, grippy and colour-true through all of it.
Made for the chinook.
Few climates swing as hard as Calgary's. Tarimatec has low linear thermal expansion so it stays flat through freeze-thaw and chinook temperature spikes, an SRI over 80 so it stays cooler under intense prairie sun, and proven colour stability — with under 0.6% water absorption and a 25-year warranty.
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 →
Alberta code, Calgary permits, and detailing that moves with the weather
A deck in Calgary has to answer to two things at once: the paperwork and the weather. Most decks attached to a house need a development and building permit from the City of Calgary, and the structure is built to the Alberta Building Code and the frost-depth footing requirements that come with it. Tarimatec installs as a finished walking surface over that permitted structure, so your builder frames and inspects to code as usual, then lays the boards on a concealed aluminium sub-frame on top.
Detailing for chinook thermal movement
Calgary's single biggest deck problem is not cold, it is the speed of the swing. A chinook can lift the temperature 20 degrees or more in an afternoon, and every material on the deck expands and contracts with it. Tarimatec has low linear thermal expansion, and its hidden-fastener clip system leaves a deliberate expansion gap at every board end and joint so the boards can move without buckling, gapping unevenly, or working screws loose. There are no face screws to back out over a winter of freeze-thaw and chinook cycling.
Walkout basements and large suburban lots
Calgary's newer communities are full of walkout and walk-up lots where the main deck sits a full storey above grade over a lower patio. Those elevated, high-exposure decks take the worst of the sun and wind, and they are exactly where a colour-stable, low-movement board earns its place. Because Tarimatec is one coordinated system, the same boards and colours carry down stairs, across a lower-level patio, and up into privacy screening on an open prairie lot.
Weighing your options? Estimate your project with the composite deck cost calculator, or see how the material stacks up in our guide to Trex alternatives in Canada.
What the numbers say for a Calgary deck
The two properties that matter most in Calgary are how little the colour shifts under high-altitude UV and how little the board moves through a chinook swing. Both are tested to European standards and stated on Tarimatec's technical documentation.
| Property | Tarimatec | Test method / note |
|---|---|---|
| Colour change (salt-spray) | 1.25 ΔE | EN ISO 9227 — near-imperceptible fade under UV and weathering |
| Solar Reflectance Index | Over 80 | ASTM E1980 — stays cooler under intense prairie sun |
| Water absorption (24 h) | 0.59% hollow / 0.38% solid | EN 317 — resists moisture that drives freeze-thaw damage |
| Slip resistance | Class 3 · R11 | UNE-ENV 12633 — top pedestrian class, wet or icy |
| Fungus / rot | Not attackable | EN 12038 — no wood flour to rot, warp or splinter in dry air |
| Recyclability | 100% recyclable | Accessories included, at end of life |
| Certification | Tecnalia-verified EPD · ISO 9001 / 14001 | Third-party verified, not self-reported |
| Warranty | 25 years | Manufacturer |
European-engineered and Made in Europe (Spain); supplied in Canada as the exclusive Canadian distributor. Figures are from Tarimatec technical documentation and reflect tested European classifications.
Tones that hold true under the prairie sun
Calgary's clear, high-altitude light is unforgiving on colour. A tone that reads warm in a showroom can turn flat and grey after a couple of prairie summers. Because Tarimatec is coloured through the body and tests to a 1.25 ΔE colour change, the shade you choose is close to the shade you keep. The range runs to 31 tones across three collections, so you can match new-build stucco and stone or warm up an older Calgary character home.
Cooler greys and charcoals sit naturally against the greys and blacks of contemporary Calgary new-builds; the warm wood tones soften West-facing decks that take the full evening sun. Deep, saturated tones stay richer here than they would on a fade-prone board because the through-body colour and UV stability keep them from chalking.
See the full composite decking colour range →Composite decking in Calgary, answered
Does composite decking fade in the Alberta sun?
Tarimatec is coloured through the body and tests to a 1.25 ΔE colour change under salt-spray weathering (EN ISO 9227), which is a near-imperceptible shift. Combined with a Solar Reflectance Index over 80, it holds its tone and stays cooler underfoot through Calgary's intense, high-altitude UV far better than a surface-printed or fade-prone board.
How does composite decking handle chinook temperature swings?
Tarimatec has low linear thermal expansion, so it moves very little when a chinook lifts the temperature 20 degrees or more in an afternoon. It is installed on a hidden-fastener clip system that leaves a deliberate expansion gap at every board end, so the boards can expand and contract without buckling, gapping unevenly, or working face screws loose over repeated freeze-thaw cycling.
Is composite decking better than wood for Calgary's dry climate?
Calgary's dry air is what cracks, checks and splinters wood decks, and every dry summer makes it worse. Tarimatec is a rice-husk and mineral stone composite with no wood flour to lose moisture, so it will not crack or splinter as it ages, and with under 0.6% water absorption it also resists the moisture that drives freeze-thaw damage. It needs no staining or sealing.
Do I need a permit to build a deck in Calgary?
Most decks attached to a house, or above a certain height, need a development and building permit from the City of Calgary, and the structure is built to the Alberta Building Code with frost-depth footings. Confirm the current requirements with the City or your builder for your specific deck. Tarimatec installs as the finished surface over that permitted, code-built structure.
Building a deck in Calgary?
Order a sample shipped to Alberta, or request a quote in CAD.