What is the price difference between capped composite and uncapped composite decking installed in Calgary?

Capped composite decking costs approximately $5-12 more per square foot installed than uncapped composite in Calgary, with capped running $45-70/sqft versus uncapped at $40-58/sqft. The price difference reflects the superior performance and longer warranties that come with the protective polymer shell on capped products.

Capped composite decking features a protective polymer cap that completely encases the wood-fiber composite core. This cap provides enhanced stain resistance, fade protection, and moisture barrier compared to uncapped composite, which has the raw composite material exposed on all surfaces. In Calgary's intense UV environment at 1,045 metres elevation, this cap makes a significant difference in long-term appearance and performance.

The material cost difference is typically $3-6 per square foot between comparable product lines. For example, TimberTech's uncapped Edge Collection runs $12-15/sqft for materials, while their capped Azek Vintage Collection runs $16-20/sqft. Trex's uncapped Select line costs $10-13/sqft versus their capped Transcend line at $14-18/sqft. Labour costs remain similar since installation methods are identical, adding the same $25-35/sqft for professional installation including substructure.

Calgary's extreme climate conditions make the capped upgrade particularly worthwhile. The city's chinook wind cycles create rapid temperature swings that can stress uncapped composite surfaces, potentially leading to moisture infiltration and expansion issues. Calgary's exceptional UV exposure at elevation will fade uncapped composite more rapidly than capped versions with UV-stabilized caps. Additionally, Calgary's frequent hailstorms can damage the surface of uncapped composite, while capped products generally resist hail impact better due to their harder protective shell.

Performance differences justify the cost premium for most Calgary homeowners. Capped composite typically carries 25-30 year fade and stain warranties compared to 10-15 years for uncapped products. The superior stain resistance means spilled wine, barbecue sauce, or leaf tannins won't permanently mark capped surfaces. Capped products also clean more easily and maintain their original colour longer in Calgary's intense sun.

For a typical 300-square-foot deck, expect to pay $1,500-$3,600 more for capped composite over uncapped when professionally installed. While this represents a significant upfront investment, the extended warranty coverage, reduced maintenance requirements, and better long-term appearance retention make capped composite the preferred choice for most Calgary deck projects where composite is being considered.

Consider uncapped composite only if budget is the primary concern and you're comfortable with more frequent cleaning and potential earlier replacement. For Calgary's challenging climate, the capped upgrade typically proves worthwhile for the enhanced durability and peace of mind it provides over the deck's 20-30 year lifespan.

Need help finding a deck builder experienced with composite installations? Calgary Deck Contractors can match you with contractors familiar with both capped and uncapped product lines for free estimates on your project.

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Looking for experienced contractors? The Calgary Construction Network connects homeowners with qualified professionals:

• True North Overhead Doors
• Quality count construction Ltd.
• Durable Decks
• New Earth Waste Services Ltd
• Alpine Exteriors siding and roofing