Metal Roofing in Burlington, Ontario

Metal roofs shed snow effectively because aluminum is smooth and slippery, and the four-way interlocking panels create a unified surface that resists ice dam buildup. Burlington receives about 107 cm of snow annually and experiences roughly 88 freeze-thaw days per year—conditions that crack and curl asphalt shingles. Aluminum's oxide layer doesn't degrade in these wet-freeze cycles; it self-heals when scratched. The panels' light weight (Shingle profile at 0.41 lb/sq ft) means no structural stress from accumulated snow, and optional snow guards can be added if you want extra control over slide-off timing.

Aluminum cannot rust because it contains no iron; instead, it develops a thin protective oxide layer that self-heals when scratched—a process that repeats naturally over decades. In Ontario's moist climate, with 717 mm of annual rainfall and frequent freeze-thaw exposure, steel roofs gradually corrode and weaken, while aluminum grows more durable. Interlock's roofing-grade 3105-H24 and 3003-H24 aluminum alloys are ASTM B209 certified, and the Alunar 70% PVDF fluorocarbon finish (applied to both sides) is warranted 30 years against chalking and fading. This double-sided coating is especially valuable in coastal or snow-laden regions where salt spray and moisture exposure accelerate corrosion in lesser materials.

Yes—metal roofs thrive in freeze-thaw climates because aluminum itself doesn't absorb water and therefore doesn't expand or contract with ice formation the way asphalt, wood, or clay do. Burlington's typical freeze-thaw count of 88 days per year (combined with 107 cm of snow) makes material integrity critical; asphalt shingles crack and curl under these stresses, while wood shakes split. The ICC-ES evaluation report ESR-1790 certifies Interlock panels for IBC/IRC code compliance across North American climate zones, and the four-way interlocking system keeps panels locked tight even as surrounding temperatures swing daily. The Guardian warranty covers cracking and curling for the lifetime of the original owner—a promise backed by installations from coastal salt-air homes to Antarctic research stations.

No—in fact, metal roofing is ideal for wind-prone areas. Burlington experiences typical daily-max winds around 19 km/h with gusts reaching 118 km/h, and Interlock panels are warranted to resist wind speeds up to 120 mph (193 km/h) when installed to specification. The four-way interlocking design—where each panel locks into its neighbors on all four sides—creates a unified structure that moves as one unit, distributing wind load evenly rather than relying on individual fastener strength. This makes metal roofs more resilient than asphalt shingles, which can peel or lift when wind catches a corner. The UL 2218 Class 4 impact rating ensures the system also resists hail and debris common in windier Ontario seasons.

Metal roofs actually perform better than most roofing types in hail—Interlock panels carry a UL 2218 Class 4 impact rating, the highest available, and the warranty even covers perforation from hailstones up to 1.5 inches. Class 4 impact resistance often qualifies homeowners for insurance discounts because insurers recognize the material's durability and low replacement frequency. Many Ontario homeowners save 5–15% on premiums when switching to rated metal roofing. Unlike asphalt shingles (which dent and lose granules) or wood shakes (which split), aluminum's light weight and uniform surface absorb impact without permanent deformation. The 30-year coating warranty protects against any fading that impact might cause, so your roof looks consistent long after a hail event.

Almost certainly not—that's one of metal roofing's biggest practical advantages. Interlock's Slate and Cedar Shingle profiles install at just 0.41 lb/sq ft, and even the Mediterranean Tile profile weighs only about 0.59 lb/sq ft, making it roughly 96% lighter than concrete or clay tile. Your home's frame was designed to support asphalt shingles plus snow load; in Burlington, you'll experience about 107 cm of snow annually and wind gusts near 118 km/h, yet the combined weight of a metal roof and accumulated snow is typically less than asphalt alone. This means no reinforcement is needed, and Interlock can install directly over most existing roofs, eliminating tear-off costs and landfill waste. The ICC-ES evaluation ESR-1790 confirms load compliance across code zones.

It's measurable: Interlock's energy-efficient colors have thermal emissivity of 0.84 and initial solar reflectance up to 0.55 (Aged Copper Penny), meaning they reflect heat that asphalt absorbs and re-radiates into your home. The Cool Roof Rating Council rates these finishes, so you can compare them objectively. Burlington averages about 3007 sunshine hours per year, so the cooling benefit compounds over months. While Ontario's winter heating demand is significant (mean temperature 8.9°C), a reflective metal roof reduces air-conditioning load in summer without harming winter performance; heat loss is determined by attic insulation, not roof color. Many homeowners offset some installation cost through utility savings over the roof's 50+ year lifespan, and energy-efficiency certification qualifies you for potential rebates when upgrading from older asphalt.

Metal roofing requires significantly less maintenance than asphalt or wood. Asphalt shingles degrade visibly within 15–20 years and shed granules into gutters; wood shakes split and invite moss in humid climates; both demand regular inspection and repair. Interlock metal roofs are CALGreen-verified for reduced maintenance—aluminum doesn't rot, split, curl, or crack under Burlington's 88 annual freeze-thaw days and 717 mm of rainfall. The Alunar 70% PVDF fluorocarbon finish (30-year warranty) resists chalking and fading without regular coating applications. Your main maintenance is clearing debris from gutters and valleys, the same as any roof. The Guardian warranty covers rusting, rotting, splitting, cracking, and curling for the original owner's lifetime—a scope no asphalt or wood warranty matches—so unexpected repairs are rare.

It's a material-science difference, not marketing: aluminum roofing is approximately 95% recyclable at end of life, while asphalt shingles end the tear-off cycle in landfills, where they persist for decades. A typical asphalt re-roof generates 5–8 tons of waste per home; Interlock panels, manufactured in Delta, BC since 1998, eliminate that waste stream entirely and enter scrap aluminum markets at substantial value. Over a 50-year lifespan (one original owner plus one transfer recipient), you'll install one metal roof versus three asphalt roofs in the same home. In Ontario's humid climate with 707 mm annual rainfall and 107 cm snow, asphalt degradation is faster, triggering more frequent replacements. Choosing metal roofing removes roughly 15–20 tons of landfill waste per home over that period while delivering the same fire rating (Class A non-combustible) and building-envelope performance.

Metal costs more upfront but becomes the last roof you buy, saving money over your home's lifetime. Asphalt shingles cost $8,000–12,000 per installation and last 15–20 years in Ontario's climate; a typical homeowner replaces them twice or three times in 50 years. Metal roofing costs more per square foot but lasts 50+ years with one transferable owner, and the Guardian's non-prorated lifetime limited warranty covers rusting, rotting, splitting, cracking, and curling—meaning no surprise repair costs. Over 50 years, you invest once in metal versus 2.5–3 times in asphalt. Add energy savings (energy-efficiency reflective colors reduce summer cooling), no structural reinforcement needed (installs over existing roofs), and potential insurance discounts (UL 2218 Class 4 rating), and the total cost of ownership favors metal decisively. Current promotions include interest-free payments for 3 months and savings of at least $2499.