Metal Roofing in Dieppe, New Brunswick — Lifetime Interlock® Aluminum Shingles Installed Locally

Metal roofs shed snow and ice more reliably than asphalt because the smooth, hard surface prevents adhesion—critical in a region that averages 185 cm of snow annually. Interlock's four-way interlocking panels lock together so tightly that wind-driven snow cannot penetrate the seams. The material's low thermal conductivity means less heat escapes through the roof to melt snow from underneath, reducing ice-dam formation. Optional snow guards can be installed if desired. With roughly 83 freeze-thaw cycles per year in Dieppe, the aluminum's oxide layer—which self-heals when scratched—outperforms steel roofing, which cannot.

Aluminum naturally resists freeze-thaw damage because it contains no iron and cannot rust—the primary failure mode of steel roofing in cold, wet climates. With about 83 freeze-thaw days per year and roughly 991 mm of annual rainfall, Dieppe cycles between wet and frozen conditions constantly. When water enters a crack in asphalt or wood shakes, it expands when frozen, widening the crack. Aluminum panels don't absorb water, so expansion is impossible. The Alunar 70% PVDF coating (warranted 30 years against chalking and fading per ASTM D4214) protects the metal surface itself, keeping the oxide layer intact through decades of temperature swings.

Interlock metal roofing cannot rust because it is made from roofing-grade 3105-H24 and 3003-H24 aluminum alloy (ASTM B209), which contains no iron. Iron is what rusts; aluminum instead forms an oxide layer that is self-healing—when scratched, it seals itself. Steel roofing, by contrast, rusts within years in coastal or salt-air environments. Interlock applies its Alunar 70% PVDF fluorocarbon finish to both sides of every panel, providing extra protection against the salt and moisture typical of the Greater Moncton region. The company has installed roofs from coastal homes to an Antarctic research station, proving durability in the harshest conditions.

Yes. Interlock metal roofing is warranted to resist wind speeds up to 120 mph (193 km/h) when installed to specification—well above Dieppe's typical daily-maximum winds of about 21 km/h and even its occasional gusts to 125 km/h. The four-way interlocking panel design means each panel is locked on all four edges to its neighbors; wind pressure cannot pry them apart. The ICC-ES evaluation report ESR-1790 (reissued 2025 for current IBC/IRC codes) confirms the system's structural compliance. Maritime Metal Roofing Ltd., serving the region since 2007, installs these systems to spec, ensuring your roof meets or exceeds local wind resistance requirements.

Dieppe receives about 991 mm of rain annually, and metal roofing's interlocking four-way panel design creates multiple barriers to water penetration. Each panel overlaps and locks into its neighbors on all sides, directing water downward and outward rather than allowing it to seep under seams. When installed over a solid deck with ice-and-water underlayment (the Maritime Metal Roofing standard), the system is completely sealed. Aluminum itself does not absorb water—unlike wood shakes, which can rot, or asphalt, which degrades when water enters cracks. The Guardian warranty even covers water damage, so you have written peace of mind.

Interlock metal roofing carries a UL 2218 Class 4 impact rating—the highest available—and the warranty even covers perforation from hailstones up to 1.5 inches. Hail damage to asphalt or wood shakes is common and expensive; metal roofing's strength means claims are rare. Many insurance companies recognize this and offer premium discounts for metal roofs; we recommend contacting your carrier to ask. With about 2813 sunshine hours per year in Dieppe, you'll spend most of the year enjoying your durable, damage-resistant roof rather than filing claims or arranging repairs.

No reinforcement is needed. Interlock's Tile profile installs at just 0.59 lb/sq ft—about 96% lighter than concrete or clay tile—and the Shingle at 0.41 lb/sq ft. Most roofs can be installed directly over existing asphalt shingles because the load is so light. Concrete tile, by contrast, weighs roughly 15 lb/sq ft and often requires structural engineering before installation. The four-way interlocking design distributes the minimal weight evenly across the deck, and the ICC-ES report ESR-1790 confirms that no reinforcement is required for standard residential framing. Maritime Metal Roofing Ltd. can assess your specific structure during the free estimate.

Metal roofing requires virtually no maintenance. Unlike asphalt shingles, which need granule replacement and crack repair every 5–10 years, or wood shakes, which must be stained, sealed, and replaced regularly, Interlock aluminum panels do not split, curl, crack, or lose integrity over time. The Alunar 70% PVDF coating is warranted 30 years against chalking and fading, so you won't repaint. The roof sheds debris naturally due to its smooth, hard surface. Dieppe's roughly 991 mm of annual rain keeps the panels clean. CALGreen has verified the system for reduced maintenance, meaning you spend money on other priorities—not on roof upkeep.

Yes. Interlock's energy-efficient colors have initial solar reflectance up to 0.55 (Aged Copper Penny) and thermal emissivity of 0.84, meaning they reflect solar heat rather than absorb it the way dark asphalt does. In Dieppe's roughly 2813 annual sunshine hours, this reflectance reduces the heat load on your home, lowering air-conditioning demand in summer months. The Cool Roof Rating Council rating confirms measurable energy savings. Lighter colors offer the greatest savings; darker colors (like Aged Copper Penny) balance aesthetics with efficiency. Over a 50-year roof life, energy savings compound significantly, improving both comfort and your wallet.

Metal roofing costs more upfront than asphalt but is the last roof you'll buy—a major financial advantage. Asphalt shingles last 15–20 years; you'll replace them 3–4 times in 60 years, each time paying labor, debris removal, and material costs. Interlock's Guardian warranty is lifetime limited and non-prorated for the original owner, with a one-time transferable 50-year term for the next owner. Metal roofing typically lasts 50+ years with zero major repairs. The current regional promotion—interest-free payments for 3 months and savings of at least $2499 on installation—lowers the financial barrier. Over the life of your home, one durable roof costs far less than a cycle of replacements, plus you avoid the environmental cost of landfill asphalt waste.

Yes. Dieppe averages about 185 cm of snow, 991 mm of rain, roughly 83 freeze–thaw days a year, with peak wind gusts near 125 km/h. Interlock® aluminum roofing is wind-rated to 193+ km/h (120 mph), UL 2218 Class 4 impact-rated and Class A fire-rated, and its four-way interlocking panels shed snow and resist ice dams and freeze–thaw cracking — all backed by a lifetime limited, transferable warranty.