Metal Roofing in St. Martins, New Brunswick — Lifetime Interlock® Aluminum Shingles Installed Locally

Yes — aluminum expands and contracts without cracking, and Interlock panels are designed specifically for regions like yours that see about 85 freeze-thaw days per year. Unlike asphalt shingles that become brittle in cold or wood shakes that can split when ice forms in the grain, roofing-grade 3105-H24 aluminum flexes with temperature swings. The four-way interlocking system also lets each panel move independently, so the entire roof doesn't buckle under stress. Combined with the 30-year Alunar coating warranty against material degradation, you get a roof that stays intact through decades of Maritime winters.

The Shake and Tile profiles shed snow and ice more readily than flat surfaces because their texture and slope break up ice adhesion — especially valuable when you're dealing with roughly 184 cm of snow annually. The smooth aluminum surface also prevents ice from bonding as aggressively as it does to asphalt. The lightweight design means the roof structure carries the load more efficiently than if you installed concrete or clay tile (Interlock's Tile is about 96% lighter), so snow doesn't overstress your framing. For areas prone to gutters ice-damming, optional snow guards are available and install directly into the four-way interlocking system without additional fasteners.

The four-way interlocking male-female panel design creates overlapping water planes that shed rain downslope — water cannot pool or find a path under the seams. Each panel locks into its neighbors on all four sides, so the system relies on gravity and geometry rather than sealant alone. Installation over a solid deck with underlayment (ICC-ES ESR-1790 compliant) channels any water that reaches the substrate safely to the eaves. Compared to asphalt shingles, which rely on tar strips that degrade over time, or wood shake, which can cup and trap water, Interlock's interlocking geometry is passive and permanent — no sealant to fail during Maritime's frequent rainy seasons.

No. Interlock panels are warranted to resist wind up to 120 mph (193 km/h) when installed to specification — well above the typical gusts of about 126 km/h recorded in your region. The four-way interlocking design means each panel is mechanically locked to its neighbors on all sides; wind pressure actually draws the panels tighter together rather than trying to pry them apart. The system was tested and rated under UL 2218 Class 4 impact standards and ICC-ES ESR-1790, both of which include wind uplift verification. Maritime Metal Roofing, your local installer since 2007, knows how to anchor the perimeter and rake edges for coastal conditions.

Aluminum cannot rust because it contains no iron. The moment aluminum is exposed to air, a thin oxide layer forms on the surface — that's aluminum oxide, not rust. If the coating is scratched, this oxide layer continues to heal itself, protecting the metal underneath. That's why Interlock panels have been installed on coastal salt-air homes and even an Antarctic research station; the 3105-H24 aluminum alloy (ASTM B209) and Alunar 70% PVDF coating applied to both sides provide dual protection. Steel roofing requires paint and maintenance to prevent rust; aluminum simply cannot develop the corrosion that degrades other metal roofs over decades in Maritime salt spray.

Interlock carries a UL 2218 Class 4 impact rating — the highest available — and the Guardian Warranty even covers perforation from hailstones up to 1.5 inches. That extreme durability sometimes qualifies homeowners for insurance discounts; contact your provider with the UL 2218 Class 4 documentation. St. Martins receives about 2,825 sunshine hours per year, so severe hail is less frequent than in some regions, but when it does occur, you're protected. Asphalt shingles dent and lose granules permanently under hail; aluminum's non-combustible nature and proven impact resistance mean your roof bounces back without permanent damage or insurance claims.

Interlock requires far less maintenance than asphalt or wood. Asphalt shingles need periodic inspection, granule loss replacement, and re-sealing every 5-7 years; wood shakes require annual cleaning, fungicide treatment, and individual shake replacement. Interlock's aluminum surface sheds dirt and debris naturally, resists algae growth, and needs only occasional gutter cleaning — no coating touch-ups, no granule replacement, no fungicide spraying. The 30-year Alunar coating warranty covers chalking and fading, and the material itself is CALGreen-verified for reduced maintenance. Over 20+ years, the labor and material savings versus asphalt or wood easily justify the higher initial investment.

It's not marketing — the Guardian Warranty is a lifetime limited, non-prorated material warranty for the original owner, plus one-time transfer to the next owner for 50 years. Asphalt shingles last 15-25 years and end up in landfill; during your ownership of the home, you'll likely replace them once or twice. Wood shake lasts 20-30 years but needs maintenance and eventual replacement. Interlock stops the tear-off-to-landfill cycle and remains on your roof for life. Yes, the upfront cost is higher, but spread over 40+ years and zero replacements, the metal roof is cheaper per year — plus you avoid the labor cost and disruption of a mid-life tear-off. The current promotion offers interest-free payments for 3 months and at least $2,499 in savings.

Almost never. Interlock's Tile profile installs at about 0.59 lb/sq ft — roughly 96% lighter than concrete or clay tile — so your existing framing handles it without reinforcement. The Slate profile is similarly lightweight, and even the textured Shake at 0.58 lb/sq ft is negligible compared to asphalt. In fact, Interlock installs directly over most existing roofs, so you avoid the labor cost and structural stress of a tear-off and new substrate. A structural engineer can verify your specific framing if you want certainty, but the ICC-ES ESR-1790 evaluation report documents installation scenarios across a range of building types. This light weight is one reason metal roofing has gone into Antarctic research stations and coastal homes where structure matters.

Yes, significantly. Interlock panels are approximately 95% recyclable — at end of life (which is longer than most materials), the aluminum returns to the supply chain for reuse. Asphalt shingles, by contrast, are tore off every 15-25 years and sent to landfill, where they persist for decades. Over your ownership, you'll divert multiple tons of waste from the landfill by choosing metal. Aluminum also requires less energy to recycle than to produce new aluminum, so the environmental payback continues. With about 1,282 mm of rain annually in St. Martins, you're also avoiding the petroleum-based asphalt products that leach into groundwater during heavy precipitation events. The CALGreen verification acknowledges reduced maintenance and waste — it's a practical choice that aligns environmental benefit with real durability.

Yes. St. Martins averages about 184 cm of snow, 1282 mm of rain, roughly 85 freeze–thaw days a year, with peak wind gusts near 126 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.