Metal Roofing in St. Felix, Prince Edward Island — Lifetime Interlock® Aluminum Shingles Installed Locally

Metal roofs shed snow gradually, not dangerously, because the smooth surface and thermal properties work together. St. Felix averages about 202 cm of snow annually, and Interlock's lightweight aluminum panels (the Shingle at just 0.41 lb/sq ft) won't sag or trap moisture that causes ice dams on heavier asphalt. The solid deck and underlayment installation provide the same thermal resistance as conventional roofing, so snow melts at the eaves at a natural rate. You can order optional snow guards to control shedding if you prefer—they're simple brackets that work with any profile.

Aluminum actually thrives in freeze-thaw cycles because it has no moisture absorption and expands minimally compared to wood or asphalt. At 71 annual freeze-thaw days, your roof faces constant expansion stress, but aluminum's oxide layer self-heals when scratched and the Alunar 70% PVDF fluorocarbon coating (both sides, 30-year warranty) resists cracking and peeling that plague painted steel or aged asphalt. The four-way interlocking panels accommodate slight movement without separation, so the membrane stays sealed through repeated temperature swings that would split or curl conventional shingles.

Aluminum cannot rust because it contains no iron—rusting requires iron oxide, which aluminum simply cannot form. Steel roofing, even painted, will eventually rust through salt air, especially in West PEI's maritime conditions. Interlock uses roofing-grade 3105-H24 and 3003-H24 aluminum alloy (ASTM B209) with the Alunar coating applied to both sides, giving extra protection in salt-laden air. The product has been installed in coastal homes from British Columbia to Antarctic research stations, so salt air is exactly what the engineering addresses. Once the coating eventually ages, aluminum's self-healing oxide layer takes over—there is no rust pit growth.

Yes—Interlock panels are warranted to resist sustained winds up to 120 mph (193 km/h), well above St. Felix's typical gusts around 140 km/h. The four-way interlocking system means each panel locks to its neighbors on all sides, so wind pressure is distributed across the entire roof assembly rather than peeling shingles from the edges inward. The ICC-ES evaluation report ESR-1790 (reissued 2025 for IBC/IRC code) confirms this wind rating under the building code your area follows. With proper installation by a trained contractor like Maritime Metal Roofing, gust season won't keep you awake at night.

Interlock achieves UL 2218 Class 4, the highest impact rating available, and the Guardian Warranty even covers perforation from hailstones up to 1.5 inches. Class 4 means the roof survives impacts that would dent asphalt or crack tile. Many insurance carriers recognize this durability and offer discounts on metal roofing premiums—you'll want to contact your agent with the UL 2218 Class 4 rating and the product's ICC-ES report to inquire. Over 71 freeze-thaw days per year, your roof is absorbing thermal shock constantly; hail impact resistance becomes real protection, not a spec sheet claim.

No structural reinforcement is needed. The Interlock Tile profile weighs about 0.59 lb/sq ft—roughly 96% lighter than concrete or clay tile—so it installs directly over existing roof decks on most homes. Even the heaviest profile, the Shake at 0.58 lb/sq ft, is lighter than many asphalt compositions. Your home's framing was built to carry asphalt shingles, which typically weigh 2–3 lb/sq ft; a metal retrofit actually reduces the dead load. Maritime Metal Roofing can assess your specific deck during the site visit, but in almost all cases, the aluminum panels go straight over your existing structure or old shingles without any additional support work.

Metal roofing costs more upfront than asphalt, but the Guardian Warranty delivers the last roof you'll install. Asphalt lasts 15–20 years and requires tear-off (disposal cost), removal labor, and reinstallation every two decades. Interlock's lifetime limited, non-prorated material warranty for the original owner covers rust, rot, splitting, cracking, curling, and impact loss—and transfers once (giving the next owner 50 years from completion). Over 50 years, asphalt needs 2–3 complete replacements; metal is one installation. The current regional promotion includes interest-free payments for 3 months and at least $2,499 off, making the math tighter. Factor in no maintenance, zero landfill cycles, and you're comparing a one-time cost against generations of disposal.

Yes—Interlock offers five profiles: Slate, Cedar Shingle, Shake, Standing Seam, and Mediterranean Tile. Each replicates traditional textures in aluminum without the weight, maintenance, or brittleness of the real material. The Cedar Shingle and Shake profiles echo hand-split wood with three-dimensional depth and shadow lines; the Tile profile captures the curved, overlapping look of clay without the 96% weight penalty that would require structural reinforcement. Slate gives you the angular, fitted appearance of real slate. All are finished in the same Alunar 70% PVDF coating that protects against the salt air and 2,884 sunshine hours per year that fade conventional materials. Choose based on your home's character—the durability underneath is identical.

energy-efficient colors reflect rather than absorb solar heat, with thermal emissivity rated at 0.84 and initial solar reflectance up to 0.55 (Aged Copper Penny is a popular cool choice). This matters in a climate like St. Felix with 2,884 annual sunshine hours—a reflective metal roof bounces that radiant energy away, lowering cooling loads in summer. In winter, the solid deck and underlayment provide the same thermal resistance as conventional roofing, so you don't lose heating performance. The Cool Roof Rating Council rating means the energy benefit is third-party verified, not marketing. Over the roof's life, the reduced cooling demand on hot days adds up to real savings, especially as asphalt absorbs and re-radiates heat that metal deflects.

Virtually none beyond standard gutter cleaning. Unlike asphalt shingles (which lose granules and curl in freeze-thaw cycles), wood shakes (which rot and split), or clay tile (which cracks), Interlock aluminum is CALGreen-verified for reduced maintenance. The Alunar 70% PVDF finish resists chalking and fading for 30 years (ASTM D4214/D2244 measured), so no painting or recoating. Aluminum doesn't rust, rot, absorb moisture, or harbor algae. In salt air, rinse the roof annually if heavy salt spray accumulates—a garden hose does it. That's the extent of it. With 202 cm of snow and 854 mm of rain per year, the aluminum sheds water and ice without trapping moisture between shingles, so no hidden decay develops like it can under asphalt or wood.