Metal Roofing in Argonne, Minnesota — Lifetime Interlock® Aluminum Shingles Installed Locally

Metal roofs shed snow and ice effectively because aluminum expands and contracts smoothly, preventing the ice dam formation that traps water under asphalt shingles. Argonne receives about 95 cm of snow annually across 77 freeze-thaw days—conditions that crack and curl traditional shingles. The four-way interlocking panels create a continuous, rigid surface that resists the repetitive stress of freeze-thaw cycling. Optional snow guards keep snow from sliding suddenly off steeper pitches. Aluminum's non-porous surface also eliminates the moisture absorption that leads to rot and mold under trapped snow.

Aluminum cannot rust because it contains no iron—the element that oxidizes and corrodes. Instead, aluminum develops a protective oxide layer that self-heals when scratched. With 861 mm of rain per year in Argonne, this self-healing property is invaluable; traditional steel rusts aggressively under wet conditions. The Alunar 70% PVDF fluorocarbon coating (warranted 30 years against chalking and fading) is applied to both sides of every panel, adding a second barrier. Even after decades, aluminum remains structurally sound where steel would have degraded.

No. Argonne experiences roughly 77 freeze-thaw days yearly—an environment where asphalt shingles split, wood curls, and concrete tile cracks. Aluminum's crystalline structure and high ductility allow it to expand and contract without cracking or losing its integrity. The roofing-grade 3105-H24 and 3003-H24 aluminum alloy (ASTM B209) was engineered for exactly these stresses. Because the material is non-porous, water doesn't penetrate and refreeze inside cavities. After 25+ years of Minnesota winters, interlocking aluminum panels remain water-tight and uncompromised.

Yes. Argonne experiences typical wind gusts up to 99 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 creates a unified surface where each panel locks to its neighbors on all four sides—not nailed individually at random points. This distributed-load design transfers wind pressure across the entire roof rather than concentrating it at fastener points. The ICC-ES ESR-1790 evaluation confirms structural compliance. Homeowners in high-wind regions have relied on this system since 1998.

Interlock metal roofing carries UL 2218 Class 4 impact rating—the highest available—and the warranty covers perforation from hailstones up to 1.5 inches. Class 4 certification signals superior durability to insurers. Many homeowners in hail-prone areas qualify for insurance discounts because aluminum's hardness resists impact damage that dents or punctures asphalt shingles or damages clay tile. Contact your insurance agent with the UL 2218 Class 4 rating; some carriers offer rate reductions for non-combustible, impact-rated roofing materials. Over a 50-year lifespan, these discounts add meaningful savings.

No structural reinforcement is needed. The Interlock Slate profile installs at approximately 0.41 lb/sq ft and the Mediterranean Tile—which replicates heavy clay or concrete tile—weighs only about 0.59 lb/sq ft, making it roughly 96% lighter than real tile. This extraordinary lightness means most homes can accept the new roof directly over existing asphalt shingles without upgrades. By contrast, concrete tile weighs 10-15 lb/sq ft and often requires costly framing work. Aluminum's strength-to-weight ratio delivers the look of premium materials without structural strain or installation delays.

energy-efficient Interlock colors with high solar reflectance—up to 0.55 for Aged Copper Penny and thermal emissivity of 0.84—reflect summer heat rather than absorbing it the way dark asphalt does. Argonne receives about 3163 hours of sunshine yearly, making reflective coatings a practical energy asset. Cool Roof Rating Council certification means your roof actively lowers cooling demand. In spring and fall, when outdoor temperatures swing daily across the 77 annual freeze-thaw cycles, a reflective roof moderates indoor temperature swings and reduces HVAC cycling. Over decades, the energy savings compound—part of why Interlock panels cut long-term ownership cost.

Interlock metal roofing is built to outlast the house. The Guardian Warranty provides a lifetime limited, non-prorated material warranty to the original owner—covering rusting, rotting, splitting, cracking, curling, and loss of impact resistance. The warranty transfers once to the next owner for 50 years from completion, a major resale advantage. Manufactured since 1998 and installed from coastal salt-air homes to Antarctica, the material itself has proven durability across extreme climates. In Argonne's 861 mm annual rainfall and 95 cm of snow, you can expect the roof to remain functional and water-tight for 50+ years with minimal maintenance.

Interlock aluminum requires far less maintenance than asphalt, wood shake, or ceramic tile. No annual inspections for missing shingles, no moss or algae treatment (aluminum is inhospitable to biological growth), and no resealing of flashings or caulk. Gutters stay cleaner because aluminum doesn't shed granules. CALGreen-verified for reduced maintenance, the roof needs only occasional visual inspection—perhaps after high winds or heavy snow—and cleaning if leaves accumulate. With 861 mm of rain yearly, the self-cleaning aspect saves time. The 30-year coating warranty means the finish won't fade or chalk, unlike asphalt that requires cosmetic intervention within 10-15 years.

Yes. Interlock Metal Roofing has served the Argonne and broader Dakota County region since 2001—over two decades of local experience with Minnesota winters, wind gusts to 99 km/h, and the region's 95 cm annual snowfall. A local installer means faster response times, familiarity with area building codes, and knowledge of how roofs perform in your specific climate. They understand the ICC-ES ESR-1790 compliance pathway, can coordinate with local inspectors, and stand behind workmanship in your community. Contact Interlock Metal Roofing directly for a site visit, material samples, and an estimate tailored to your home's structure and style preferences.

Yes. Argonne averages about 95 cm of snow, 861 mm of rain, roughly 77 freeze–thaw days a year, with peak wind gusts near 99 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.