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

Interlock panels shed snow naturally because of their smooth, interlocking design—they don't trap moisture like asphalt, so ice dams are far less likely even during Bloomington Ferry's typical 95 cm annual snowfall and 79 freeze-thaw days. The four-way interlocking seams prevent water infiltration, and you can add optional snow guards if you want to control shedding in specific directions. Snow loading won't stress your home; aluminum's weight is negligible compared to the burden of traditional materials, so your structure stays safe without reinforcement.

Aluminum contains no iron, so it cannot chemically rust—period. Instead, a protective oxide layer forms naturally on the surface and actually self-heals when scratched. The Alunar 70% PVDF fluorocarbon finish (applied to both sides, per spec) adds another 30-year warranted barrier against chalk and fade (ASTM D4214), giving you two layers of defense. In Hennepin County's moist climate with 796 mm of annual rain, this dual protection means your roof stays intact without the degradation that corrodes steel.

No. Aluminum expands and contracts slightly, but its grain structure absorbs those movements without cracking, splitting, or curling—problems that plague asphalt and wood in climates with 79 annual freeze-thaw days like Bloomington Ferry. The interlocking seams allow panels to move independently while staying weathertight. Unlike slate or tile, which are brittle and fracture under thermal stress, aluminum flexes, and the Alunar coating won't peel or chip during temperature swings from season to season.

Yes. Interlock panels are warranted to resist wind speeds up to 120 mph, and the four-way mechanical interlock keeps each panel locked to its neighbors, so gusts can't peel them off. Bloomington Ferry's typical wind gusts reach about 94 km/h (58 mph), well below that threshold. The system is tested under ICC-ES ESR-1790 (the building code standard), so your contractor and insurer both know it meets Minnesota structural requirements. That interlocking design is what allows the panels to move as one unified system rather than fail individually.

Interlock's aluminum 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. That non-combustible aluminum and Class 4 rating often qualify homeowners for lower insurance premiums. Some carriers also recognize that metal roofs require fewer repairs overall, which can further reduce your rate. Check with your insurer about discounts; the combination of durability and impact resistance is attractive to underwriters managing Minnesota weather risk.

No reinforcement needed. Interlock's Slate profile weighs about 0.41 lb/sq ft, the Tile profile about 0.59 lb/sq ft—roughly 96% lighter than concrete or clay tile. This means you can often install directly over your existing roof without adding structural support, saving tens of thousands in framing work. Bloomington Ferry homes built for asphalt (which still weighs far more over time due to multiple layers) can easily handle aluminum. The light weight also reduces strain on gutters, fascia, and foundations throughout the roof's 50+ year life.

energy-efficient Interlock colors reflect up to 0.55 of incoming solar radiation and have a thermal emissivity of 0.84, meaning they shed rather than absorb the heat that dark asphalt soaks up. Bloomington Ferry receives about 3,128 hours of sunshine annually, so reflective coatings add up to real cooling savings over time. The Cool Roof Rating Council verifies these properties, so they're not marketing claims—they're measured performance. Lighter colors (like Aged Copper Penny) keep your attic cooler than dark shingles, which lowers air conditioning load during warm months.

Far less than asphalt, wood, or tile. Once installed, Interlock panels don't crack, curl, split, or rot, and the Alunar coating is warranted 30 years against fading and chalking. Moss and algae rarely colonize smooth aluminum, and debris washes away naturally, especially during Bloomington Ferry's 796 mm annual rainfall. You're not replacing shingles, re-caulking gaps, or treating rot. The Guardian Warranty covers all those failure modes for the original owner's lifetime, so your maintenance is essentially limited to occasional gutter cleaning—the same as any roof.

The Guardian Warranty is a lifetime limited, non-prorated material warranty for the original owner, covering rusting, rotting, splitting, cracking, curling, and loss of impact resistance. It's transferable once, giving the next owner 50 years from completion—meaning your roof is protected through multiple ownership cycles. While the metal itself lasts 50+ years (often much longer), the Alunar fluorocarbon finish carries a separate 30-year fade/chalk warranty, so both the panel and coating are covered. This is the only roof you'll likely install in your lifetime.

Interlock Metal Roofing has served Hennepin County and the surrounding region since 2001, bringing over two decades of experience with these specific aluminum systems. They understand Minnesota's snow load, freeze-thaw cycling, and wind patterns because they've installed through them. Your local installer can also ensure the roof is fastened and sealed to spec (critical for the 120 mph wind warranty and watertightness in your 19 km/h average winds and 94 km/h gusts). Working with someone who knows the product and the climate removes guesswork.

Yes. Bloomington Ferry averages about 95 cm of snow, 796 mm of rain, roughly 79 freeze–thaw days a year, with peak wind gusts near 94 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.