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

Interlock metal roofing sheds snow and ice effectively because its smooth, interlocking surface prevents moisture from being trapped underneath. With about 94 cm of snow falling annually in Highland Park and roughly 81 freeze-thaw cycles per year, that smooth finish is critical—it keeps water from refreezing at the eaves where ice dams form on asphalt. The four-way interlocking aluminum panels are warranted to 120 mph winds, so they won't lift under the weight or pressure of shifting snow. Snow guards are optional and depend on your roof pitch and what's below—a contractor will assess whether you need them during installation.

No. Aluminum's crystalline structure and the Alunar 70% PVDF coating system are engineered to flex and survive repeated freeze-thaw cycles without splitting or degrading. Highland Park experiences about 81 freeze-thaw days per year with nearly 850 mm of annual rainfall—exactly the kind of harsh cycling that destroys asphalt and wood shingles over time. The Guardian Warranty explicitly covers cracking, splitting, and curling. The ICC-ES evaluation ESR-1790 confirms this roofing meets IRC standards for freeze-thaw durability. Aluminum actually becomes more resilient in cold climates because its oxide layer self-heals when scratched, preventing water from entering the material.

Aluminum contains no iron—the element that rusts—so corrosion simply cannot occur. Instead, aluminum develops a thin, transparent oxide layer that actually protects the metal underneath. When scratched or abraded by wind-driven debris (common with gusts up to 95 km/h in Highland Park), this oxide layer self-heals automatically. Steel roofing, by contrast, requires constant protective coatings and will eventually rust through, especially in wet climates like yours with 843 mm annual rainfall. The Guardian Warranty covers rusting for the lifetime of the original owner, which is Interlock's confidence in the material itself. Your roof will outlast you without corrosion concerns.

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. This extreme durability often qualifies homeowners for insurance discounts because the roof simply doesn't fail when hail hits. Unlike asphalt shingles or wood shake, which bruise, crack, or lose granules in moderate hail, aluminum panels absorb and shed the impact without permanent damage. With about 3,110 sunshine hours annually in Highland Park, you'll see the roof's flawless surface year-round. Many insurers recognize this and adjust premiums accordingly—ask your agent about metal roofing discounts before installation.

Yes. The four-way interlocking aluminum panels are warranted to withstand wind speeds up to 120 mph when installed to specification. Highland Park's typical gusts reach 95 km/h (about 59 mph), well within the roof's rated capacity. The interlocking system means each panel locks to its neighbors on all four sides—wind cannot pry panels apart or lift them. That same rigid interlocking prevents ice sheets from sliding off unexpectedly; instead, they melt and drain through the panel profile. Installation follows ICC-ES evaluation ESR-1790 standards to ensure fasteners and deck attachment are correct for your location. You won't have to worry about wind peeling back corners or drifting snow creating uneven loads.

Almost certainly not—that's the beauty of aluminum's weight. The Mediterranean Tile profile, which visually replicates heavy clay or concrete tile, installs at only about 0.59 lb/sq ft. That's roughly 96% lighter than the real thing, so no structural reinforcement is needed. You can install Interlock metal roofing directly over most existing roofs without adding bracing, trusses, or supports. By comparison, genuine clay tile weighs in the neighborhood of 15-20 lb/sq ft. With Highland Park's approximately 94 cm of annual snowfall, your structure already handles the weight environment safely. A contractor will inspect your deck before installation, but in the vast majority of cases, you'll avoid the cost and delay of structural upgrades.

Very little. Interlock metal roofing is CALGreen-verified for reduced maintenance, meaning you won't be replacing degraded shingles, clearing moss from asphalt granules, or repairing splits and curls every few years. In Highland Park's climate of 843 mm annual rain and 81 freeze-thaw days, asphalt shingles typically fail within 15-20 years; metal roofing simply sheds water and cycles through freeze-thaw without degrading. The Alunar 70% PVDF coating is warranted against chalking and fading for 30 years, so color stays true. Occasionally, you'll rinse off debris from the profile grooves—that's standard for any roof. The interlocking panels prevent water from ponding, so you won't have ice-dam repairs or rot issues that plague conventional roofs.

Yes, especially on energy-efficient colors. These profiles carry thermal emissivity ratings of 0.84 and initial solar reflectance up to 0.55 (measured on colors like Aged Copper Penny), meaning they reflect a significant portion of the sun's heat rather than absorbing it like asphalt does. In a climate with about 3,110 annual sunshine hours, that reflection adds up across spring, summer, and fall. The Cool Roof Rating Council has rated Interlock's reflective finishes, confirming they reduce roof surface temperature. During Minnesota winters, the reflectance doesn't penalize you—your heating system runs efficiently regardless. Metal roofing simply performs better thermally than absorptive asphalt, lowering demand on air conditioning during warm months.

Yes, when you count total cost over the roof's life. Asphalt costs less upfront but typically lasts 15-20 years in Highland Park's freeze-thaw environment (about 81 cycles annually). You'll pay to tear off and landfill that roof, then buy and install another one. Interlock metal roofing carries a lifetime limited warranty for the original owner—non-prorated, covering rusting, rotting, splitting, cracking, curling, and impact loss. The Guardian Warranty transfers once, giving the next owner 50 years of coverage. You're buying the last roof you'll need. Add in no insurance discounts from metal's durability (UL 2218 Class 4 hail rating), no emergency repairs from failed shingles, and reduced maintenance costs, and metal roofing becomes the economical choice by year 30.

Interlock Metal Roofing, the manufacturer and installer, has been serving the region since 2001. That's over two decades of experience installing these panels on homes across Minnesota's climate range. The company manufactures in Delta, BC, and has installed roofing from coastal salt-air homes to an Antarctic research station, so Highland Park's 843 mm annual rainfall and 94 cm of snow are well within their expertise. When you work with Interlock directly, you're not hiring a general contractor who subcontracts the work—you're working with the people who designed and built the product. They understand the ICC-ES ESR-1790 installation requirements for your specific location and can answer technical questions on the spot, not through a middleman.

Yes. Highland Park averages about 94 cm of snow, 843 mm of rain, roughly 81 freeze–thaw days a year, with peak wind gusts near 95 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.