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

Metal roofs shed snow and ice more effectively than asphalt because the smooth, interlocking aluminum surface creates minimal friction — snow slides off rather than accumulating. Cedar Grove receives about 94 cm of snow annually, and the four-way interlocking panels prevent water from backing up under the shingles during freeze-thaw cycles, which happen roughly 81 days per year here. The lightweight design (Slate profile at 0.41 lb/sq ft) means your structure carries no added burden from snow load, unlike heavy traditional tile. You can install snow guards if desired to manage runoff safely.

No — aluminum actually thrives in freeze-thaw climates. Because aluminum contains no iron, it cannot rust, even as water freezes and thaws around it roughly 81 times per year in Cedar Grove. The Alunar 70% PVDF coating (warranted 30 years against chalking and fading) protects the metal further, and the self-healing oxide layer seals any microscopic scratches that occur during expansion and contraction. This is why Interlock panels have been installed from coastal salt-air homes to Antarctica — freeze-thaw is a non-issue for this material.

Aluminum simply cannot rust because it contains no iron — the element required for rust to form. Instead, aluminum develops a thin, invisible oxide layer that protects the underlying metal and actually self-heals when scratched. Cedar Grove's 843 mm of annual rainfall and potential salt exposure (Dakota County is near the Twin Cities corridor) mean corrosion resistance matters; aluminum roofing offers what steel roofing cannot. The Alunar coating on both sides of every panel adds another 30-year-warranted layer of fluorocarbon protection, making this roof immune to the rust problems that can plague steel alternatives.

Interlock Metal Roofing is warranted to resist wind speeds up to 120 mph when installed to specification — well above Cedar Grove's typical wind gusts, which average around 18 km/h but occasionally reach 95 km/h. The four-way interlocking aluminum panels lock together so tightly that wind cannot lift individual shingles. For impact protection, the Shake and Slate profiles carry a UL 2218 Class 4 hail rating (the highest available), with coverage even for hailstones up to 1.5 inches. Combined with a professional installation, this design gives you confidence through severe weather.

No structural reinforcement is needed. The Slate profile installs at just 0.41 lb/sq ft, and even the heaviest profile — Mediterranean Tile — weighs only 0.59 lb/sq ft, making it approximately 96% lighter than concrete or clay tile. Most homes can support this weight without any modification. Because Cedar Grove's average annual snow load is manageable (about 94 cm) and spreads across the entire roof, the lightweight aluminum design actually reduces strain on your home's framing compared to traditional materials. You can install Interlock metal roofing directly over your existing roof in most cases, saving on tear-off costs.

Yes — energy-efficient Interlock colors with thermal emissivity of 0.84 and solar reflectance up to 0.55 reflect heat that asphalt absorbs, reducing cooling demand. Cedar Grove enjoys about 3,110 sunshine hours per year, and on warm days, reflective coatings measurably lower the temperature your air conditioner must offset. The Cool Roof Rating Council certification confirms these reflective properties hold over time. Summer cooling savings vary by home size and usage, but homeowners in similar climates report noticeable reductions. Combined with the 30-year coating warranty, you maintain this energy benefit for decades.

Metal roofs require far less maintenance than asphalt, wood, or traditional tile. Interlock's interlocking, non-penetrating fastener system eliminates the leaky fastener holes that plague asphalt shingles. No sealing, recoating, or moss treatment is needed — just occasional debris clearing, which is easier on a smooth metal surface than shingle texture. Cedar Grove's 843 mm annual rainfall and 94 cm of snow will naturally rinse the roof clean. The Alunar coating is CALGreen-verified for reduced maintenance. Over a roof's life, this translates to lower labor costs and fewer repair calls compared to materials that curl, crack, or degrade.

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 — essentially, defects in the product itself. If you sell your home, the warranty transfers once to the next owner for 50 years from completion. This combination of lifetime coverage for you and a half-century transfer period reflects the durability Interlock has proven since 1998 across climates from coastal salt-air to Antarctic research stations. Few roofing products offer comparable peace of mind.

Interlock Metal Roofing is non-combustible aluminum and carries a Class A fire classification (the highest available), meeting ICC-ES evaluation ESR-1790 for the International Building Code. Non-combustible roofing may qualify you for homeowner's insurance discounts because it cannot catch fire or spread flames. Cedar Grove's building codes recognize this through the IBC/IRC standards Interlock meets. While insurance savings vary by carrier and policy, the non-combustible material itself removes fire risk from the equation, which underwriters value. Contact your insurance agent to confirm any premium reductions available in your area.

Yes, over the roof's lifetime. Asphalt typically lasts 15–20 years and requires tear-off and landfill disposal; you may install three asphalt roofs in your lifetime. Interlock's lifetime limited warranty and proven durability since 1998 mean one roof lasts much longer, eliminating the recurring tear-off costs, labor, and environmental impact of replacing asphalt every two decades. Cedar Grove's 81 annual freeze-thaw cycles and 843 mm rainfall accelerate asphalt deterioration; metal roofing resists both. Add potential insurance discounts (Class A fire rating) and energy savings from energy-efficiency colors, and the total cost of ownership favors metal. This is genuinely the last roof you need to buy.

Yes. Cedar Grove 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.