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

Metal roofs shed snow effectively because of their smooth, hard surface and the thermal conductivity of aluminum, which helps prevent ice dams common in Lexington Township's roughly 95 cm of annual snowfall and 77 freeze-thaw days. Interlock panels' four-way interlocking design and low weight mean no structural reinforcement is needed, and the roof won't sag under repeated seasonal stress. Snow guards can be added if desired. Unlike asphalt, which becomes brittle in repeated freeze-thaw cycles, aluminum's oxide coating stays flexible and self-heals when scratched, so your roof adapts to Minnesota winters rather than degrading through them.

Aluminum cannot rust because it contains no iron—the two metals that corrode are chemically absent. Instead, aluminum naturally forms a transparent oxide layer that protects the underlying metal and self-heals when scratched, so small damages from branches or maintenance don't start corrosion chains. With Lexington Township receiving about 861 mm of annual rain plus snowmelt, this passive protection is a real advantage over steel, which requires constant vigilance. Interlock's roofing-grade 3105-H24 and 3003-H24 aluminum alloy (ASTM B209) is the same material trusted in coastal salt-air environments and Antarctic research stations—far harsher than Minnesota's conditions.

Yes. Interlock's four-way interlocking aluminum panels are warranted to resist wind speeds up to 120 mph when installed to specification, well above the gusts of about 99 km/h typical in Le Sueur County. The interlocking geometry distributes wind load across the entire roof system rather than relying on fastener strength alone, and the lightweight design (about 0.41 to 0.59 lb/sq ft depending on profile) means less uplift force. Combined with a proper deck and fastening pattern, this design has proven in high-wind regions from the coasts to mountain passes. Ice-laden roofs also add weight, but Interlock's engineered panels accommodate seasonal loading without compromise.

Interlock metal roofing achieves UL 2218 Class 4 impact rating—the highest available—and the Guardian Warranty even covers perforation from hailstones up to 1.5 inches. Because aluminum is non-combustible and impact-resistant, many insurers offer discounts; contact your agent with the ICC-ES ESR-1790 evaluation report and UL listing for verification. In a region with occasional severe weather, this combination of durability and insurance recognition provides real financial protection and peace of mind over decades.

No structural reinforcement is needed. Interlock's aluminum panels are extraordinarily light—the Mediterranean Tile profile, for example, installs at roughly 0.59 lb/sq ft, about 96% lighter than concrete or clay tile. This means the roof can often install directly over your existing asphalt shingles without adding structural strain. Even a 2,000 sq ft roof weighs only about 1,200 pounds total, comparable to a few occupants in an attic. This lightness is especially valuable in Minnesota's climate, where repeated snow loads (about 95 cm annually) stress traditional heavy roofing. Aluminum distributes that seasonal weight efficiently without concentrated point loads, protecting your home's frame over decades.

Freeze-thaw cycles—Lexington Township averages about 77 per year—damage materials that absorb water and expand. Aluminum does neither. It's non-porous, so moisture can't penetrate and cause cracking or rot as it does in wood or asphalt. The Alunar 70% PVDF fluorocarbon coating (warranted 30 years against chalking and fading per ASTM D4214 and D2244) remains flexible through temperature swings and doesn't become brittle. Because the material itself is stable across the full Minnesota temperature range and sheds water instantly, repeated freeze-thaw causes no weakening. The result is a roof whose performance is essentially unchanged after 77 cycles each winter—year after year.

Over a 50-year horizon, Interlock metal roofing is typically far less costly than the three to five asphalt roof replacements a Minnesota home requires. Asphalt roofing typically lasts 15–20 years before curling, cracking, and granule loss demand replacement—and each tear-off and haul-away adds labor and disposal costs. Interlock carries the Guardian Warranty: a lifetime limited, non-prorated material warranty for the original owner, transferable for 50 years to the next owner, covering rust, rot, splitting, cracking, curling, and impact resistance loss. No re-roofing means no disruption, no waste to landfills, and no surprise costs. For a homeowner planning to stay put, Interlock is the last roof you'll need to buy.

Yes, Interlock panels can install directly over most existing asphalt roofs—no tear-off required. This saves labor, waste hauling, and time. Installation typically takes a few days to a week depending on roof complexity and team size, compared to a 1–2 week tear-off-and-rebuild cycle for asphalt. Because the panels are lightweight (0.41–0.59 lb/sq ft), crews handle installation efficiently and safely even in Minnesota's variable spring or fall weather. The four-way interlocking design means each panel locks to its neighbors, creating a unified system as the installation progresses. A solid deck and proper underlayment—standard practice—ensure asphalt-level quiet performance.

energy-efficient Interlock colors with thermal emissivity of 0.84 and initial solar reflectance up to 0.55 reflect heat rather than absorbing it like asphalt. In Lexington Township's roughly 3,163 annual sunshine hours, this reflectance reduces cooling load, especially in summer months. The Cool Roof Rating Council certification verifies this performance. While Minnesota summers are moderate, the benefit compounds over time: less air-conditioning use means lower utility bills and reduced strain on HVAC systems. The reflective coating also protects the panels themselves from thermal aging, supporting the 30-year coating warranty. Every climate benefits from lower heat absorption—even temperate ones.

Interlock aluminum requires minimal maintenance—no annual inspections for curling, cracking, or granule loss as asphalt demands, and no moss or rot risks that wood shakes face. Occasional gutter cleaning and debris removal suffice. The Alunar 70% PVDF fluorocarbon coating (both sides of each panel) withstands Minnesota's 861 mm annual rain and variable UV exposure without chalking or fading for 30 years. CALGreen verification confirms reduced maintenance needs. Unlike asphalt, which degrades visibly within a decade, or wood, which requires re-staining and monitoring, metal roofing simply ages without functional decline. This low-touch approach means more time enjoying your home and less spent on ladder work—a genuine quality-of-life improvement over decades of ownership.

Yes. Lexington Township 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.