Metal Roofing in Murray Hill, Wisconsin — Lifetime Interlock® Aluminum Shingles Installed Locally

Yes—aluminum actually thrives in freeze-thaw weather. Unlike asphalt, which hardens and cracks when temperatures swing, aluminum expands and contracts uniformly without degradation. Murray Hill averages about 79 freeze-thaw days per year, making this a genuine strength. The 3105-H24 aluminum alloy (ASTM B209) is specifically chosen for climates with repeated temperature cycling. The Alunar 70% PVDF coating, warranted 30 years against chalking and fading, protects through those cycles without breaking down. Your roof won't develop the splitting, cracking, or curling that plague asphalt in these conditions.

Metal roofing sheds snow better than asphalt, and Interlock panels weigh almost nothing compared to the snow itself. Murray Hill receives about 88 cm of snow annually—the real concern is ice dams on traditional roofs. Interlock's four-way interlocking aluminum panels won't sag under that load; the Shake profile, for example, installs at just 0.58 lb/sq ft. Snow slides off the smooth, slick surface more readily than off asphalt, reducing ice dam formation. You can add snow guards to any profile if you want to control where snow sheds. The lightweight design means no structural reinforcement is needed, even over existing roofs.

Aluminum cannot rust because it contains no iron—that's the basic chemistry. When aluminum is scratched or exposed, it forms an oxide layer that self-heals automatically, protecting the underlying metal. In Milwaukee County's climate, with about 822 mm of rain annually, corrosion resistance matters. Steel roofing will rust over time; Interlock uses roofing-grade 3105-H24 and 3003-H24 aluminum alloy (ASTM B209), plus a Alunar 70% PVDF fluorocarbon coating applied to both sides of every panel. That dual-sided coating is extra insurance in wet climates. You won't deal with rust stains, rust-through, or structural weakening—the material is simply immune to the process.

Interlock panels are warranted to resist wind speeds up to 120 mph when installed to specification—well beyond what Murray Hill typically experiences. Local wind gusts average around 22 km/h daily with recorded gusts to 96 km/h, so you're well within the safety margin. The four-way interlocking system locks each panel to its neighbors, creating a unified, rigid assembly that doesn't lift or flutter. The warranty covers this performance explicitly. By contrast, asphalt shingles can begin to lift and tear in sustained winds above 45 mph. The interlocking design is why metal roofs have earned their reputation for wind durability in coastal and high-elevation installations worldwide.

Interlock carries a UL 2218 Class 4 impact rating—the highest available. The warranty even covers perforation from hailstones up to 1.5 inches. Class 4 is rare; most asphalt and even some metal roofs top out at Class 2 or 3. Wisconsin hail events are real, and some insurers offer premium discounts for Class 4-rated roofs. Contact your agent with the UL 2218 Class 4 rating and ICC-ES evaluation report number ESR-1790 to ask whether your policy qualifies for a reduction. The impact resistance doesn't degrade over time the way some materials do, so you keep that protection for decades. It's one of the few roofing choices that can actually lower your insurance cost.

Yes, if you choose an energy-efficient color. Interlock offers reflective finishes with thermal emissivity up to 0.84 and initial solar reflectance up to 0.55—meaning they bounce heat away rather than absorb it the way asphalt does. Murray Hill receives about 3128 sunshine hours per year, so reflectivity adds up across seasons. Cool Roof Rating Council certification confirms this performance. The benefit shows most in cooling season, but year-round, a reflective metal roof reduces the heat load your air conditioning must handle compared to conventional dark roofing. The lighter colors also stay cooler underfoot if you ever walk the roof for maintenance—a practical detail many homeowners appreciate.

No—metal roofing is so light that nearly every home can accommodate it without reinforcement. The Interlock Tile profile, which replicates heavy clay or concrete tile, installs at roughly 0.59 lb/sq ft and is about 96% lighter than the real thing. That's why it can go over most existing roofs without tearing off the old shingles and without additional framing. A structural engineer may occasionally recommend reinforcement if your home has unusual roof geometry or is very old with compromised framing, but the roofing material itself is not the bottleneck. This is a genuine advantage over slate or tile replicas made from composite materials, which still carry substantial weight and often require structural upgrades.

Very little compared to asphalt, wood, or traditional tile. Asphalt requires regular inspection for missing shingles, shingle granule loss, and weather damage—especially after freeze-thaw cycles like Murray Hill's ~79 per year. Wood roofs need cleaning and treatment to resist moss and rot. Metal roofs need occasional debris clearing and gutter maintenance, just like any roof. Interlock panels won't split, curl, or lose coatings prematurely; the Alunar 70% PVDF finish is CALGreen-verified for reduced maintenance requirements. You're not replacing shingles every 15-20 years or power-washing to prevent algae growth. The design eliminates the tear-off-to-landfill cycle entirely, so you also avoid the environmental cost and labor of roof replacement.

The Guardian lifetime limited warranty covers the original owner for the life of the home, non-prorated on materials—meaning no gradual coverage reduction over time. It covers rusting, rotting, splitting, cracking, curling, and loss of impact resistance. The next owner gets 50 years of coverage from completion, making the roof a significant resale asset. The Alunar 70% PVDF coating is separately warranted 30 years against chalking and fading (ASTM D4214 / D2244 measured), which is double or triple the coating life of typical asphalt. Combined with aluminum's non-corrosive nature and the four-way interlocking system's structural durability, you're looking at a roof that genuinely outlasts most other roofing choices installed today.

Installation typically takes 2-5 days depending on roof size and complexity, though the process varies by existing conditions. One major advantage: Interlock panels install directly over most existing asphalt roofs without tear-off, which saves time and disposal costs. Your home stays weatherproof throughout. The lightweight nature of the material—the Slate profile at just 0.41 lb/sq ft—means faster handling and no heavy equipment needed to crane materials up. Interlock Metal Roofing has served the Milwaukee County region since 2001, so the local installation team understands Wisconsin snow loads, wind exposure, and the best practices for your climate. The installer will walk through the timeline when you get a quote, but most homeowners are back to normal within a week.

Yes. Murray Hill averages about 88 cm of snow, 822 mm of rain, roughly 79 freeze–thaw days a year, with peak wind gusts near 96 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.