Metal Roofing in Hales Corners, Wisconsin — Lifetime Interlock® Aluminum Shingles Installed Locally

Aluminum panels shed snow and ice more reliably than asphalt because the smooth, hard surface prevents water from wicking into the material like shingles do. Hales Corners averages about 88 cm of snow yearly across roughly 79 freeze-thaw cycles, so managing ice dam formation matters. The four-way interlocking design creates a unified skin that resists water intrusion even when snow melts and refreezes, and you can add snow guards if your roof slopes toward occupied areas. Unlike asphalt, which becomes brittle in freeze-thaw stress, aluminum's 3105-H24 alloy maintains flexibility through temperature swings.

No. Freeze-thaw cycles cannot damage the aluminum itself because the material expands and contracts uniformly—it has no grain structure that cracks under stress like slate, cedar, or concrete tile. With approximately 79 freeze-thaw days per year in Hales Corners, this durability matters significantly. The Alunar 70% PVDF fluorocarbon coating is warranted 30 years against chalking and fading even through decades of thermal cycling. The fastening system is engineered for expansion, and the four-way interlock keeps water out before it ever reaches the substrate, so ice expansion within the roof assembly never becomes an issue.

Aluminum cannot rust because it contains no iron—it's chemically impossible. Instead, aluminum naturally forms a thin oxide layer that protects it and self-heals when scratched, so even in Milwaukee County's annual 822 mm of rainfall, the base material remains unchanged. The Alunar coating adds a second protective barrier rated for both sides of the panel, which is especially important in salt-air regions. Your roof will not corrode, pit, or degrade from moisture exposure the way steel roofs can, and the warranty explicitly covers rusting (as well as rotting, splitting, and cracking), guaranteeing the material will outlast any maintenance-related failure mode.

The four-way interlocking aluminum panels lock together to create a unified system that resists the 96 km/h gusts typical of Hales Corners, plus exceptional peak winds. The roof is warranted to resist wind speeds up to 120 mph (193 km/h) when installed to specification, which far exceeds worst-case local conditions. Unlike asphalt shingles—which can be torn away one at a time—or slate tiles, which shift individually under pressure, the interlocked panels move as one, transferring wind load through the entire assembly to the structure. This unified approach has proven itself in Antarctica research stations and coastal salt-air homes where extreme weather is constant, not occasional.

No structural reinforcement is necessary. The Mediterranean Tile profile installs at approximately 0.59 lb/sq ft—about 96% lighter than concrete or clay tile—so you avoid expensive framing upgrades. Even the heavier Shake profile (0.58 lb/sq ft) is negligible compared to traditional masonry. Most existing roofs can carry this load without modification, which means you can install over your current structure in many cases, saving demolition costs and landfill waste. The ICC-ES evaluation report ESR-1790 confirms code compliance without structural prerequisites, and installers can assess your specific framing in minutes to confirm suitability.

The roof carries a UL 2218 Class 4 impact rating—the highest available—and the warranty even covers perforation from hailstones up to 1.5 inches. In Wisconsin's typical spring and summer storms, this rating provides absolute protection. Some insurers recognize this durability and offer premium reductions; you should contact your agent with the UL 2218 Class 4 specification and the 50-year transferable warranty to discuss your policy. The combination of non-combustibility (Class A fire rating available), impact resistance, and longevity sometimes qualifies you for multi-peril discounts that recover installation costs over the roof's life.

Yes. energy-efficient colors have thermal emissivity of 0.84 and initial solar reflectance up to 0.55, meaning they reflect heat that asphalt absorbs. Hales Corners receives about 3,128 sunshine hours annually, so summer cooling load is real even in Wisconsin. The Cool Roof Rating Council rating confirms this reflective advantage. On warm days, a reflective metal roof stays measurably cooler than dark asphalt, reducing strain on your air conditioning system. This is passive cooling—no moving parts, no maintenance—and it compounds over decades. You'll see the largest benefit in south- and west-facing sections of the roof, where solar gain is most intense.

The Guardian warranty is a lifetime limited, non-prorated material warranty for you—covering rusting, rotting, splitting, cracking, curling, and loss of impact resistance from day one. If you sell the home, the warranty transfers once, giving the next owner 50 years from completion, which makes the roof a permanent selling asset. Manufactured since 1998, thousands of Interlock roofs installed in the early 2000s are still performing without failure, and the Alunar coating is independently warranted 30 years against chalking and fading. This is not a prorated plan where coverage shrinks over time; you're protected for life.

Over the roof's life, yes. Asphalt shingles need replacement every 15–20 years, so in 50 years you'll buy the roof 2–3 times plus repairs and re-roofing labor. A metal roof has one lifetime installation, no tear-off costs, and no landfill fees. You avoid the asphalt replacement cycle entirely and end up spending less in total cost of ownership. Additionally, the transferable 50-year warranty increases your home's value because the next owner inherits a roof that doesn't need attention, making your home more competitive at sale. Many homeowners find that a single professional installation and one roof for life actually costs less than the cumulative expense of asphalt replacements.

Minimal. Unlike asphalt, which cracks and curls under freeze-thaw stress, or wood shake, which rots with moisture, aluminum is immune to rot, splitting, and curling. You don't need to power-wash it, apply sealants, or replace degraded sections. Annual gutter cleaning—which you'd do anyway—is usually the only task. Heavy snow can be swept off if you're concerned about load, but the roof handles typical accumulation without intervention. CALGreen verification confirms reduced maintenance requirements. With 822 mm of annual rainfall and about 79 freeze-thaw days, asphalt shingles would demand regular inspection and repair; your metal roof simply sheds water and weathering without complaint.

Yes. Hales Corners 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.