Metal Roofing in East Side, Wisconsin — Lifetime Interlock® Aluminum Shingles Installed Locally

Yes. Aluminum's oxide layer naturally self-heals when scratched, so seasonal freeze-thaw cycling—East Side experiences about 79 freeze-thaw days per year—does not degrade the material. Unlike wood shakes that split or asphalt that cracks when moisture infiltrates and expands, the 3105-H24 aluminum alloy (ASTM B209) stays dimensionally stable through countless temperature swings. The Alunar 70% PVDF coating, warranted 30 years against fading and chalking, protects against moisture intrusion before it reaches the substrate. That's why Interlock panels installed in saltwater and mountain climates perform identically to installations here.

Metal roofing sheds snow and ice far more effectively than asphalt because its smooth, interlocked surface provides no adhesion points where ice dams form. East Side receives about 98 cm of snow annually, but the four-way interlocking panels—especially Standing Seam and Slate profiles—allow snow to slide safely off before it accumulates into dam-forming weight. The extraordinarily light weight (Slate at 0.41 lb/sq ft, Shake at 0.58) means your structure bears minimal load even during heavy snow events. Optional snow guards can be installed if you prefer slower snow management. This eliminates the freeze-thaw damage asphalt roofs suffer when ice backs up under shingles.

Yes. Interlock panels are warranted to resist wind speeds up to 120 mph (193 km/h) when installed to specification. East Side's typical wind gusts reach about 98 km/h, well within rated capacity. The four-way interlocking design—each panel locks on all four edges to its neighbors—distributes wind loads across the entire roof system rather than stressing individual fasteners. This is verified by ICC-ES evaluation ESR-1790 (reissued 2025), which covers installation under IBC and IRC standards. The interlock geometry is why Interlock panels maintain structural integrity in coastal gales and mountain windstorms; gusts here pose no engineering concern.

Aluminum cannot rust because it contains no iron—the element that oxidizes in the presence of moisture and oxygen. Instead, aluminum develops a microscopic oxide layer that acts as a permanent, self-healing barrier. When scratched or damaged, the aluminum immediately re-oxidizes, sealing the wound. In contrast, steel roofing (which is iron-based) rusts at scratch points and corrodes from inside, eventually perforating. East Side's 723 mm of annual rainfall and 79 freeze-thaw days create ideal conditions for steel rust; aluminum thrives in exactly these conditions. The roofing-grade 3105-H24 alloy, paired with the Alunar 70% PVDF two-sided coating, means no rust stains, no structural failure, and no replacement in your lifetime or your buyer's.

Yes on both counts. Interlock panels earn UL 2218 Class 4 impact rating—the highest available—and the warranty even covers perforation from hailstones up to 1.5 inches. This exceeds typical Wisconsin hail events. The four-way interlocking design absorbs and distributes impact energy across multiple panels rather than concentrating it on a single fastener point. Many insurers recognize this durability and offer premium discounts for Class 4 metal roofs compared to asphalt or slate. Contact your agent with the UL 2218 Class 4 certification to explore available discounts. The combination of extreme impact resistance and light weight (eliminating structural upgrade costs) often makes aluminum metal roofing cheaper to insure than traditional materials.

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. It's one-time transferable, providing the next owner 50 years of protection from completion. This is unusual in roofing: most asphalt warranties are prorated after year 10 and don't transfer. Unlike slate or wood shake (which degrade over decades), aluminum's oxide layer doesn't fatigue, and the Alunar 70% PVDF coating is warranted 30 years against fading. You're not buying a roof you'll replace twice in a lifetime; you're buying your last roof. The transferability also raises resale appeal—the next buyer inherits five decades of material protection.

Yes. The Interlock Mediterranean Tile profile—which visually mimics heavy clay or concrete tile—installs at about 0.59 lb/sq ft, making it roughly 96% lighter than the actual material it resembles. Your existing roof structure bears almost no additional load. This means no costly structural upgrades, no temporary support walls during installation, and no months of disruption. The Slate and Cedar Shingle profiles are even lighter. East Side homes built from the 1960s onward can accommodate aluminum metal roofing directly over existing asphalt or felt without engineering review in most cases. By contrast, adding slate or concrete tile requires reinforcement beams and significantly raises installation costs. Interlock's weight advantage transforms a full tear-off job into an overlay, saving thousands and reducing landfill waste.

Installation typically takes 3–5 days for a standard residential roof, depending on roof complexity and weather. Unlike asphalt tear-offs, Interlock panels often install directly over your existing roof—a process called overlay installation. The solid deck beneath the new panels (whether plywood or your old roof) is secured with a moisture barrier and underlayment, matching the installation standard for asphalt. This approach cuts labor costs, eliminates weeks of disruption, avoids landfill disposal fees, and preserves any existing insulation. Tear-off installation is also available if your old roof is compromised. Interlock Metal Roofing has served the region since 2001 and coordinates timing around East Side's weather windows. Spring and early fall (before the 98 cm snow season) offer optimal scheduling. A local consultation confirms whether overlay or tear-off best suits your roof's condition.

Metal roofing requires significantly less maintenance than asphalt or traditional tile. Asphalt shingles degrade from UV exposure (East Side receives about 3,114 hours of sunshine annually), suffer wind damage, and need spot repairs or full replacement within 15–20 years. Wood shakes crack and rot from freeze-thaw cycling (79 days per year here). Concrete or clay tile breaks under impact and requires expert repairs. Interlock aluminum panels need only occasional gutter cleaning and annual inspection—no sealing, no restaining, no moss treatment. The solid underlayment eliminates water infiltration that plagues asphalt over decades. The Alunar 70% PVDF coating prevents chalking and fading for 30 years, so no re-coating is required. This low-maintenance profile appeals to homeowners tired of roof babysitting and reduces lifetime ownership costs dramatically.

Yes, through reflective coatings and thermal properties. Select Interlock color options—such as Aged Copper Penny—are energy-efficient with initial solar reflectance up to 0.55 and thermal emissivity of 0.84. This means the roof reflects solar heat that asphalt absorbs and re-radiates into your attic. Cool Roof Rating Council certification confirms these values. East Side's 3,114 annual sunshine hours represent significant cooling load, especially from June through August. By lowering attic temperature, a reflective metal roof reduces air-conditioning runtime and energy bills—often by 10–15% compared to dark asphalt. The long thermal payback period compounds over the roof's 50+ year life. Even in winter, the reflective coating doesn't reduce the benefit of solar heat gain through south-facing windows. Energy efficiency is a tangible operating-cost advantage of aluminum roofing in any climate.

Yes. East Side averages about 98 cm of snow, 723 mm of rain, roughly 79 freeze–thaw days a year, with peak wind gusts near 98 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.