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

Interlock's four-way interlocking aluminum panels shed snow and ice effectively because the smooth surface and panel slopes don't trap moisture the way asphalt does. With about 86 cm of snow annually and roughly 87 freeze-thaw days per year, your roof experiences constant expansion and contraction—aluminum's flexibility handles this cycling without cracking or curling. Snow guards are available if you want to control roof-to-ground runoff, and the lightweight design means no structural concerns even with heavy accumulation.

No. Aluminum expands and contracts with temperature swings without degrading or losing structural integrity. Hillside's climate averages 87 freeze-thaw days per year, yet aluminum panels won't split, curl, or develop cracks because the material itself is not porous—water doesn't penetrate it. The roofing-grade 3105-H24 and 3003-H24 aluminum alloy (ASTM B209) resists this cycling indefinitely. In contrast, asphalt and wood materials degrade measurably under the same stress.

Aluminum cannot rust because it contains no iron. Instead, it develops a protective oxide layer that self-heals when scratched—a natural defense that improves over time. Hillside receives about 788 mm of rain annually, yet this moisture actually triggers that oxide layer's regeneration. Interlock panels also carry a Alunar® 70% PVDF fluorocarbon coating (applied to both sides) with a 30-year warranty against chalking and fading. Steel roofing, by contrast, requires constant maintenance to prevent rust in wet climates.

Yes. Interlock carries a UL 2218 Class 4 impact rating—the highest available—and the Guardian Warranty covers perforation from hailstones up to 1.5 inches. This non-combustible aluminum construction often qualifies homeowners for insurance discounts; contact your agent with the product specs. Hillside's typical wind gusts reach 95 km/h, and this same impact durability also protects against wind-driven debris. The combination of proven durability and transferable 50-year coverage appeals to insurers.

Interlock's four-way interlocking system is warranted to resist wind speeds up to 120 mph (193 km/h) when installed to specification. Hillside experiences typical daily-max winds of about 20 km/h with gusts to 95 km/h—well within this rating. The interlocking connection between panels distributes wind load evenly, so no single fastener bears the full force. Even severe gusts won't lift or separate panels once installed correctly, giving you peace of mind during Wisconsin's spring and fall storm seasons.

Most existing roofs support Interlock without reinforcement. The Mediterranean Tile profile installs at just 0.59 lb/sq ft—about 96% lighter than concrete or clay tile—while the Slate and Cedar Shingle profiles are even lighter. Your current roof structure was engineered to handle asphalt shingles; aluminum panels weigh far less, so no costly reinforcement is needed. This also means faster installation and lower labor costs. Only an on-site assessment confirms your specific structure, but lightweight installation is a key advantage Interlock offers Hillside homeowners.

Yes, Interlock installs directly over most existing asphalt or wood roofs—no tear-off required, which saves time and cost. A typical residential installation takes 1-3 days depending on roof size and complexity. Because the panels are extraordinarily light (Shingle at 0.41 lb/sq ft), crews can work efficiently without structural concerns. Interlock Metal Roofing, serving the region since 2001, can discuss your specific timeline during a site visit. The process includes proper underlayment and fastening per ICC-ES ESR-1790 specifications.

Interlock requires virtually no maintenance—no annual inspections, no sealant reapplication, no algae treatment. Asphalt shingles need regular sealing and replacement every 15-20 years; wood shakes invite moss and rot; clay tile cracks and requires individual replacement. Aluminum's Alunar® 70% PVDF coating (30-year warranty) resists chalking and fading through Hillside's 3,093 annual sunshine hours. The CALGreen-verified design reflects this reduced-maintenance advantage. Occasional gutter cleaning is all that's needed—your roof itself stays intact and performs year after year.

The Guardian Warranty is a lifetime limited, non-prorated material warranty for the original owner and covers rusting, rotting, splitting, cracking, curling, and loss of impact resistance. It transfers once to the next owner with a 50-year term from completion. This means no degradation from Wisconsin's 87 annual freeze-thaw days, no rust from 788 mm of rain, and no surprise failures. Interlock has manufactured since 1998 and installed from coastal salt-air homes to an Antarctic research station—real-world proof of durability. You're buying your last roof.

energy-efficient Interlock colors reflect heat rather than absorb it, with initial solar reflectance up to 0.55 and thermal emissivity of 0.84—measured by the Cool Roof Rating Council. This reduces cooling load during Hillside's sunnier months (about 3,093 sunshine hours annually) and lowers air-conditioning costs. The reflective coating also reduces urban heat gain. While Wisconsin winters are cold, a cool metal roof paired with proper attic ventilation and insulation actually performs efficiently year-round. Exact savings depend on your HVAC system and current roof color.

Yes. Hillside averages about 86 cm of snow, 788 mm of rain, roughly 87 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.