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

Interlock's four-way interlocking aluminum panels shed snow and ice efficiently while resisting the damage that freeze-thaw cycling causes to asphalt. Elmwood Park receives about 82 cm of snow annually across roughly 80 freeze-thaw days per year—conditions where asphalt curls and cracks. Aluminum doesn't absorb moisture, so it won't rot or split. Snow guards are available if you want to control sliding. The lightweight design (Shingle profile at 0.41 lb/sq ft) means no structural reinforcement, even with accumulated snow load, and installation over your existing roof is possible.

Aluminum inherently cannot rust because it contains no iron. Interlock uses roofing-grade 3105-H24 and 3003-H24 aluminum alloy (ASTM B209), which forms a self-healing oxide layer when exposed to air. Even if that layer is scratched, it regenerates automatically. The Alunar 70% PVDF fluorocarbon finish—applied to both sides and warranted 30 years against fading—adds a second defense. In Racine County's climate of 835 mm annual rainfall and occasional gusts to 99 km/h, this dual protection means your roof stays protected without the rust perforation or structural decay that can plague steel.

Yes. Interlock panels interlock four ways and are warranted to resist wind speeds up to 120 mph (193 km/h) when installed to specification. Elmwood Park experiences typical daily-max winds around 20 km/h with gusts up to 99 km/h—well within the warranty range. The interlocking design distributes uplift forces across the entire panel network, so fasteners and seams remain secure. This engineering is verified in ICC-ES evaluation report ESR-1790 (reissued 2025 for IBC/IRC compliance). Homeowners in storm-prone areas have trusted Interlock systems since 1998 manufacture in Delta, BC.

Freeze-thaw cycling damages materials that absorb water and expand when frozen. Aluminum does not absorb moisture, so expansion and contraction from Elmwood Park's roughly 80 annual freeze-thaw days pose no risk. Asphalt shingles, by contrast, absorb water and crack under repeated freezing. The Alunar fluorocarbon coating (warranted 30 years) and the non-porous aluminum base remain dimensionally stable year-round. Over 25+ years, this means your roof won't split, curl, or lose impact resistance as the snow cover and temperature swings cycle—a critical advantage in Racine County's seasonal climate.

Interlock achieves UL 2218 Class 4 impact rating—the highest available—and the Guardian Warranty even covers perforation from hailstones up to 1.5 inches. This rating, combined with non-combustible Class A fire classification and 120 mph wind warranty, often qualifies owners for homeowner's insurance discounts. The aluminum's inherent ductility (it deforms without breaking or losing integrity) outperforms brittle materials like asphalt, tile, and slate in hail zones. Document the rating with your insurer; many Elmwood Park homeowners have recovered premium reductions that offset the roof's cost over time.

No structural reinforcement is required. Interlock's lightest profile, the Shingle, installs at just 0.41 lb/sq ft, and even the Mediterranean Tile—replicating heavy clay or concrete tile—weighs only about 0.59 lb/sq ft. That's roughly 96% lighter than the genuine tile it resembles. Most homes can support this load without modification, and Interlock installs directly over existing asphalt roofing, eliminating costly tear-off and disposal. ICC-ES ESR-1790 confirms compliance with building codes for direct installation over wood sheathing and existing roofs. This saves thousands in structural work while keeping your roof out of the landfill.

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 transferable once to the next owner for up to 50 years from completion. Interlock has manufactured panels since 1998; installed roofs have proven durability across climates from coastal salt air to Antarctic research stations. With the 30-year coating warranty on Alunar fluorocarbon (ASTM D4214/D2244 tested) and aluminum's non-corrosive nature, many customers expect 50+ years of service. This is the last roof most homeowners buy.

energy-efficient Interlock colors with thermal emissivity up to 0.84 and solar reflectance up to 0.55 (Aged Copper Penny) reflect heat rather than absorb it. Elmwood Park averages about 3094 sunshine hours per year; even in cooler climates, reflecting rather than absorbing that solar load reduces cooling demand on warm days and shoulder seasons. The Cool Roof Rating Council rating confirms measurable performance. While heating needs dominate Wisconsin winters, the reflective properties also reduce attic heat buildup in summer, lowering ventilation strain. Paired with a solid deck and underlayment (which also quiets rain noise), modern metal roofing performs like asphalt architecturally but reflects what asphalt absorbs.

Minimal. Aluminum is non-porous and won't rot, rust, split, or support moss and algae growth the way asphalt, wood, and tile do. Occasional debris removal and gutter cleaning suffice. The Alunar fluorocarbon finish (30-year warranty) resists fading and chalking under Elmwood Park's 835 mm annual rainfall and 3094 sunshine hours. No resealing, no shingle replacement, no pressure washing to prevent decay. Asphalt requires regular inspections, patching, and eventual full replacement; wood shakes need treatment; tile needs mortar repair. Over a 50-year span, the labor and material savings from a metal roof are substantial—and verified CALGreen-certified for reduced maintenance.

Five profiles replicate traditional high-end materials: Slate (geometric elegance), Cedar Shingle (classic residential charm), Shake (rustic texture), Mediterranean Tile (Old World curves), and Standing Seam (contemporary lines). Each is manufactured in roofing-grade 3105-H24 aluminum with Alunar 70% PVDF fluorocarbon finish on both sides. All five profiles are available in multiple energy-efficiency colors and achieve UL 2218 Class 4 hail rating and 120 mph wind warranty. Choose the aesthetic that suits your Elmwood Park home while gaining aluminum's durability, minimal maintenance, and 50-year transferable warranty—none of which asphalt, wood, or genuine tile can match.