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

Yes—aluminum actually thrives in freeze-thaw conditions. Jefferson experiences about 87 freeze-thaw days per year, which degrades asphalt and causes wood to split and curl, but aluminum's oxide layer self-heals when scratched and cannot rust or rot. The 3105-H24 / 3003-H24 alloy used in every Interlock panel maintains its structural integrity across unlimited thermal cycles. Combined with the four-way interlocking design and a 30-year Alunar coating warranty, your roof handles Wisconsin's seasonal extremes without the degradation that shortens asphalt lifespans.

Interlock metal roofing sheds snow effectively because its smooth, hard surface doesn't absorb moisture or ice the way asphalt does. Jefferson averages about 86 cm of snow annually, and the lightweight panels—Slate at 0.41 lb/sq ft, Shake at 0.58—eliminate the structural strain that heavy slate or concrete tile creates. Snow guards are available if you want to control runoff, but the four-way interlocking seams prevent water infiltration even when ice dams form. No reinforcement needed; your existing roof structure supports the load without modification.

Aluminum cannot rust because it contains no iron—the element that corrodes in moisture. Instead, a microscopic oxide layer forms naturally on the surface and self-heals when scratched, providing continuous protection even as Wisconsin experiences about 788 mm of annual rainfall and seasonal humidity swings. Steel roofing requires protective coatings that wear away; aluminum's chemistry is the protection. The Alunar 70% PVDF fluorocarbon finish (both sides of every panel) adds a 30-year color and fade warranty, but the substrate itself is corrosion-proof for the life of your home.

Over a 40+ year lifespan, metal roofing becomes the cheaper choice. Asphalt shingles last 15–20 years and require tear-off, disposal, and reinstallation—a cycle that repeats three times before a metal roof finishes its first warranty term. Interlock's Guardian Warranty is lifetime limited, non-prorated for the original owner and transferable to the next owner for 50 years from installation. In Jefferson's 87 annual freeze-thaw days and 86 cm snowfall, asphalt degrades faster. When you account for labor, landfill fees, and the uninterrupted protection aluminum delivers, metal roofing is genuinely the last roof you'll buy.

Interlock metal roofing earns UL 2218 Class 4 impact rating—the highest available—and the Guardian Warranty covers perforation from hailstones up to 1.5 inches. Most Wisconsin homeowners qualify for insurance discounts on metal roofing because the impact resistance is documented and proven. The non-combustible aluminum with Class A fire rating available also appeals to insurers. When you provide your insurer with the ICC-ES ESR-1790 evaluation report and UL listing, many offer premium reductions that offset part of the installation cost within the first few years.

Yes. Jefferson's typical wind gusts reach about 95 km/h, and Interlock metal roofing is warranted to resist wind speeds up to 120 mph (193 km/h) when installed to specification. The four-way interlocking panel design creates a unified surface that doesn't lift or separate in high winds the way individual asphalt shingles can. Each panel locks to its neighbors at all four edges, distributing wind load across the entire roof rather than stressing fasteners. This tested durability is backed in writing by the Guardian Warranty, giving you confidence through Wisconsin's spring and fall storm seasons.

No—one of metal roofing's practical advantages is that it installs over most existing roofs. Because Interlock panels weigh so little (Shake at 0.58 lb/sq ft, Tile at 0.59), they're about 96% lighter than concrete or clay tile, eliminating the structural reinforcement that traditional masonry materials require. Your current asphalt shingles provide an excellent solid deck for the new installation, reducing labor and disposal costs. Interlock's local installer, serving the region since 2001, can assess your roof's condition and advise whether removal is needed—but in most Jefferson homes, a direct overlay saves time and money.

Very little. Asphalt shingles require inspection after every storm and patching or replacement; wood shakes need treatment for rot and splitting; concrete tile is brittle and expensive to repair. Interlock aluminum roofing is CALGreen-verified for reduced maintenance because aluminum doesn't rot, split, curl, or lose impact resistance over time. Occasional gutter cleaning keeps debris from accumulating, but the roof itself requires no sealing, coating renewal, or seasonal treatment. In Jefferson's climate with 3,093 annual sunshine hours and freeze-thaw cycling that degrades other materials, aluminum's durability means lower long-term ownership costs.

energy-efficient Interlock colors reflect heat that asphalt absorbs, lowering cooling loads in warm months. Aged Copper Penny and similar finishes achieve initial solar reflectance up to 0.55 and thermal emissivity of 0.84, rated by the Cool Roof Rating Council. In Jefferson's 3,093 annual sunshine hours and mean temperature of 9.2°C, this matters most during spring and fall when solar gain influences indoor comfort. The reflective coating extends the life of your HVAC system by reducing peak demand, and many utility companies offer rebates for Cool Roof installations. It's a small efficiency gain that accumulates over decades.

Interlock Metal Roofing has served the Jefferson County region since 2001 and maintains expertise in local installation codes and weather conditions. The company manufactures every panel in Delta, BC, using ICC-ES ESR-1790 approved specifications, and its installer network understands Wisconsin's freeze-thaw demands, snow loads of about 86 cm annually, and gust speeds to 95 km/h. When you work with the local installer, you get direct communication, warranty support, and the benefit of 20+ years of regional experience—not a distant contractor learning your climate for the first time.

Yes. Jefferson 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.