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

Interlock's aluminum panels shed snow and ice more effectively than asphalt because the smooth, hard surface prevents buildup and the four-way interlocking seams create a seamless barrier. Carthage averages about 98 cm of snow yearly and experiences roughly 81 freeze-thaw days per year—conditions that cause asphalt to crack and curl. Aluminum's oxide layer doesn't degrade in this cycling, and the panels' light weight (Slate installs at just 0.41 lb/sq ft) means no structural strain from snow loads. The standing-seam and shake profiles naturally direct meltwater away, reducing ice-dam formation that plagues heavier roofs.

Interlock panels are made from roofing-grade 3105-H24 and 3003-H24 aluminum alloy (ASTM B209), which contains no iron—the element that rusts. Instead, aluminum develops a thin oxide layer that actually protects the metal underneath and self-heals when scratched. Steel roofs rust; aluminum cannot. With Carthage's roughly 760 mm of annual rainfall and occasional wind gusts reaching 97 km/h that can scrape surfaces, this is a real advantage. The Alunar 70% PVDF fluorocarbon coating applied to both panel sides adds a 30-year fade and chalk warranty (ASTM D4214), so even the finish stays protected for decades.

No. Aluminum expands and contracts with temperature swings, but doesn't crack, curl, or split like asphalt, wood, or concrete tile do under repeated freeze-thaw stress. Carthage endures about 81 freeze-thaw days annually—a significant mechanical stress—yet aluminum's crystalline structure accommodates this movement without degradation. The Guardian warranty explicitly covers splitting and cracking for the original owner for life, then transfers for 50 years to the next owner. Asphalt shingles typically fail within 15–20 years in this climate; Interlock's proven track record since 1998 in similar and harsher regions (Antarctic research stations, coastal salt air) shows the material simply outlasts the conditions.

In almost all cases, no reinforcement is needed. The Mediterranean Tile profile, which replicates the heaviest traditional roofing material, installs at just 0.59 lb/sq ft—about 96% lighter than actual concrete or clay tile. Your home's framing was engineered to carry asphalt shingles (typically 2–4 lb/sq ft), so aluminum is substantially lighter. This also means Interlock can install directly over most existing roofs, saving thousands in removal and disposal costs. Carthage's average snow load (tied to 98 cm annual snowfall) is well within what your current structure already supports; aluminum simply adds negligible weight while providing superior durability than what's currently above your head.

Yes, and some insurers offer discounts. Interlock panels carry a UL 2218 Class 4 impact rating—the highest available—and the warranty even covers perforation from hailstones up to 1.5 inches. This non-combustible aluminum construction often qualifies for lower premiums than asphalt (which dents easily and deteriorates faster in severe weather). Carthage's wind gusts reach 97 km/h, and hail can accompany severe storms. Contact your insurer with the UL 2218 Class 4 rating; many carriers recognize this as equivalent to or superior to traditional roofing and may adjust your rate downward. The durability alone—versus repeated asphalt claims—makes you a lower-risk policyholder.

Interlock's four-way interlocking aluminum panels are warranted to resist wind speeds up to 120 mph (193 km/h) when installed to specification. Carthage's typical gusts reach 97 km/h, well below this rating, meaning your roof will remain secure through normal storms and even severe weather events. The interlocking seams—not nails or screws alone—distribute wind load across the entire panel assembly, preventing the lifting and peeling that weakens asphalt shingles. Installation follows the ICC-ES ESR-1790 evaluation (reissued 2025), the national standard for metal roofing over wood-frame homes. This engineering-backed approach, combined with the panels' lightweight aluminum construction, creates a roof that actually becomes more secure over time as the interlocks settle.

A metal roof is your last roof. While Interlock typically costs 2–3 times more than asphalt upfront, you'll install asphalt 3–4 times in a 50-year span (each cycle runs $8,000–15,000 in removal, disposal, and labor). Interlock's lifetime limited warranty for the original owner—then 50 years transferable—means one installation covers your ownership and adds value for the next owner. No tear-offs, no landfill fees, no mid-season failures during Wisconsin's 81 freeze-thaw days. Over 50 years, you'll spend roughly half what asphalt costs, and your home avoids the labor disruptions and hidden damage (rot, mold) that come with repeated roof removal. The Guardian warranty's non-prorated coverage means you're protected against every failure mode—rusting, rotting, cracking—that asphalt and wood can't avoid.

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, giving the next owner 50 years of coverage from completion. This means you're protected for life; the next homebuyer gets half a century more. No other roofing material offers this combination: asphalt shingles carry 20–25-year warranties but are prorated (you pay more in year 10); slate and tile rarely transfer. Interlock's 95% recyclability also means when the roof eventually outlives the structure, the material goes back to aluminum mills, not a landfill—a 27-year commitment to sustainability built into the guarantee.

Almost none compared to asphalt, wood, or tile. You don't clean gutters of deteriorating shingle fragments; aluminum sheds debris cleanly. No moss or algae growth on the smooth surface. No wood rot, splitting, or replacement of individual shakes (cedar requires re-staining every 10 years). No cracking from Carthage's 81 annual freeze-thaw cycles. Asphalt degrades under UV and the region's 3,073 sunshine hours per year; Interlock's Alunar 70% PVDF coating is warranted 30 years against fade and chalking. A simple annual inspection and gutter cleaning—which you'd do anyway—is sufficient. CALGreen verification confirms reduced maintenance burden, freeing you from the constant upkeep that masonry and wood roofs demand in Wisconsin's wet, cycling climate.

Interlock Metal Roofing has served the Kenosha County region since 2001, bringing over two decades of installation expertise to Carthage and surrounding communities. The company manufactures panels in Delta, BC, and has deployed them from coastal salt-air homes to an Antarctic research station—so your roof benefits from installation knowledge across extreme climates. Local service means your installer understands Carthage's specific snow loads (about 98 cm yearly), freeze-thaw stress (81 days), and wind patterns (gusts to 97 km/h). They're familiar with Wisconsin building codes, can navigate your homeowner's association if needed, and stand behind every job under the ICC-ES ESR-1790 standard. Choosing a local, long-established installer ensures accountability, faster service calls, and someone who'll remember your roof 10 years from now.

Yes. Carthage averages about 98 cm of snow, 760 mm of rain, roughly 81 freeze–thaw days a year, with peak wind gusts near 97 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.