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

Metal roofing handles snow better than asphalt because the smooth, hard surface sheds snow load more efficiently, and the four-way interlocking panels won't split or crack under freeze-thaw stress. Howards Grove averages about 105 cm of snow annually with roughly 84 freeze-thaw cycles per year—conditions that break down asphalt shingles and cause wood shake to split. Aluminum's rigid surface and sealed seams resist ice dam formation when properly ventilated, and because the material is non-porous, trapped moisture won't degrade it the way it can compromise asphalt or wood.

Interlock uses roofing-grade 3105-H24 aluminum alloy, which contains no iron—the element that rusts. Instead, aluminum naturally forms a self-healing oxide layer that regenerates when scratched, meaning winter salt spray, road chemicals, and constant moisture exposure won't corrode the panel itself. The Alunar 70% PVDF fluorocarbon coating (applied to both sides) provides an additional 30-year warranty against chalking and fading, so the finish holds up through Howards Grove's 739 mm of annual rain and freeze cycles without the gradual oxidation that weakens steel roofing over time.

No. The aluminum panels themselves won't crack because the material has no grain structure, unlike wood shakes, and doesn't become brittle the way asphalt does after 84 annual freeze-thaw cycles in Howards Grove. The four-way interlocking seams allow microscopic expansion and contraction without stress concentration, and because aluminum conducts heat, ice doesn't build up unevenly on the surface. The Guardian warranty covers cracking, splitting, and curling—conditions that plague traditional roofing in climates with repeated temperature swings like yours.

Yes, and that's the whole point. The Interlock Mediterranean Tile profile weighs roughly 0.59 lb/sq ft—about 96% lighter than real concrete or clay tile—so your existing roof structure handles it without modification. Slate or cedar shake imitations are equally light. A real slate roof requires structural reinforcement that costs tens of thousands; Interlock installs directly over most existing asphalt roofs. In Howards Grove, where annual snow load can stress a structure, using lightweight panels means you get the aesthetic without engineering upgrades.

The four-way interlocking design and fastening system hold the roof down in wind gusts up to 120 mph (193 km/h)—well beyond Howards Grove's typical maximum gusts of about 99 km/h. Each panel locks to its neighbors on all four sides, distributing wind load across the entire roof rather than concentrating stress on individual fasteners. The warranty covers this performance when installed to spec. During storms with sustained 20 km/h winds and occasional gusts, the seams and mechanical locks keep panels seated, unlike asphalt or shake that can lift and tear.

Interlock achieves UL 2218 Class 4 impact rating—the highest available—and the warranty covers perforation from hailstones up to 1.5 inches. That rating matters to insurers: some carriers offer premium discounts for Class 4 roofing because claims are rare. In Howards Grove, where spring and summer storms bring hail risk, having documented impact resistance on file with your policy can lower your annual cost. Unlike asphalt or wood, which dent and delaminate under impact, the dense aluminum panel rebounds, and the coating heals minor damage.

You're buying your last roof. Asphalt lasts 15–25 years in Wisconsin's climate; you'll replace it twice in a typical homeownership span. Interlock carries a lifetime limited material warranty for the original owner, meaning no rust, rot, splitting, cracking, or loss of impact resistance—and it's one-time transferable to the next owner for 50 years from completion. Factor in that you won't reroof, won't deal with weather-damaged shingles after every Howards Grove winter, and won't haul asphalt to a landfill. Over 50 years, the cost-per-year becomes competitive.

Almost none. A solid deck and underlayment make it as quiet as asphalt in rain, and the non-porous aluminum surface doesn't trap moisture, rot, or split the way wood shake does. You won't pressure-wash it, coat it, or replace damaged shingles. Gutters and flashing need the same seasonal cleaning as any roof. The Alunar coating is CALGreen-verified for reduced maintenance, and because the panels lock together with no exposed fasteners, water never pools or runs under seams where debris collects. Over about 105 cm of snow and 739 mm of rain per year, that sealed design saves you years of trouble-shooting.

energy-efficient Interlock colors reflect more heat than asphalt absorbs. Aged Copper Penny achieves initial solar reflectance up to 0.55 and thermal emissivity of 0.84, meaning the roof bounces incoming energy back into the atmosphere rather than conducting it into your attic. With about 3,127 sunshine hours per year in Howards Grove, that reflection adds up month by month. A cooler attic means your air conditioning works less in summer, offsetting some of the installation cost over time. Cool Roof Rating Council certification backs the performance.

Interlock Metal Roofing has served this region since 2001 and maintains expertise in Wisconsin's snow, wind, and freeze-thaw conditions. The company is factory-authorized, understands local building codes, and can install over your existing roof in most cases, which keeps labor time short and disruption minimal. Having a local installer means warranty service, inspections, and repairs happen without delay or outsourcing. Whether your job is a shake profile, slate look, or standing seam, the team knows how to handle Sheboygan County's weather and soil conditions.

Yes. Howards Grove averages about 105 cm of snow, 739 mm of rain, roughly 84 freeze–thaw days a year, with peak wind gusts near 99 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.