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

Interlock's four-way interlocking aluminum panels shed snow effectively because the smooth, hard surface resists ice dam formation—a critical advantage in your area's ~84 freeze-thaw days per year. Unlike asphalt or wood, aluminum won't split, crack, or curl as moisture cycles freeze and thaw. The panels weigh only 0.41 lb/sq ft (Slate profile), so accumulated snow loads don't stress your structure, and you can add snow guards to any profile if desired. Your roof will remain watertight through every freeze cycle.

Steel rusts because it contains iron that oxidizes when exposed to moisture; aluminum cannot rust because it contains no iron. Instead, aluminum naturally forms a self-healing oxide layer that protects against corrosion—even more valuable in Sheboygan County, where you receive roughly 739 mm of rain yearly plus 105 cm of snow melt. The Alunar 70% PVDF fluorocarbon coating (applied to both sides) adds a 30-year warranty against chalking and fading, giving you two independent layers of protection. Steel roofing requires paint maintenance; Interlock does not.

Interlock's Guardian Warranty is a lifetime limited, non-prorated material warranty for you as the original owner, covering rusting, rotting, splitting, cracking, curling, and loss of impact resistance—the exact failure modes that plague asphalt and wood in freeze-thaw climates. The warranty transfers once, giving the next owner an additional 50 years from completion. Because aluminum cannot rust and the PVDF coating is warranted 30 years, you're protected through decades of Haven's ~20 mm average annual rainfall and freeze cycles. This is literally the last roof you'll buy.

Over 50 years, Interlock costs less because you never replace it. An asphalt roof typically costs $8,000–$15,000 installed and lasts 15–20 years; metal costs more upfront but lasts your lifetime (original owner) with zero tear-off cycles. Across three asphalt replacements, you'll pay for removal, labor, and landfill fees three times. Interlock's ~95% recyclable aluminum ends that cycle entirely. Add no storm damage claims (UL 2218 Class 4 hail rating, 120 mph wind warranty) and potential insurance discounts, and the math shifts decisively toward metal. Most homeowners recoup the difference before the second asphalt replacement would be due.

Interlock achieves UL 2218 Class 4 impact rating—the highest available—and carries a warranty covering perforation from hailstones up to 1.5 inches. This rating is based on real-world testing and means your roof withstands impacts that destroy asphalt or wood. Many insurers recognize this durability and offer discounts on comprehensive or storm coverage; check with your agent to confirm eligibility in your area. In Wisconsin's variable spring and summer weather, a Class 4 rated roof eliminates the hail-damage claim cycle and the hassle that follows. You also protect your home's interior and contents from leaks other materials cannot prevent.

Interlock's four-way interlocking panels are warranted to resist wind speeds up to 120 mph (193 km/h) when installed to specification—well above Haven's typical gusts, which average around 20 km/h with historical peaks near 99 km/h. The interlocking design transfers wind load across multiple panels so no single fastener bears the full force. Asphalt shingles can lift or tear in sustained winds above 50–60 mph; metal roofs fail only under extreme conditions rarely seen in Sheboygan County. Your insurance may also reward this wind resistance with lower premiums.

No structural reinforcement is needed. Interlock's Slate profile weighs just 0.41 lb/sq ft—about 96% lighter than concrete or clay tile—so it installs directly over most existing asphalt roofs without adding load. Your home's framing was engineered to carry asphalt shingles (~3.5 lb/sq ft); metal is a fraction of that. Even the heavier Tile profile (0.59 lb/sq ft) is negligible by comparison. Installation is straightforward, labor is reduced, and you save the cost of rafter reinforcement that slate or tile would demand. This also means faster installation with less structural disruption to your home.

energy-efficient Interlock colors have thermal emissivity of 0.84 and solar reflectance up to 0.55 (Aged Copper Penny), meaning they reflect heat that dark asphalt absorbs and radiates into your attic. Cool Roof Rating Council certification backs these numbers. In Haven, where you average 3,127 sunshine hours annually, a reflective roof reduces summertime attic temperature by 15–25°F compared to asphalt—lowering cooling costs and extending air-conditioner life. Winter performance is equally valuable: the same emissivity reduces radiant heat loss, so your heating system works less. The coating warranty (30 years, ASTM D4214 / D2244 measured) ensures reflectivity doesn't fade with age.

Installation typically takes 2–5 days depending on roof complexity and size. Interlock installs over most existing asphalt roofs without tear-off, saving labor, disposal cost, and installation time. The light weight (Slate ~0.41 lb/sq ft) means minimal structural stress and faster fastening. A solid deck and underlayment (installed per code, ESR-1790 guidelines) ensure the roof is acoustically indistinguishable from asphalt in rain—metal roofs aren't loud if installed correctly. Your local Interlock installer, serving the region since 2001, can assess your roof and confirm whether an overlay or tear-off is best for your specific home. Most installations are complete within one construction cycle, minimizing disruption.

Virtually none. Asphalt requires annual inspection, algae treatment, and granule replacement; wood requires regular staining, sealing, and moss removal; Interlock requires a simple annual rinse to clear debris—that's it. The Alunar 70% PVDF coating (both sides, 30-year warranty) resists weathering, so no paint touch-ups are needed. Aluminum cannot rot, split, curl, or rust, eliminating the maintenance burden of traditional materials. CALGreen verification confirms reduced maintenance over the roof's life. In Haven's climate—739 mm rain, 105 cm snow, 84 freeze-thaw days—a material that requires zero seasonal care is a profound peace-of-mind advantage. You'll spend that maintenance time and money elsewhere.

Yes. Haven 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.