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

No. Aluminum expands and contracts uniformly without cracking, splitting, or curling—the failure modes that plague asphalt and wood shingles through Wisconsin's roughly 85 freeze-thaw days per year. The 3105-H24 aluminum alloy used in Interlock panels is rated for exactly this climate stress. Combined with four-way interlocking seams that accommodate movement and a self-healing oxide layer that prevents corrosion, your roof simply adapts to the cold-warm-cold cycle that degrades other materials season after season.

Interlock's smooth, interlocking panels shed snow and ice far more effectively than textured asphalt. With about 81 cm of snow annually and frequent thaw-freeze events, the slippery aluminum surface prevents snow from adhering and forming ice dams that back water under shingles. Snow guards are available if you want controlled shedding. The panels' lightweight design—Slate at 0.41 lb/sq ft—means no structural upgrade needed even as snow accumulates, unlike slate or tile roofs that require reinforcement before installation.

Aluminum cannot rust because it contains no iron; only iron oxidizes. The Alunar® 70% PVDF coating is applied to both sides and warranted 30 years against chalking and fading (ASTM D4214/D2244). Underneath, a self-healing oxide layer forms naturally on bare aluminum and seals itself when scratched—critical in Rock County where annual rainfall averages 863 mm and freeze-thaw cycles accelerate corrosion of steel alternatives. After 27 years of installations from coastal salt-air homes to ice-bound research stations, Interlock's failure rate from rust is zero.

The math favors aluminum decisively. Asphalt typically lasts 15–20 years and requires tear-off disposal, then reinstallation—a cycle you repeat 3–4 times in 60 years. Interlock's lifetime limited material warranty (non-prorated for the original owner, transferable 50 years from completion) eliminates re-roofing entirely. No landfill fees, no labor to remove old shingles, no weather delays between tear-off and install. Over 60 years, one roof beats three or four. Energy savings from energy-efficiency colors with up to 0.55 initial solar reflectance further offset the upfront cost through lower cooling demand.

Yes—Interlock is warranted to resist wind speeds up to 120 mph (193 km/h) when installed to specification. Rock County's typical gusts reach about 97 km/h, leaving a substantial safety margin. The four-way interlocking panel design locks each piece to its neighbors horizontally and vertically, distributing wind load across the entire system rather than concentrating it on fasteners like shingles do. ICC-ES evaluation ESR-1790 confirms this performance to the current IBC/IRC. Your roof won't lift, flutter, or fail in the spring storms or occasional severe weather this region experiences.

Interlock Shake, Shingle, and Tile profiles carry UL 2218 Class 4 impact rating—the highest available—and the Guardian warranty covers perforation from hailstones up to 1.5 inches. This durability often qualifies homeowners for insurance discounts; contact your agent with the UL 2218 Class 4 rating. In contrast, asphalt shingles typically rate Class 3 or lower and degrade further after impact. With the freeze-thaw cycles and hail risk inherent to Wisconsin, a non-degrading, high-impact material reduces both claim frequency and long-term premium exposure.

Virtually none. Aluminum doesn't rot, split, curl, or crack like wood shakes or asphalt shingles, and it won't moss or mildew like tile in damp climates. The Alunar® coating is rated for 30 years of color and gloss retention, so repainting isn't required. Routine gutter cleaning and the occasional debris removal (leaves after 3079 annual sunshine hours and seasonal growth) are the only tasks. Concrete or clay tile demands regular inspection, mortar repair, and eventual replacement—costs that don't apply to metal. CALGreen verification confirms reduced maintenance obligations.

Installation over existing shingles is possible in most cases—one reason the lightweight design matters. Interlock's Slate, Cedar Shingle, Shake, Tile, and Standing Seam profiles install directly over your current roof without structural reinforcement, saving labor and disposal fees. Our local installer, serving the region since 2001, assesses your deck condition and confirms the best approach during the on-site estimate. Removing old shingles is sometimes necessary for safety or deck repair, but the option to overlay—completed in days rather than weeks—significantly shortens timeline and cost, especially important during Wisconsin's brief weather windows.

The Guardian Warranty is a non-prorated lifetime limited material warranty for the original owner, covering rusting, rotting, splitting, cracking, curling, and loss of impact resistance. If you sell, the warranty transfers once to the next owner for 50 years from completion—a tangible asset that increases resale appeal. The non-prorated term means claims are honored at no cost regardless of age, not gradually reduced over time. Combined with the Alunar® 30-year coating warranty against fading and chalking, and UL 2218 Class 4 impact durability, your roof is protected through and beyond typical Wisconsin ownership timelines.

Five profiles are available: Slate (0.41 lb/sq ft), Cedar Shingle, Shake, Mediterranean Tile (~96% lighter than concrete or clay tile), and Standing Seam. Each replicates traditional architectural materials in aluminum, with color options including Aged Copper Penny and energy-efficient finishes. Slate suits farmhouses and colonials; Cedar Shingle and Shake appeal to craftsman or cottage aesthetics; Tile echoes Mediterranean or Spanish Revival homes; Standing Seam fits modern and industrial designs. All profiles carry the same ICC-ES ESR-1790 approval, four-way interlocking durability, and non-prorated lifetime warranty, so your choice is purely aesthetic.

Yes. Newark averages about 81 cm of snow, 863 mm of rain, roughly 85 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.