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

Franklin experiences about 86 freeze-thaw days each year, which breaks down asphalt and wood through repeated expansion and contraction. Aluminum roofing avoids this entirely because its oxide layer does not absorb water and cannot freeze, crack, or split. The 3105-H24 aluminum alloy used in Interlock panels resists dimensional change regardless of temperature swings, so your roof's integrity stays constant through Wisconsin's 88 cm annual snowfall and spring thaws.

Metal roofs naturally shed snow because their smooth, interlocking panels create a frictionless surface that prevents ice dams—a major concern in areas receiving 88 cm of snow annually like Franklin. The four-way interlocking design sheds precipitation efficiently, and because Interlock panels weigh just 0.41 to 0.59 lb/sq ft (the Tile profile is 96% lighter than concrete tile), your existing roof structure supports snow loads without reinforcement, even when accumulation is heaviest.

Aluminum cannot rust because it contains no iron; instead, it forms a self-healing oxide layer that protects the material indefinitely. In Franklin's 861 mm annual rainfall, this matters enormously: steel roofs develop rust stains and eventually perforate, while roofing-grade 3105-H24 aluminum stays structurally sound for decades. The Alunar 70% PVDF fluorocarbon coating—applied to both sides and warranted 30 years against fading—adds extra insurance, making aluminum the only choice that truly ends corrosion worry in wet climates.

Franklin's typical gusts reach 94 km/h, and the four-way interlocking panels are warranted to resist sustained winds up to 120 mph (193 km/h)—far exceeding local conditions. Each panel locks on all four sides to its neighbors, creating a unified system that resists uplift and lateral movement even when snow and ice add weight. This engineering is verified under ICC-ES ESR-1790 (reissued 2025) and means your roof performs reliably during the region's windiest seasons without loose panels or warranty gaps.

Yes—hail occurs across Wisconsin, and Interlock panels carry the UL 2218 Class 4 impact rating, the highest available, with warranty coverage even for perforation from hailstones up to 1.5 inches. This non-combustible aluminum also qualifies for Class A fire ratings, and some insurers offer discounts for roofs rated Class 4 impact and non-combustible. Contact your agent about those savings; the rating is third-party verified and documented, so underwriters recognize the reduced risk.

energy-efficient Interlock colors achieve initial solar reflectance up to 0.55 and thermal emissivity of 0.84, reflecting the heat that asphalt absorbs. With 3095 annual sunshine hours in Franklin, that reflection compounds across the cooling season, reducing attic temperatures and air-conditioning load. The Cool Roof Rating Council rating verifies these properties, and while Wisconsin's climate is cool, every utility reduction matters during summer; the roof pays dividends during high-sun months without sacrificing winter performance.

No structural reinforcement is needed. Interlock's Mediterranean Tile profile weighs just 0.59 lb/sq ft—about 96% lighter than concrete or clay tile—so it installs directly over most existing roofs without compromising structural integrity. This matters in Franklin because you avoid the cost and disruption of reinforcing beams or trusses. The light weight also means faster, simpler installation and lower labor costs compared to traditional tile, while delivering identical visual impact.

Metal roofing requires no regular maintenance—no sealing, no replacing individual shingles, no cleaning algae or moss. With 861 mm of annual rain and 88 cm of snow in Franklin, asphalt shingles need frequent inspections for deterioration and cupping, while wood shakes split and crack from freeze-thaw cycling. Interlock panels are CALGreen-verified for reduced maintenance, and their aluminum construction avoids the wood rot, granule loss, and tar deterioration that plague traditional materials across the region's climate.

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—the failures that plague other roofs in Wisconsin's freeze-thaw climate. The warranty is one-time transferable, giving the next owner 50 years from completion, which significantly boosts resale appeal. The 30-year coating guarantee (ASTM D4214/D2244 tested) ensures color and gloss stability, meaning you're not replacing your roof within a decade like asphalt owners often do.

Aluminum roofing is approximately 95% recyclable at end of life, breaking the tear-off-to-landfill cycle that defines asphalt disposal. Across Franklin and Milwaukee County, millions of pounds of worn asphalt enter landfills annually, while Interlock panels retain value indefinitely and can be reclaimed. The manufacturing process in Delta, BC, uses established aluminum supply chains, and the roof's 50+ year lifespan means far fewer replacements over a century—a genuine lifecycle advantage that CALGreen standards recognize and quantify.

Yes. Franklin averages about 88 cm of snow, 861 mm of rain, roughly 86 freeze–thaw days a year, with peak wind gusts near 94 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.