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

Yes—aluminum actually improves with freeze-thaw stress, not deteriorates. Wales gets roughly 81 freeze-thaw days per year, plus about 88 cm of snow, which is where traditional materials crack and curl. Aluminum's oxide layer doesn't absorb water, so it won't split when frozen. The 3105-H24 alloy (ASTM B209 spec) remains ductile in cold, and the four-way interlocking panels move independently, releasing stress instead of trapping it. The Alunar 70% PVDF coating stays flexible in subzero temperatures—no brittleness.

Metal roofs shed snow and ice faster than asphalt because aluminum conducts heat from inside your home to the surface—no thermal bridging that causes dams. With about 88 cm of annual snow in Wales and gusts to 100 km/h, the lightweight design (Shake profile at 0.58 lb/sq ft) is critical: it doesn't compress snow into ice the way heavy slate or tile does. Four-way interlocking panels and a solid deck with underlayment prevent wind-driven snow infiltration. Optional snow guards hold snow where you want it, then melt it gradually rather than dumping catastrophic loads off corners.

Aluminum cannot rust because it contains no iron—rust is iron oxide, and aluminum doesn't produce it. Instead, aluminum forms a thin, self-healing oxide layer that stops corrosion at its surface. When scratched, that layer reforms on its own. Interlock has installed roofs from coastal salt-air homes to Antarctica since 1998, and the 3105-H24 alloy plus the two-sided Alunar 70% PVDF coating (applied to both sides) are engineered for those extreme conditions. With about 775 mm of rain annually in Wales and seasonal moisture, aluminum outperforms steel roofing by decades.

No reinforcement needed. The Slate and Cedar Shingle profiles install at roughly 0.41 lb/sq ft, and even the Mediterranean Tile—which looks like heavyweight clay or concrete—weighs only about 0.59 lb/sq ft. That's roughly 96% lighter than actual tile, so Interlock installs directly over most existing roofs without engineering upgrades. Your home's framing already supports asphalt shingles plus snow load (about 88 cm annually in Wales), which is heavier than any Interlock profile. The lightweight design also reduces load during high winds—gusts to 100 km/h shed quickly without straining connections.

Interlock holds the highest hail rating available: UL 2218 Class 4, which means it resists 1.75-inch steel-ball impacts at 51 mph without cracking. The Guardian warranty even covers perforation from hailstones up to 1.5 inches. Wisconsin sees spring and summer hail regularly, and the four-way interlocking aluminum panels distribute impact energy across a wide area instead of failing at a single point. Some insurers recognize this durability and offer premium discounts—contact your agent with the UL 2218 Class 4 documentation. Concrete or clay tile often cracks on impact; aluminum simply absorbs and moves with it.

Yes. The four-way interlocking panels are warranted to resist wind speeds up to 120 mph when installed to spec. Wales experiences gusts to 100 km/h (62 mph) regularly, which is well within that rating. Unlike shingles that lift and peel, the interlocks mechanically engage on all four edges, so each panel reinforces its neighbors. Installation over solid decking with proper fastening creates a unified system—wind wants to peel and separate, but the locks prevent it. Test data and real-world installations from hurricane zones confirm this design works; asphalt shingles, by comparison, start failing around 75 mph.

Virtually none. Aluminum won't rot, split, curl, or require recoating. Asphalt shingles deteriorate within 15–20 years and need annual inspection and debris removal. Wood shake absorbs moisture, requiring treatment every 3–5 years, plus regular cleaning to prevent moss and rot in Wales's 81 freeze-thaw days. Interlock's Alunar 70% PVDF coating is warranted 30 years against chalking and fading—measured by ASTM D4214 and D2244 standards—so no repainting. Rain (about 775 mm annually) rinses the surface clean. Occasionally clear gutters and inspect fasteners; that's it. CALGreen certification recognizes reduced maintenance as a sustainability advantage.

Metal roofing costs more upfront than asphalt—typically 2–3 times the material cost—but it's genuinely the last roof you buy. Asphalt lasts 15–20 years and requires tear-off and landfill disposal. A standing-seam or Slate profile lasts 50+ years (50-year transferable warranty on the next owner; lifetime limited on yours), avoiding the strip-and-replace cycle. Over 50 years, labor costs repeat with asphalt three times over. Add avoided ice-dam repairs, no recoating, minimal maintenance, and resale appeal—the total lifetime cost heavily favors metal. In Wales's climate with about 88 cm snow and 81 freeze-thaw days, asphalt suffers faster, shortening its already short life.

Yes—Interlock installs directly over existing roofs in most cases, which saves tear-off costs and labor. The lightweight design (about 0.41–0.59 lb/sq ft depending on profile) means no structural reinforcement. Installation typically takes 2–5 days for a standard residential roof, depending on size, complexity, and crew size. Because Interlock has served the region since 2001, crews are experienced with Wisconsin conditions: they understand flashing for 775 mm annual rainfall, roof pitches suited to 88 cm snow shedding, and high-wind tie-downs rated to 100+ km/h gusts. The process is cleaner than asphalt reroof because you avoid strip-off and daily debris management.

energy-efficient Interlock colors deliver measurable cooling through high solar reflectance (up to 0.55 for Aged Copper Penny) and thermal emissivity of 0.84, rated by the Cool Roof Rating Council. While Wisconsin winters are long (about 3074 sunshine hours per year, mean temperature 9°C), summer cooling still costs money. Reflective aluminum bounces heat away instead of absorbing it the way asphalt does. Your air conditioning runs less on hot days, cutting peak-hour demand and wear. In shoulder seasons (spring and fall), reflectivity reduces heat gain without blocking winter solar gain through windows. The Alunar coating's 30-year warranty ensures reflectance stays consistent—asphalt oxidizes and darkens, reducing reflectivity over time and trapping more heat.

Yes. Wales averages about 88 cm of snow, 775 mm of rain, roughly 81 freeze–thaw days a year, with peak wind gusts near 100 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.