Metal Roofing in Malta, Illinois — Lifetime Interlock® Aluminum Shingles Installed Locally

Yes—aluminum expands and contracts with temperature swings, but it won't crack, curl, or split the way asphalt, wood shake, and cedar shingles do over Malta's roughly 81 freeze-thaw days per year. Aluminum's oxide layer self-heals when micro-scratched during thermal cycling, and the material has zero absorbed moisture to turn to ice and fracture it from within. The Alunar PVDF coating (warranted 30 years against degradation) stays flexible through temperature extremes, unlike brittle asphalt that becomes rigid in cold and soft in heat. After 26+ years of installations from coastal Canada to Antarctica, this pattern holds consistently.

Aluminum cannot rust because it contains no iron—the element that corrodes. Instead, it forms a thin, transparent oxide layer that actually protects the metal beneath and self-heals when scratched. With Malta receiving about 853 mm of rain and 71 cm of snow annually, this is a major advantage over steel roofing, which will corrode and stain under the same wet conditions. Interlock uses roofing-grade 3105-H24 and 3003-H24 aluminum alloy, and applies Alunar 70% PVDF fluorocarbon coating to both sides of each panel—extra insurance in moisture-rich climates. The result: your roof will never develop rust stains, rust-through, or the structural decay that water-damaged steel or wood eventually face.

Metal roofing sheds snow and ice efficiently because the smooth, hard surface offers little friction for accumulation, and thermal conductivity means sunlight that would melt snow on dark asphalt also conducts through the metal, reducing ice-dam formation. In Malta's 71 cm annual snowfall, this prevents the heavy wet snow from bonding as it would to asphalt or wood shakes. The four-way interlocking panels (ESR-1790 rated) lock together so tightly that wind-driven snow cannot penetrate seams. Optional snow guards are available if you want to control snow slide direction—a choice you won't have with asphalt. The ultra-light weight (Shingle profile at 0.41 lb/sq ft) means no structural strain even under heavy loading, and installation over your existing roof avoids costly tear-off.

No structural reinforcement is needed. The Interlock Mediterranean Tile profile, for example, is about 96% lighter than concrete or clay tile, weighing only 0.59 lb/sq ft—less than a layer of asphalt shingles. This means installation over your existing roof is standard practice, eliminating the cost and disruption of a tear-off. Older homes and those with modest framing handle metal roofing without modification. The four-way interlocking system distributes loads evenly across the deck, and the lightweight design also means faster installation and easier handling for your installer—reducing labor time and cost compared to heavy tile or slate alternatives.

Yes. Interlock metal roofing is warranted to resist wind speeds up to 120 mph when installed to specification. Malta's typical wind gusts reach about 98 km/h (61 mph), well below this threshold. The four-way interlocking aluminum panels lock together along all edges, preventing uplift and preventing wind from peeling panels back—a failure mode common to asphalt shingles in strong gusts. The rigid aluminum structure also doesn't flex and stress fasteners the way asphalt does, so the roof actually becomes more secure over time rather than weakening. UL 2218 Class 4 impact rating confirms the panels resist hail and wind-driven debris without deformation, meaning your roof maintains its seal and appearance through spring storms that routinely damage conventional roofing.

Interlock metal roofing earns UL 2218 Class 4 impact rating—the highest available—and the warranty even covers perforation from hailstones up to 1.5 inches. Most homeowner's policies offer discounts for Class 4-rated roofing because claims are rare. In testing, the aluminum panels withstand repeated high-velocity impacts without denting, cracking, or losing water-shedding ability, unlike asphalt that fractures, wood that splits, and tile that breaks. Many insurers recognize this durability and adjust premiums accordingly. Contact your agent with the ICC-ES ESR-1790 evaluation report and UL 2218 Class 4 rating—these credentials open the conversation about possible savings that may offset your initial material cost over the roof's lifetime.

Metal roofing requires far less maintenance than asphalt, wood, or tile. No shingles curl, crack, or need replacement; no wood shakes rot or split from Malta's 81 annual freeze-thaw cycles; no tiles fracture or leak around mortar joints. Interlock's CALGreen-verified design confirms reduced maintenance burden. In practice, inspect gutters and fascia twice yearly (standard for any roof), and that's essentially it. The Alunar PVDF coating resists algae and moss growth far better than asphalt, so you won't need pressure-washing or chemical treatments. The aluminum oxide layer doesn't degrade like asphalt binder does in 3,087 annual sunshine hours, so the roof holds appearance and function without re-coating or sealing. Over a 50-year lifespan, the cost difference in labor and materials versus asphalt tear-offs is substantial.

Metal roofing typically costs more upfront than asphalt but costs far less over the roof's lifetime—it is genuinely the last roof you'll buy. An asphalt roof lasts 15–20 years and requires disposal and replacement; Interlock's lifetime limited warranty (non-prorated for the original owner, transferable for 50 years to the next) means you replace it once, not three or four times. Factor in asphalt tear-off labor and landfill fees for each replacement, plus maintenance and eventual re-coating, and the total cost of ownership favors metal roofing decisively. The transferable warranty also adds resale value—the next owner inherits 50 years of protection from completion, not a depleted asphalt roof. Over 50 years and three hypothetical asphalt cycles, the math strongly favors one metal roof installation and zero landfill waste.

Yes, because buyers recognize durability and low maintenance as genuine long-term savings. A roof is typically the second-largest purchase decision in a home sale (after structure), and asphalt declining visibly on a listing signals near-term replacement cost to buyers. Metal roofing—especially profiles like Mediterranean Tile or Cedar Shingle that offer architectural appeal—demonstrates longevity and eliminates a major future expense from the buyer's mental checklist. The transferable 50-year warranty also transfers to the new owner, making your home more attractive financing-wise (some lenders recognize this). In a market where buyers evaluate total cost of ownership alongside upfront price, a maintained metal roof is a genuine selling point, particularly against comparable homes with aging asphalt that will need replacement within years.

Interlock offers five authentic profiles: Slate (traditional angular texture), Cedar Shingle (weathered wood grain and dimension), Shake (rustic split-wood appearance), Mediterranean Tile (curved clay-tile profile), and Standing Seam (modern architectural lines). Each is manufactured from the same durable 3105-H24 aluminum with Alunar 70% PVDF coating, so the difference is purely aesthetic. Slate and Cedar Shingle suit traditional and Cape Cod homes; Shake complements rustic or cottage styles; Mediterranean Tile adds Old World charm to ranch or colonial designs; Standing Seam works with contemporary and mid-century homes. Interlock has installed all five profiles in climates similar to Malta's (71 cm annual snow, 853 mm rain, ~3,087 sunshine hours), and each performs identically against freeze-thaw, moisture, and wind. Choose the style that matches your home's character—performance is guaranteed across all profiles.

Yes. Malta averages about 71 cm of snow, 853 mm of rain, roughly 81 freeze–thaw days a year, with peak wind gusts near 98 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.