Metal Roofing in Salem, Oregon

Aluminum contains no iron, so it physically cannot rust. Instead, it develops a thin oxide layer that actually heals itself when scratched. Our panels use roofing-grade 3105-H24 and 3003-H24 aluminum alloy, plus a Alunar 70% PVDF fluorocarbon coating on both sides for extra durability in Salem's 1329 mm annual rainfall. This dual protection means your roof stays corrosion-free for decades, not years.

Our Mediterranean Tile profile weighs about 0.59 lb per square foot—roughly 96% lighter than concrete or clay tile. That's the difference between a feather and a brick. For Salem homes, this matters: no expensive structural reinforcement needed, and installation typically happens over your existing roof without tearing off asphalt first. The Shake profile runs 0.58 lb/sq ft; even our Cedar Shingle at 0.41 lb/sq ft outperforms heavy materials.

Salem sees typical gusts reaching 111 km/h, and our four-way interlocking aluminum panels are warranted to resist wind speeds up to 120 mph (193 km/h) when installed to spec. The interlocking design means panels lock together mechanically, spreading wind load across the entire roof rather than letting individual pieces lift. During the 39 freeze-thaw days Salem experiences yearly, that locked system stays tight while asphalt becomes brittle and lifts.

No. Metal roofing is engineered to shed water, not hold it. Our four-way interlocking system creates channels that direct rain downward; there's no horizontal surface for water to pool or penetrate. Salem's heavy rainfall actually highlights a metal roof's advantage: while asphalt absorbs water and degrades over decades, aluminum simply sheds it. Proper underlayment and installation seal any micro-gaps—the same way commercial metal roofs have protected buildings for over a century.

Our panels carry a UL 2218 Class 4 impact rating—the highest available—and the warranty even covers perforation from hailstones up to 1.5 inches. Many insurers recognize this durability and offer premium discounts. Class 4 means the product withstands impact from the largest hail most areas see. Salem's climate doesn't feature extreme hail, but the superior impact resistance still translates to lower claims risk in the eyes of insurance companies, sometimes offsetting your premium.

Yes. Our energy-efficient colors reflect solar heat rather than absorb it, with thermal emissivity of 0.84 and initial solar reflectance up to 0.55. Salem averages about 3054 sunshine hours per year, and that reflection adds up. Asphalt shingles absorb heat and transfer it into your attic; a reflective metal roof keeps that energy outside. The Cool Roof Rating Council has verified our performance—you'll see lower air-conditioning loads on hot days.

Virtually none compared to asphalt, wood, or clay tile. Our aluminum panels won't rot, split, curl, or lose impact resistance over time. No annual inspections for missing shingles or moss growth. The Alunar 70% PVDF coating is warranted 30 years against chalking and fading, so you're not repainting. Salem's 39 annual freeze-thaw cycles cause expansion-contraction on asphalt and wood; aluminum flexes without damage. Most owners simply inspect gutters and clear debris—that's it.

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. It's one-time transferable, giving the next owner 50 years of coverage from completion. That's genuinely different from prorated warranties that drop value yearly. For Salem homeowners, this means if you sell, the metal roof becomes a major selling point backed by real protection the new owner can count on.

Yes. Our aluminum panels are non-combustible and available with a Class A fire classification—the highest rating. They meet ICC-ES evaluation report ESR-1790 (IBC/IRC, reissued 2025) and are CALGreen-verified. In Salem's mixed-density neighborhoods, a non-combustible roof is a genuine asset during wildfire season. Unlike asphalt shingles or wood shakes, aluminum won't ignite or spread flame, which matters for property protection and often appeals to insurers and home-buyers alike.

Interlock Metal Roofing (PNW) Inc. has served the Salem region since 1997—over 25 years of local experience. We're here, we know Marion County's climate, and we stand behind the work. Right now, we're offering no payments and no interest until Spring 2027, or 10% off metal roof installation. The panels themselves are manufactured in Delta, BC since 1998 using roofing-grade aluminum alloy, so you're getting a proven product installed by people who understand Salem's 1329 mm rainfall, 27 cm snow, and 111 km/h gusts.