Metal Roofing in Dee, Oregon — Lifetime Interlock® Aluminum Shingles Installed Locally

Yes. Dee gets about 193 cm of snow yearly and roughly 55 freeze-thaw days, which cycles water into cracks in asphalt shingles and wood. Aluminum expands and contracts uniformly without splitting or curling; it won't trap ice because the smooth, hard surface sheds melt quickly. The four-way interlocking panels stay sealed under load. Snow guards are available if you want to control avalanche shedding. That combination of material durability plus predictable thermal behavior is why we've installed Interlock roofs from coastal homes to Antarctica.

The four-way interlock design is the key. Each panel locks on all four edges—top, bottom, left, right—so water flows downhill and cannot penetrate horizontally across seams, even during heavy rain. Dee averages about 1056 mm yearly, and that volume tests seams constantly. Aluminum panels won't rot, warp, or soak like asphalt or wood fiber. Install a solid deck with ICC-ES approved underlayment per ESR-1790, and you get Class A fire protection and a watertight assembly that handles sustained downpour without pooling or backing up.

Water expands when frozen, cracking asphalt shingles from inside after 55 freeze-thaw cycles per year in Dee. Aluminum is non-porous—water cannot penetrate or freeze within the material. Its oxide layer self-heals when scratched, so micro-damage doesn't propagate into cracks. The Alunar 70% PVDF fluorocarbon coating, warranted 30 years against chalking, also resists UV damage during Dee's 3181 annual sunshine hours. Over two or three winters of freeze-thaw, asphalt degrades visibly; aluminum remains unchanged.

Dee's typical gusts reach 110 km/h, and the warranty covers up to 120 mph (193 km/h) when installed to spec. That extra margin matters. The four-way interlocking panels distribute wind load across the entire roof assembly instead of relying on fasteners alone. Fasteners are spaced and torqued per code, and the interlock mechanically locks each panel to its neighbors. On a conventional roof in a strong gust, wind can peel back shingles; with Interlock, the mechanical bond resists that peeling. That's why we specify wind engineering on every high-wind installation.

No reinforcement needed. The Mediterranean Tile profile, which replicates the heaviest traditional tile look, installs at only 0.59 lb/sq ft—about 96% lighter than concrete or clay tile. Even the Shake profile weighs just 0.58 lb/sq ft. Because Dee's homes were built to carry asphalt (which averages 2–3 lb/sq ft) or heavier materials, aluminum actually reduces the dead load on your frame. You can install Interlock over most existing roofs without structural modification, saving weeks of framing work and cost. That's a direct benefit of aluminum versus traditional tile.

Interlock carries UL 2218 Class 4 impact rating—the highest available—and the warranty even covers perforation from hailstones up to 1.5 inches. In Dee's climate, hail is less frequent than in the high plains, but it does occur. Class 4 rating often qualifies you for insurance discounts (check with your agent); the non-combustible aluminum material and impact resistance appeal to underwriters. If a hailstone does punch through, it's covered under the lifetime limited warranty. That combination of durability, third-party certification, and warranty backup is hard to beat against asphalt, which fails under Class 4 impact.

Aluminum contains no iron—the element that rusts. Instead, it forms a micro-thin oxide layer that blocks corrosion; when scratched, the oxide reforms automatically. Our panels use 3105-H24 and 3003-H24 roofing-grade aluminum alloy per ASTM B209, and the Alunar 70% PVDF fluorocarbon coating is applied to both sides for extra protection in salt-air or damp climates. Dee gets 1056 mm of rain and 193 cm of snow annually, creating constant moisture. Steel roofs, if scratched or cut, expose iron that oxidizes into rust stains and eventual holes. Aluminum simply won't.

Interlock Metal Roofing (PNW) Inc. has served Hood River County and the surrounding region since 1997. The same team that's installed roofs through Dee's heavy snow, rain, and wind cycles knows the local building department, the weather patterns, and how to detail a roof for long-term performance here. They handle the full process—inspection, removal if needed, new deck prep, flashing, and final install per ICC-ES ESR-1790. Currently, we're offering no payments and no interest until Spring 2027, or 10% off your installation price. Call or request a quote online for a site evaluation.

Interlock aluminum roofing requires almost no maintenance—no annual inspections, no patching, no seasonal repairs. Asphalt shingles need inspection after heavy wind or hail, resealing of nail heads, and replacement of damaged or curled shingles, especially after Dee's 55 annual freeze-thaw cycles. Wood shake and cedar shingle roofs demand annual cleaning, algae treatment, and individual shake replacement. Tile requires mortar re-pointing and cracked-tile replacement. Aluminum oxide forms a self-healing protective layer; the Alunar coating is warranted 30 years against chalking and fading. In a wet climate with 1056 mm of rain and 193 cm of snow, that low-maintenance profile saves thousands over 40+ years.

The Guardian warranty is a lifetime limited, non-prorated material warranty for the original owner—covers rusting, rotting, splitting, cracking, curling, and loss of impact resistance. It transfers once, giving the next owner 50 years from completion. In a climate with 55 freeze-thaw cycles per year and 1056 mm of rain, asphalt roofs typically last 15–20 years before curling and cracking accelerate. Aluminum doesn't curl, crack, or rot. Field installations since 1998 show roofs performing flawlessly at 20+ years. The combination of non-corrosive material, 30-year coating warranty, and non-prorated coverage means you're buying your last roof, not planning a replacement in 15 years.

Yes. Dee averages about 193 cm of snow, 1056 mm of rain, roughly 55 freeze–thaw days a year, with peak wind gusts near 110 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.