Metal Roofing in Molalla, Oregon — Lifetime Interlock® Aluminum Shingles Installed Locally
Molalla Metal Roofing Experts Installing Lifetime Interlock® Aluminum Shingles Since 1997
Metal Roofing Built for Molalla's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection
Interlock Metal Roofing (PNW) Inc. is Molalla, Oregon’s trusted metal roofing contractor, proudly serving local homeowners since 1997. As the exclusive authorized installer of Interlock® lifetime aluminum roofing systems, we deliver unmatched performance, beauty, and durability tailored for the Pacific Northwest’s unique climate. Our heavy-gauge, fire-resistant roofs are engineered to withstand Molalla’s wet winters, heavy snowfall, and wildfire risks, providing energy-efficient, cool roof solutions that shed snow and resist moss growth. Whether you prefer the timeless look of slate, cedar shingles, shake, Mediterranean tile, or standing seam, every Interlock roof is protected by the advanced Alunar® Coating System and backed by a Lifetime Warranty. Trust Interlock Metal Roofing (PNW) Inc. for expert roof replacement and re-roofing services that keep your Molalla home safe, beautiful, and protected for decades.

Performance you can measure (all climates)
Weather Resistant
Tested to 193+ km/h (120 mph) winds
Durable
Lifetime-Limited, transferable warranty
Rain & Moisture Proof
Repels ~1732 mm of rain a year
Energy Efficient
Reflective cool-roof lowers cooling costs
Snow-Shedding
Built for ~220 cm of snow a year
- Interlocking panel system tested to 193+ km/h (120+ mph) for severe windstorms affecting Molalla and surrounding Clackamas County neighborhoods
- Precision weatherproof seams (profiles: slate, cedar, shake, tile) and mechanical fastening (profile: standing seam) deliver long-term leak protection during wind-driven rain events
- Coated with the Alunar® Coating System (no visible aluminum surface) for durable, weather-resistant color and finish on Molalla roofs
- Class A fire-rated available to address wildfire and ember-risk concerns common in parts of Clackamas County
- UL 2218 Class 4 impact resistance for protection against hail, falling branches, and storm debris during seasonal storms
- Snow-shedding metal panels reduce snow buildup and help prevent ice dams during winter snow loads and freeze–thaw cycles in inland Molalla
- Designed to handle heavy rainfall and atmospheric river events that produce intense runoff across the Willamette Valley and Molalla properties
- Smooth coated surface and pitched panel profiles limit moss and biological growth on moisture-prone roofs around Molalla
- Engineered details reduce potential for corrosion and coating degradation in the damp Pacific Northwest interior climate
- Energy-efficient cool-roof performance lowers roof-surface temperatures and reduces attic heat gain during summer heat waves
- Solar-compatible panel geometry and mounting accommodation for bracket-mounted photovoltaic systems on Molalla homes
- Low-maintenance aluminum construction designed to outlast asphalt shingles in Molalla’s wet, variable-season climate
- Fully recyclable aluminum for homeowners seeking sustainable roofing options in Clackamas County
- Architectural profiles replicate slate, cedar shake, and tile while offering a standing-seam option for modern performance and Molalla curb appeal
- Backed by a Lifetime-Limited transferable warranty to support long-term protection, resale value, and peace of mind for Molalla homeowners
Metal roofing built for Molalla's climate
Averages (10-yr): ~1732 mm rain and 220 cm snow per year, ~3004 sunshine hours, mean 11.5°C, typical daily-max winds ~13 km/h with gusts to 116 km/h, and ~37 freeze–thaw days per year.
- 220 cmavg. snow / year
- 1732 mmavg. rain / year
- 37freeze–thaw days / year
- 116 km/hpeak wind gusts
- 3004 hrsannual sunshine
- 11.5°Cmean temperature
Interlock® aluminum roofing is engineered for these conditions — wind-rated to 193+ km/h (120 mph), UL 2218 Class 4 impact-rated, Class A fire-rated, and built to shed snow and resist ice dams and freeze–thaw cracking, backed by a lifetime limited warranty.
Interlock Metal Roofing (PNW) Inc.
- 1355 NW Everett St, Portland, OR 97209, United States
- Phone 503-966-2948
- Local lines Salem 971-232-4420 · Eugene 541-800-1863
- Sales & Marketing [email protected]
- Toll-Free 1-866-733-5811
- Customer Service [email protected]
- www.OregonMetalRoofing.com
- Also salemmetalroofing.comeugenemetalroofing.comoregoncoastroofing.com
- License OR #130826
- Serving Oregon since 1997 — 28 years
Hours
- Monday9:00 AM – 5:00 PM
- Tuesday9:00 AM – 5:00 PM
- Wednesday9:00 AM – 5:00 PM
- Thursday9:00 AM – 5:00 PM
- Friday9:00 AM – 5:00 PM
- SaturdayClosed
- SundayClosed
Interlock Metal Roofing (PNW) Inc. – Oregon is a trusted metal roofing contractor proudly serving homeowners and businesses across Oregon. With decades of proven roofing experience, Interlock has earned a reputation for exceptional craftsmanship, long-term reliability, and outstanding customer care. As a specialized installer of premium aluminum and standing seam metal roofing systems, Interlock is the exclusive authorized installer of Interlock® lifetime roofing products engineered to perform in Oregon’s diverse climate — from coastal rain and wind to mountain snow and high-desert heat. Built on integrity, professionalism, and superior workmanship, Interlock Metal Roofing (PNW) Inc. has completed thousands of successful roofing installations throughout the region, helping Oregon property owners invest in roofs that are both beautiful and built to last. Our team is known for transparent communication, efficient project execution, and meticulous installation standards, supported by industry-leading materials and strong warranty protection. Interlock’s commitment to excellence is reflected in its dedication to safety, ongoing installer training, and recognition through regional industry awards and customer satisfaction accolades. With highly trained crews and strict adherence to best practices, we deliver durable, energy-efficient roofing solutions that enhance home value and protect against the elements for decades. Whether you need a residential metal roof replacement, a commercial roofing upgrade, or a custom architectural metal roofing system, Interlock Metal Roofing (PNW) Inc. is Oregon’s trusted choice for premium lifetime metal roofing — combining proven expertise, exclusive products, and service you can count on.
Recognition GuildQuality Guildmaster Award — verified customer satisfaction (GuildQuality)
Accredited BBB Accredited A+
Get a Free Metal Roof Estimate in Molalla, Oregon
Interlock® Aluminum Roofing — all-climates performance specs for Molalla, Oregon
| Spec / Rating | Climate / Risk Factor + What It Solves |
|---|---|
| Wind resistance: 120+ mph (193+ kph) | Extreme wind, hurricanes, storm uplift: full interlocking attachment helps prevent blow-offs, edge lifting, and panel loss in high-gust events. |
| Fire rating: Class A (with proper assembly) | Wildfire, embers, radiant heat, chimney sparks: non-combustible roof assembly provides the highest residential fire protection rating. |
| Hail resistance: UL 2218 Class 4 | Hail and impact debris: highest impact classification; resists cracking, splitting, and surface loss common with asphalt under hail strikes. |
| Snow & ice performance: interlocking, shedding profile | Heavy snow, freeze-thaw, ice dams: smooth aluminum sheds snow efficiently and the interlocking design helps block water intrusion when melt-refreeze cycles occur. (Final snow-load capacity depends on roof structure and local code.) |
| Corrosion resistance: aluminum (won’t rust) | Salt air, coastal humidity, wet climates: aluminum naturally resists rust and corrosion, reducing long-term failure risk in marine or high-moisture environments. |
| Heat / UV durability: baked-on coating system | High heat, intense sun, thermal cycling: coatings resist UV breakdown and temperature-swing fatigue, slowing fading and surface degradation. |
| Moss / algae resistance: smooth coated surface | Wet shade, organic growth: low-porosity metal surface gives moss/algae less to grip, reducing staining and maintenance. |
| Material: heavy-gauge aluminum roof profiles (Slate / Shake / Shingle / Tile / Standing Seam) | All-season structural stability: lightweight, dent-resistant metal system stays stable through large hot-cold swings and severe weather. |
| Expected lifespan: 50+ years | Long-term durability across climates: avoids re-roof cycles typical of shorter-life materials, even in high-stress environments. |
| Warranty: Lifetime-Limited, non-prorated + 50-year transferable | Lifetime protection + resale value: guarantees long-term material confidence and transfers to future owners. |
Available Profiles in Molalla, Oregon:
Explore all Interlock® metal roofing systems, or see the Guardian lifetime warranty and independent testing reports.
Recent Interlock® roofs in Molalla, OR
13 completed Interlock® metal roofs in Molalla, OR
Interlock® has completed 13 metal roofs in Molalla, Oregon between 1999–2024, across 5 roof profiles (Shingle, Slate, Cedar Shingle, Standing Seam, Tile). Every marker is a real, anonymized installation completed by a Certified Interlock Installer — explore them on the interactive map and photo grid below, filterable by profile, colour and year of completion.
- 13completed roofs
- 5roof profiles
- 1999–2024years
Open Molalla on the interactive project map →Browse all Interlock® projects in Oregon →See more Interlock® projects →
What our customers are saying:
Everything went according to plan and they did it absolutely perfectly.
They did an excellent job. If we could have afforded the work then we would have gone with Interlock Roofing.
Communication with the customer, prior to the installation. So after the initial sales contract, and before installation.
Nearby service areas in Clackamas County
Interlock® metal roofing is also installed in these communities near Molalla:
Interlock Metal Roofing (PNW) Inc. also services nearby States
Beyond Molalla, our team installs Interlock® metal roofing across:
Metal Roofing FAQs for Homeowners in Molalla
The following metal roofing FAQs are designed specifically for homeowners in Molalla, Oregon. Whether you are building a new home or replacing an existing roof, understanding how roofing materials perform in local weather conditions is essential. From wind and storm protection to fire resistance, hail impact, snow loads, and coastal moisture exposure, Interlock’s Lifetime Aluminum Roofing System is engineered to provide long-term durability, energy efficiency, and peace of mind in Molalla.
How does a metal roof handle Molalla's heavy snow and freeze-thaw cycles?
Metal roofs shed snow and ice far more effectively than asphalt because aluminum's smooth surface prevents ice dams—a critical advantage in Molalla's 220 cm annual snowfall and 37 freeze-thaw days per year. The four-way interlocking panels are warranted to resist 120 mph winds, which matters when snow slides or winter gusts reach 116 km/h. Aluminum won't split or crack from repeated freeze-thaw stress the way wood shakes do, and the panels' light weight (Slate at 0.41 lb/sq ft) means no risk of snow load buckling your roof structure.
Will a metal roof rust in Oregon's wet climate?
No. Aluminum cannot rust because it contains no iron. Instead, the metal forms a thin oxide layer that self-heals when scratched—a permanent advantage in climates like Molalla that receive 1732 mm of rain annually. The Alunar 70% PVDF fluorocarbon coating, applied to both sides of every panel and warranted for 30 years against chalking and fading, provides an extra barrier against moisture. Steel roofing requires constant vigilance; aluminum becomes more durable the longer it weathers.
Is a metal roof worth the higher price in Molalla?
Metal roofing costs more upfront but eliminates the 15-25 year replacement cycle asphalt forces on you. Over 50 years—the transferable warranty term for the next owner—you install one metal roof versus two or three asphalt roofs. In Molalla's wet climate with 1732 mm rain annually, asphalt deteriorates faster; metal roofs rated Class A for fire and warranted against hail up to UL 2218 Class 4 often qualify for insurance discounts. Current financing: no payments and no interest until Spring 2027, or 10% off installation.
Can my older Molalla home support a metal roof without reinforcement?
Yes. The Slate profile weighs just 0.41 lb/sq ft and the Mediterranean Tile approximately 96% lighter than concrete or clay tile—so light that most existing roofs need no structural upgrades. You can install metal roofing over your current shingles, saving tear-off costs and landfill impact. Compare that to slate or real tile, which demand reinforced framing. Molalla receives about 220 cm of snow annually; aluminum's strength-to-weight ratio means it handles that load safely while your home's frame stays unchanged.
What's the hail rating, and could it lower my insurance premiums?
Interlock Metal Roofing achieves UL 2218 Class 4, the highest hail-impact rating available. The warranty even covers perforation from hailstones up to 1.5 inches. Many insurers offer discounts for Class 4 impact protection because your roof won't fail during the severe weather events that strike the Pacific Northwest. In Molalla, where winter gusts reach 116 km/h and weather volatility is common, that protection translates to both durability and potential savings on annual premiums. Ask your insurer about metal roof credits.
Do metal roofs help with cooling costs in summer?
energy-efficient colors with solar reflectance up to 0.55 and thermal emissivity 0.84 reflect heat rather than absorb it—cooling your home during Molalla's 3004 annual sunshine hours. Standard asphalt absorbs that solar energy, raising attic temperatures 50+ degrees above air temperature. Cool Roof Rating Council verification confirms the thermal benefit. You won't see dramatic cooling savings in Oregon's mild 11.5°C average climate, but summer peak loads drop measurably, and reflective coatings extend the life of ventilation systems.
How strong is the wind warranty on a metal roof?
The four-way interlocking aluminum panels are warranted to resist wind speeds up to 120 mph when installed to specification. Molalla's typical daily gusts reach 13 km/h, with extreme gusts to 116 km/h—well within the roof's rated capacity. The interlocking design means wind cannot lift or separate individual panels; each locks to its neighbors. That engineered security matters in the Pacific Northwest, where winter storms bring sustained wind and rapid pressure changes. Standard asphalt shingles often fail in 80+ mph winds; this roof stays intact.
What does the warranty really cover, and how long is it good?
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 with no annual fee or exclusion periods. It's one-time transferable: the next owner receives 50 years from completion. That means if you sell, the new owner gets half a century of protection. Over Molalla's 37 annual freeze-thaw days and 1732 mm rainfall, asphalt roofs fail in 15-25 years and void coverage over time. Aluminum's warranty keeps pace with the roof's actual lifespan.
How long does installation take, and can you install over my existing roof?
Most residential metal roof installations complete in 2-5 days depending on roof size and complexity. Because Interlock panels weigh so little—the Shake profile at 0.58 lb/sq ft—you can install over existing asphalt shingles without removing them, saving thousands in labor and avoiding landfill hauling. Interlock Metal Roofing (PNW) Inc. has served the region since 1997 and handles the full process: inspection, fastening to spec per ESR-1790 code compliance, and final seal. Local expertise matters in Molalla's wet climate with 220 cm snow annually.
How much maintenance does a metal roof actually need?
Virtually none. Unlike asphalt shingles—which require annual inspection, moss treatment, and debris clearing—or wood shakes that need chemical retreatment every 3-5 years, aluminum roofing stays protected by its self-healing oxide layer and 30-year Alunar coating. CALGreen verification confirms reduced maintenance obligations. In Molalla's wet 1732 mm annual rainfall, moss grows on any roof; rinse periodically if desired, but it's optional. No sealant reapplication, no structural repairs from water damage, no algae growth discoloration. This is truly the last roof you'll maintain.
Is a metal roof a good choice for Molalla’s climate?
Yes. Molalla averages about 220 cm of snow, 1732 mm of rain, roughly 37 freeze–thaw days a year, with peak wind gusts near 116 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.













