Metal Roofing in Dunthorpe, Oregon — Lifetime Interlock® Aluminum Shingles Installed Locally
Dunthorpe Metal Roofing Experts Installing Lifetime Interlock® Aluminum Shingles Since 1997
What do Interlock customers in Oregon say?
Interlock has 764 published customer reviews from Oregon, covering installations reviewed between 1999 and 2026. They average 4.7 out of 5, with 634 collected through independent GuildQuality surveys. Interlock® Slate is the most frequently installed system in the region, appearing in 328 of these projects. Across the surveys that scored individual categories, salesperson punctuality rates highest at 4.9 out of 5.
Metal Roofing Built for Dunthorpe's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection
Interlock Metal Roofing (PNW) Inc. is Dunthorpe, Oregon’s trusted local metal roofing contractor, proudly serving homeowners since 1997. As the exclusive authorized installer of Interlock® Lifetime Aluminum Roofing Systems, we deliver unmatched performance, beauty, and durability tailored to the unique Pacific Northwest climate. Our heavy-gauge, fire-resistant roofs are engineered to withstand Dunthorpe’s wet winters, frequent rain, and occasional snow, providing superior snow-shedding and long-term protection against moss, rot, and wildfire risks. Choose from slate, cedar shingles, shake, Mediterranean tile, or standing seam styles—all with the strength of metal and the timeless look you love. Every Interlock roof features the advanced Alunar® Coating System for maximum energy efficiency and is backed by a Lifetime Warranty, making us the top choice for roof replacement and re-roofing in Dunthorpe, Oregon.
Performance you can measure (all climates)
Weather Resistant
Tested to 193+ km/h (120 mph) winds
Durable
Lifetime-Limited, transferable warranty
Energy Efficient
Reflective cool-roof lowers cooling costs
Rain & Moisture Proof
Repels ~1468 mm of rain a year
Corrosion Resistant
Aluminum won’t rust or corrode
- Authorized installer of Interlock® Lifetime Aluminum Roofing Systems serving Dunthorpe homeowners and properties across Multnomah County
- Aluminum panels coated with the Alunar® Coating System (no visible aluminum surface) for long-term finish durability
- Precision weatherproof seams (profiles: slate, cedar, shake, tile) and mechanical fastening (profile: standing seam) plus advanced waterproof installation provide long-term leak protection during wind-driven rain events
- Tested to 193+ km/h (120+ mph) for severe windstorms and uplift events affecting Multnomah County roofs
- Snow-shedding panel geometry reduces buildup and helps prevent ice dams during occasional snow loads and freeze–thaw cycles
- Built to withstand rapid seasonal transitions, persistent moisture, and cool, damp roof conditions common in Dunthorpe
- Class A fire-rated available to improve ember resistance during regional dry spells and elevated wildfire risk
- UL 2218 Class 4 impact resistance for protection against hail, falling branches, and storm debris
- Energy-efficient cool roof performance reduces heat gain during summer heat waves and improves attic comfort
- Solar-compatible roofing engineered to accept modern bracket-mounted photovoltaic systems without compromising weatherproofing
- Sustainable, fully recyclable aluminum with low upkeep — designed to outlast asphalt shingles in high-moisture Oregon climates
- Backed by a Lifetime‑Limited transferable warranty to protect long-term investment and resale value
- Atmospheric rivers: engineered to shed extreme, prolonged rainfall events that periodically impact western Oregon watersheds
- Coastal salt air: Alunar® coating resists corrosion from occasional riverborne or maritime aerosols despite Dunthorpe’s inland location along the Willamette
- Moss: smooth Alunar finish and steep-shedding profiles limit moss and lichen buildup on shaded, damp Dunthorpe roofs
Metal roofing built for Dunthorpe's climate
Averages (10-yr): ~1468 mm rain and 48 cm snow per year, ~2957 sunshine hours, mean 11.5°C, typical daily-max winds ~15 km/h with gusts to 116 km/h, and ~36 freeze–thaw days per year.
- 48 cmavg. snow / year
- 1468 mmavg. rain / year
- 36freeze–thaw days / year
- 116 km/hpeak wind gusts
- 2957 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 Dunthorpe, Oregon
Interlock® Aluminum Roofing — all-climates performance specs for Dunthorpe, 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 Dunthorpe, Oregon:
Explore all Interlock® metal roofing systems, or see the Guardian lifetime warranty and independent testing reports.
Recent Interlock® roofs across Oregon
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Deep Charcoal Cedar ShingleCloverdale, OR
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Deep Charcoal Cedar ShingleCloverdale, OR
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Completed Interlock® metal roofs near Dunthorpe, OR
Every marker is a real, anonymized Interlock® aluminum roof completed by a Certified Interlock Installer. Explore verified Interlock® installations near Dunthorpe, Oregon, United States on the interactive project map and photo grid — filter by roof profile (Slate, Cedar Shingle, Shake, Mediterranean Tile, Standing Seam, Solid Copper), colour and year of completion.
Open Dunthorpe on the interactive project map →Browse all Interlock® projects in Oregon →See more Interlock® projects →
What our customers are saying:
We were so impressed with Interlock Roofing. The entire process was great from sales, to installation to clean up. They made the process easy even when we had a few curveballs for them. They worked with us wonderfully the entire time and our roof looks amazing. The installation team was so nice and respectful. Our roof is beautiful.
From start to finish the folks at Interlock were amazing. After our home was damaged in last years wildfires in rural Oregon; we made the decision to replace the roof and siding in nonflammable materials. Our roof is beautiful. I’ve already had so many compliments on how great it looks and I’ll sleep better knowing my home is safe from exterior fire. The two workers were so polite and did an impeccable cleanup! I would highly recommend Interlock Industries.Sincerely, Sharon Shepard Positive: Responsiveness, Punctuality, Quality, Professionalism, Value Services: Attic venting, Roof installation
Love our new roof! Looks great and will last a lifetime. Install was fast, done in less than 2 days. The crew was courteous, professional and took the time to clean up the property before they left. Highly recommend.
We are very pleased with our new Aluminum roof, it looks great. The installing crew was topnotch! Very professional, friendly, on time daily, and cleaned the area daily as well. I will recommend Interlock to anyone who needs a new roof. Thank you Interlock!
INCREDIBLE experience from start to finish. From the moment we met with Damon and Mike, through the contract and purchase process, into scheduling and installation - we have had an amazing experience. The product and service are ABSOLUTELY worth the investment. We LOVE our new roof and give Interlocking Roof our highest recommendation. Positive Responsiveness, Punctuality, Quality, Professionalism, Value ServicesRoof installation
I was amazed at the size of the roofing materials and their parts. Their roofing materials do “InterLock” to become a roof where water cannot find a way through it. The crew was very professional in their manner and expert in removing the old roofing material, then installing the new. They answered all my questions so I could completely understand their answers. The crew really impressed me by how quickly they completed the job.We had them replace some exposed beams in our alcove. The workmanship was great.The crew also did a great job of policing up our yard after they had finished the roofing. I recommend InterLock roofing to anyone who needs a new roof. Positive, Responsiveness, Punctuality, Quality, Professionalism, Value, Services: Roof installation
Positive: Professionalism, Punctuality, Quality, Responsiveness, Value Interlock gave us step by step on what to expect during the whole process of buying and installing our roof! Our energy bill is down, and the roof looks amazing! They fixed our back Desk, so there are no more leaks! The installers were fast and professional. They cleaned up everything before leaving at the end. I was very pleased with the whole process! Thank you, Interlock! Services: Roof installation, Attic venting
Our 18 year house needed something. A local roofer suggested a$ 5 K, roof treatment with yearly treatment of $1000. And a roof replacement with shingles at 60K. We looked into Interlock. I was impressed with the product and the absence of middlemen between installation. And quality if the product. The investment was significantly higher but we were impressed and felt it would be the best choice. The crew was polite and professional. They cleaned up every day as promised As you can see from the picture the roof is beautiful Positive: Professionalism, Punctuality, Quality, Responsiveness, Value Service: Roof installation
I absolutely love my new roof. Damon my sales rep was fantastic and the installers were the height of professionalism3/8/2021So after the snow and ice storm last month my metal roof still looks great and for the first time in 22 years I didn't have to worry about losing shingles in the storm. Positive Responsiveness, Punctuality, Quality, Professionalism, Value
Deciding to switch to an aluminum roof was a significant decision for us, and honestly, the selection process was a bit overwhelming. There are so many styles and finishes available, and it took us quite a while to finally make our choice. If you're considering aluminum, be prepared to invest time in understanding your options.The installation process itself also took longer than we initially anticipated, especially compared to the asphalt shingle replacements we've had done in the past. This is something to factor into your timeline if you're working with specific deadlines.However, despite the longer decision and installation periods, we are extremely pleased with the final result. The aluminum roof looks fantastic and has significantly improved the curb appeal of our home. It truly turned out nice.We were also impressed with the attention to detail shown by Interlock Metal Roofing. They used what appeared to be the correct mounting hardware, ensuring a secure and professional installation. Additionally, they didn't hesitate to replace any damaged or weakened boards as needed, which gave us peace of mind regarding the roof's long-term integrity.Overall, while the decision-making and installation processes were more involved than expected, the quality of the finished product and the professionalism of Interlock Metal Roofing made it a worthwhile investment. We would recommend them to others considering an aluminum roof, with the caveat that they should be prepared for a longer timeline.
We are quite pleased with our new Interlock roof. It adds to the character of our house and looks great from any direction. Also, neighbors have extended their compliments. The experience, from start to finish was handled smoothly and professionally. When the project began, Art and Daniel worked hard, putting in long hours and cleaning the job site each day. Also, they were personable, responded to our questions, and accommodated a couple of requests as the job went along. In short, the roof looks great, and now that the fall rains have begun, we are especially pleased to have the job completed for the approaching winter. Nothing comes to mind. Nothing at this time.
I had a "slate style" metal roof installed by Interlock Roofing and these guys are great! They were so polite and fast, they got my whole roof done in just two days and cleaned up the site perfectly. I would highly recommend them. Positive, Professionalism, Services: Roof installation
Nearby service areas in Multnomah County
Interlock® metal roofing is also installed in these communities near Dunthorpe:
Interlock Metal Roofing (PNW) Inc. also services nearby States
Beyond Dunthorpe, our team installs Interlock® metal roofing across:
Metal Roofing FAQs for Homeowners in Dunthorpe
The following metal roofing FAQs are designed specifically for homeowners in Dunthorpe, 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 Dunthorpe.
Does metal roofing handle Dunthorpe's snow and ice buildup?
Yes—Interlock's four-way interlocking panels and smooth profiles shed snow efficiently, reducing ice dam risk in your area's climate of about 48 cm annual snow and 36 freeze-thaw cycles. The lightweight aluminum (Shake profile at 0.58 lb/sq ft) won't strain your structure under snow load, and the panels' thermal conductivity helps prevent the cold spots where ice dams form. Optional snow guards can be installed where desired for safety.
Will a metal roof leak during Dunthorpe's heavy rainfall?
No. Interlock panels are engineered with four-way interlocking seams that channel water off your roof—critical in a region averaging 1468 mm of rain annually. The seams overlap on all four sides, preventing water infiltration from any direction. When installed to spec over solid decking and underlayment, the system is watertight and complies with ICC-ES ESR-1790 for Oregon's IBC/IRC code requirements.
Why won't my aluminum metal roof rust like a steel roof?
Aluminum cannot rust because it contains no iron—the metal forms a self-healing oxide layer that protects it from saltwater, moisture, and Dunthorpe's 1468 mm annual rainfall. Even if the coating scratches, the aluminum substrate itself is immune to rust and rot, unlike steel roofs or wood shakes. This makes it ideal for wet Pacific Northwest climates where traditional materials degrade over decades.
Can hail damage my metal roof or help lower insurance premiums?
Interlock achieves UL 2218 Class 4—the highest hail impact rating—and the Guardian Warranty even covers perforation from hailstones up to 1.5 inches. This robust durability may qualify you for homeowners insurance discounts on comprehensive or extended coverage. Many insurers recognize metal roofing's resistance to the hail and wind gusts (up to 116 km/h in your area) that damage asphalt shingles, so contact your agent for potential savings.
Is my metal roof strong enough for Dunthorpe's wind gusts?
Absolutely. Interlock's four-way interlocking aluminum panels are warranted to resist wind speeds up to 120 mph (193 km/h)—well above Dunthorpe's typical gusts of 116 km/h. The overlapping seams on all four sides lock the panels together so wind cannot lift or separate them. This design, verified under ICC-ES ESR-1790, makes metal roofing far more reliable than asphalt in the Pacific Northwest's storm season.
How long will an Interlock metal roof last, and what's covered?
The Guardian Warranty is a lifetime limited, non-prorated material warranty for the original owner—covering rust, rot, splitting, cracking, curling, and loss of impact resistance. It's transferable once to the next owner for 50 years from completion, a major advantage if you sell. Combined with the 30-year coating warranty (Alunar PVDF fluorocarbon on both sides), your roof will outlive multiple asphalt replacements and retain value across ownership changes.
Do I need to reinforce my house for a metal roof's weight?
No structural reinforcement is needed. Interlock's Mediterranean Tile profile weighs only 0.59 lb/sq ft—about 96% lighter than concrete or clay tile—so it installs over most existing roofs without additional framing. Even the heavier Shake profile at 0.58 lb/sq ft is negligible compared to traditional materials. This means lower installation costs and the ability to retrofit older homes in Dunthorpe without expensive structural work.
How much maintenance does a metal roof really need?
Virtually none beyond occasional gutter cleaning. Unlike asphalt shingles (which crack and curl), wood shakes (which rot and split in Dunthorpe's 1468 mm annual rainfall), or tile (which chips and stains), aluminum roofing with Alunar PVDF coating resists fading, chalking, and weathering. The CALGreen-verified design eliminates the tear-offs, re-nailing, and sealant reapplication that consume time and money. You'll spend far less on upkeep over the roof's life.
Will a metal roof keep my home cooler and lower energy costs?
energy-efficient Interlock colors reflect solar heat efficiently, with thermal emissivity of 0.84 and initial solar reflectance up to 0.55 (Aged Copper Penny). This reflective quality works even in Dunthorpe's moderate climate (2957 sunshine hours annually, mean 11.5°C)—reducing cooling load in summer and easing HVAC strain year-round. The Cool Roof Rating Council rating confirms the coating's durability, maintaining reflectance over 30 years.
Is aluminum roofing actually better for the environment?
Yes. Interlock aluminum is approximately 95% recyclable at end-of-life, breaking the asphalt tear-off-to-landfill cycle that affects hundreds of roofs in Oregon annually. Manufactured in Delta, BC since 1998, the panels ship lighter than tile or slate, reducing transport emissions. By lasting 50+ years and eliminating frequent replacements, metal roofing cuts the embodied carbon and waste of traditional materials over your home's life.
Is a metal roof a good choice for Dunthorpe’s climate?
Yes. Dunthorpe averages about 48 cm of snow, 1468 mm of rain, roughly 36 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.
