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

Johnson City Metal Roofing Experts Installing Lifetime Interlock® Aluminum Shingles Since 1997

Metal Roofing Built for Johnson City's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection

Interlock Metal Roofing (PNW) Inc. is Johnson City, 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 to the unique Pacific Northwest climate. Our heavy-gauge, fire-resistant roofs are engineered to withstand Johnson City’s wet winters, heavy snowfall, and seasonal storms, providing superior snow shedding and long-term protection. With energy-efficient cool roof technology, our systems help reduce energy costs during Oregon’s hot summers. Choose from the timeless elegance of slate, cedar shingles, shake, Mediterranean tile, or standing seam—each protected by the advanced Alunar® Coating System and backed by a Lifetime Warranty. For roof replacement or re-roofing, trust Interlock Metal Roofing (PNW) Inc. to safeguard your Johnson City home with the best in metal roofing solutions.

Interlock metal roofing styles including slate, cedar, shake, tile, and standing seam in Johnson City, 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

Impact Resistant

UL 2218 Class 4 — top hail rating

Corrosion Resistant

Aluminum won’t rust or corrode

  • Precision weatherproof seams (profiles: slate, cedar, shake, tile) and mechanical fastening (profile: standing seam) deliver long-term leak protection during wind-driven rain events that hit Johnson City roofs during Pacific storm cycles.
  • Aluminum coated with the Alunar® Coating System (no visible aluminum surface) resists corrosion and maintains finished color in Johnson City’s persistently damp, low-elevation climate.
  • Tested to 120+ mph (193+ km/h) for severe gusts—built to withstand Willamette Valley windstorms and occasional downtown Johnson City gust events.
  • Class A fire-rated available to help protect Johnson City homes and nearby Clackamas County properties from ember exposure during regional dry spells.
  • UL 2218 Class 4 impact resistance reduces damage from hail, falling branches, and storm debris common in seasonal windstorms around Johnson City.
  • Engineered to shed heavy rainfall and resist ponding during atmospheric river events that deliver extreme precipitation to the Johnson City area.
  • Designed to limit moss and biological growth on damp roofs—key for Johnson City locations with long, cool wet seasons and persistent roof moisture.
  • Thermal performance and cool-roof characteristics help reduce attic heat gain during summer heat waves while improving year-round indoor comfort in Johnson City homes.
  • Solar-compatible panel mounting solutions preserve roof integrity and simplify PV installation for Johnson City homeowners pursuing rooftop solar.
  • Corrosion-resistant finish and sealed seams reduce maintenance needs versus asphalt in Johnson City’s high-moisture environment.
  • Manufactured system profiles replicate slate, cedar shake, and tile for curb appeal while meeting local design expectations across Johnson City neighborhoods.
  • Sustainable, fully recyclable aluminum supports environmentally minded homeowners in Clackamas County and aligns with regional sustainability goals.
  • Low-profile, snow-shedding panels and secure fastenings help prevent localized snow buildup and minimize freeze–thaw cycling on roofs near Johnson City.
  • Backed by a Lifetime-Limited transferable warranty to protect resale value for Johnson City properties and provide long-term owner assurance.

Interlock Metal Roofing (PNW) Inc.

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.

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Get a Free Metal Roof Estimate in Johnson City, Oregon

Interlock® Aluminum Roofing — all-climates performance specs for Johnson City, Oregon

Spec / RatingClimate / 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 4Hail and impact debris: highest impact classification; resists cracking, splitting, and surface loss common with asphalt under hail strikes.
Snow & ice performance: interlocking, shedding profileHeavy 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 systemHigh heat, intense sun, thermal cycling: coatings resist UV breakdown and temperature-swing fatigue, slowing fading and surface degradation.
Moss / algae resistance: smooth coated surfaceWet 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+ yearsLong-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 transferableLifetime protection + resale value: guarantees long-term material confidence and transfers to future owners.

Available Profiles in Johnson City, Oregon:

What our customers are saying:

★★★★★
Review: January 27, 2026 Completion: June 10, 2004

Ivan has worked on our roof multiple times. He is always responsive, communicative, efficient, and effective. We can recommend him and Interlock Roofing

★★★★★
Review: June 15, 2016 Completion: April 18, 2016

Thank you Interlock Roofing for providing such a quality product and installation from which we will receive years of permanent protection from the elements. The job went smoothly. The crew showed up early and stayed late, answered all our questions, leaving a clean job site at the end of each day. The attention to detail was impressive. The house was a complex roof with skylights, vents and a masonry chimney. The quality and design of all the types of flashing’s, ridge vent, and fasteners were quite impressive and were expertly installed. The hardworking crew was attentive and stayed late when a rainstorm was expected to ensure we were watertight. This diligent crew was the best representative Interlock can have. From the initial contact at the Home and Garden Show in Portland to the visit from the Interlock Representatives to explain the product and show us the options, the experience was enjoyable and fun. One does not expect such friendliness when dealing with a larger company. We look forward to many years under our new roof.

★★★★★
Review: August 15, 2023 Completion: April 26, 2023

Over eight years ago, I needed a new roof on my over 100 year old house and after significant research, decided to use Interlock Roofing. The installers arrived on time, were professional and completed the job as expected.A few months ago, my shop was in need of a new roof and I needed to do no research- I called Interlock, without hesitation. Working with Ross and Mike was very easy. I expected to have the work started sometime in the summer. But then I received a call that there was an unexpected break and that Interlock could start that day. I readily agreed, and the installers arrived by mid-morning. Once again the installers were polite, professional and were finished quickly. They cleaned up the site well. I am as happy today as I was years ago with Interlock. I have since added another project and am eagerly awaiting Interlock to complete it. I have no doubt that I will receive the same great product and professional installation. Positive, Responsiveness, Punctuality, Quality, Professionalism, Services: Roof installation

★★★★★
Review: July 15, 2022 Completion: May 16, 2022

We recently had our wood shake roof replaced with an Interlock metal roof that resembles the old wood shake roof. It looks fabulous and Victor and crew did a very professional job and removed all debris from the the old roof. We live among a lot of fir trees and with the ever present fire danger it is good to know we have the assurance that our roof is protected. We recommend Interlock Roofing to anyone looking at metal roofing and would be happy to show off our roof to anyone interested. Positive, Quality, Professionalism, Value, Services: Roof installation

★★★★★
Review: March 21, 2017 Completion: January 27, 2017

Pine needles and more pine needles along with fir boughs each season covers our roof all throughout the year. We are consistently getting on the roof to blow off the needles and clean off the fir boughs. Though the job of cleaning off the roof does not take more than 3 – 4 hours, we were looking for a better way and an easier solution to our situation. Our neighbor was in the process of getting a new roof put on; it was Interlock Roofing Systems. We asked many questions regarding their roof and the options available. Their finished roof looked great. The metal roof in the slate shingles option looked really good. They were very pleased with their roof, the installers, and the installation process. Our sales representatives, Mike and Ross, explained the advantages of a metal roof, the benefits of Interlock Roofing and the installation process, answered all our questions and assured us that we’d be very pleased purchasing an Interlock Roof. Peter and Victor, our installers were personable, explaining their process. We had a couple of snow and ice days prior to our scheduled date, so they had to work hard to clean off and prepare the roof. They worked very diligently in the cold and some days in the heavy rain. Our roof took a few extra days waiting for additional materials to arrive. When it was all done, February 1, 2017, our Interlock Slate shingle roof looked great. We are pleased and are looking forward to years of our beautiful featured addition to our home.

★★★★★
Review: February 18, 2016 Completion: November 30, 2015

We first learned about Interlock Roofing when researching roofing options on the internet. We became interested in a metal roof due to our constant problems with moss and fir needles. We went to the September 2015 Home and Garden Show to learn more. Interlock had a great display at the show, and the representative cleared up some questions we had. We scheduled an appointment, and within a week Ross and Mike came out and explained their product to us. They brought samples of the different styles and " data-wpil-keyword-link="linked">colors of their materials and thoroughly explained how their system worked. They even brought a collection of pictures from previous houses so we could decide the best look for our house. As they were measuring the roof, we watched a video on their company and all of the materials and guarantees they provide. We were impressed by their knowledge and experience. The installation only took about three days. Vladimir and Greg, our installers, were very friendly and worked diligently. They took the time to explain what they were going to do and how they were going to do it. Their craftsmanship really shows on the finished roof! We were extremely impressed when they were waiting on one piece of flashing to be in stock and Vladimir drove all the way from " title="Seattle" data-wpil-keyword-link="linked">Seattle to install the finishing piece. We can tell they take pride in the work. We ended up with a beautiful roof and several people have stopped to ask about our roof. We had received many compliments on how the style complements our home. Now that we have lived with it for a few months, we are not disappointed with our choice. It looks great, there is no moss, and the fir needles rinse off with the rain. It is quiet even in the worst rain storm and best of all, it will be the last roof that this house will ever need. We will likely save energy costs this summer and will greatly reduce, or eliminate altogether, ever having to go on the roof again. We highly recommend Interlock Roofing to anyone looking for a forever roof that looks great. All of the people that we dealt with were very knowledgeable and informative. They were easy to talk to and there was never a high-pressure sales pitch. We wouldn’t hesitate to recommend them or talk to anyone about our very good experience.

★★★★★
Review: February 3, 2016 Completion: June 7, 2015

Our home was recently the lucky recipient of a new aluminum shingle roof by Interlock. We are sure that if our house could, it would be singing! So, my husband I and will gladly speak for it. We cannot say enough good things about the quality of our new roof material and installation. From the first visit with the sales team (thank you Mike and Ross) we were impressed with the professional and trustworthy service of Interlock representatives. The whole job took place right on schedule with lots of communication all along the way. The installation crew (thank you Peter!) was hard working, intent on making sure every detail was done to perfection, considerate of our landscaping and a pleasure to have on our property. The finished product: WOW! We love it! This new Interlock roof not only makes our farmhouse and garage look fabulous, in addition, we are so happy to know we will never scrape moss again, not to mention that we will probably never even replace our roof again! The color and style of the shingles are so pretty and we know our home is protected from the elements like never before. We won’t hesitate to recommend Interlock Roofing whenever we have an opportunity. This company has developed a product that really measures up to everything it advertises. Thank you, everyone at Interlock. We loved doing business with you!

★★★★★
Review: February 3, 2016 Completion: September 18, 2015

We would like to thank Interlock Roofing for the excellent product and service we received when replacing our roof. We began work on our one-hundred-year-old house many years ago and thought that we had always hired competent contractors to complete work that we did not do ourselves. However, when replacing the original tongue and groove eaves last summer, we discovered that our seventeen-year-old composition roof was failing due to poor installation. A relatively small project became a much larger undertaking. Since we live in an area where we have a stand of trees behind us and considerable shade, moss has always been a concern. In an effort to avoid any more issues with a roof, I began researching various alternatives. Then I found Interlock Roofing! I learned more about roofing in a short amount of time than I had to talk with several other suppliers. All my questions were answered and my concerns were addressed. Communication between the sales department and the installation department was top-notch. The crew arrived when scheduled and completed the job in a timely manner. After we considered the job complete, we discovered a small problem. That, too was addressed quickly and without question. If we were to need another roof, we would hire Interlock Roofing again. But the excellent " data-wpil-keyword-link="linked">warranty makes that an improbability. We heartily recommend Interlock Roofing to anyone.

★★★★★
Review: November 15, 2022 Completion: October 27, 2006

My wife and I chose the cedar shake look. It turned out very nicely. The crew took the time they needed to do the job right and explained the steps they were taking along the way. If you are looking for a high quality, long lasting, product that will impress, look no further. Services: Roof installation

★★★★★
Review: April 25, 2016 Completion: July 30, 2015

To the Interlock Corporation, What can you say about a home improvement experience such as replacing the roof on your house? From the first contact to the completion of the project, it was the most enjoyable experience a person can have when dealing with a large commercial company. From the initial non-high pressure, very informative sales contact from a Home and Garden show to the friendly, efficient and respectful installers to the final personal contact to ensure we were satisfied with the results and that we were enjoying our new roof. The application and quality of the materials are beyond expectations. We have been enjoying the roof through the winter winds and rain, and hail of the Pacific Northwest. Everyone asks if it is noisy and tinny when it rains. We reply, “of course not! “ It is even quieter than the comp roof we just replaced. We ordered the deep charcoal grey slate. After the rain, while still wet, the roof shines and glistens like real slate. It is a welcoming sight compared to the dull comp roofs of our neighbors. Shortly after installation, there was a wedding up the road from us. We heard from a friend who attended that our roof was the " data-wpil-keyword-link="linked">hot topic of discussion since everyone had to drive by our house to reach the wedding. We get many compliments from people who drive by. The installers, while being friendly, are very proud of their workmanship, and we liked the fact that they kept referring to the roof as “their roof”. Hard-working and diligent in the task, they were attentive to every detail. The best onsite reps Interlock could ever have. They were proud of the many years of service working for the company, and that fact, too, lends itself to efficient communication and workflow. The installation happened during the summer during some of the hottest days on record. The installers measured their days, coming early, resting during the hottest times and returning during the coolness of the evenings, doing what needed to be done to get the job done. While more expensive than traditional comp roofs up front, the fact that we never have to replace the roof during our lifetime is well worth it. This house is our forever house, and the best part of our new roof is the fact that my husband will never have to climb up a ladder to clean off the moss that grows so well here in the wet but green northwest. After much investigation and consideration of other metal roofing products on the market, we highly recommend a metal roof, specifically one by Interlock.

★★★★★
Review: August 15, 2022 Completion: May 18, 2022

Company was very attentive to keep us updated on timing for installation. Weather was not cooperating and installation start was much longer than any of us anticipated but we received calls regularly letting us know they hadn't forgotten us. Once the installation was started it was finished in record time. Installers did a great job. We love our roof. It looks great.

Nearby service areas in Clackamas County

Interlock® metal roofing is also installed in these communities near Johnson City:

Interlock Metal Roofing (PNW) Inc. also services nearby States

Beyond Johnson City, our team installs Interlock® metal roofing across:

Metal Roofing FAQs for Homeowners in Johnson City

The following metal roofing FAQs are designed specifically for homeowners in Johnson City, 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 Johnson City.

How does a metal roof handle heavy snow and ice in Johnson City winters?

Interlock's four-way interlocking aluminum panels shed snow and ice effectively because the smooth, hard surface prevents accumulation that would bog down asphalt. Johnson City receives about 48 cm of snow annually with roughly 36 freeze-thaw cycles per year—conditions that crack and curl asphalt shingles but leave aluminum unaffected. The panels' light weight (Shingle profile at 0.41 lb/sq ft) means no structural upgrade is needed, and optional snow guards can be installed to manage slide-off. The 120 mph wind warranty also protects against the gusts that often accompany winter storms here.

Will a metal roof leak in Johnson City's wet climate?

No—when installed to spec over solid decking with proper underlayment, the four-way interlocking seams are virtually impervious to the 1,468 mm of rain Johnson City averages annually. The interlocking design forces water down and outward rather than laterally into seams. Unlike asphalt, which degrades under constant wet-dry cycles, aluminum's oxide layer actually self-heals when scratched, so the Alunar 70% PVDF coating (30-year color warranty per ASTM D4214) stays intact. The ICC-ES ESR-1790 evaluation confirms water-resistance compliance with current building codes.

What hail protection does Interlock metal roofing offer, and can it lower insurance premiums?

Interlock's aluminum panels carry a UL 2218 Class 4 impact rating—the highest available—and the Guardian Warranty even covers perforation from hailstones up to 1.5 inches. Class 4 rating often qualifies homeowners for insurance discounts because the roof eliminates a major claim category. Johnson City experiences occasional severe wind gusts (up to 116 km/h recorded), which often accompany hail. Because aluminum doesn't crack, split, or lose impact resistance the way asphalt does under hail stress, your roof remains claim-resistant for decades. Contact your insurer about discount eligibility once installed.

Can a metal roof stand up to Pacific Northwest wind in Clackamas County?

Yes—the four-way interlocking aluminum panels are warranted to resist wind speeds up to 120 mph (193 km/h) when installed to specification. Johnson City's typical daily-max winds average 15 km/h with gusts recorded to 116 km/h, well within the roof's rated capacity. The interlocking design means each panel is mechanically locked to its neighbors on all four edges, distributing wind load across the entire roof rather than concentrating stress on fasteners alone. This is why Interlock has performed from coastal Pacific Northwest homes to Antarctic research stations—the engineering handles both steady wind and sudden gusts.

Is a metal roof a better financial investment than asphalt shingles over time?

Yes, if you plan to stay in your home long-term. Asphalt typically needs replacement every 15–20 years; Johnson City's 1,468 mm annual rainfall and 36 freeze-thaw cycles accelerate that degradation. Interlock's Guardian Warranty is lifetime limited (non-prorated) for the original owner and transferable for 50 years from completion—eliminating the tear-off cycle entirely. Over 50 years, the material cost advantage compounds: no replacement, no labor, no landfill disposal, and minimal maintenance. Current financing offers include no payments and no interest until Spring 2027 or 10% off installation, making the upfront gap smaller.

Will an aluminum metal roof help reduce cooling costs in summer?

energy-efficient Interlock colors reflect solar heat rather than absorb it like asphalt does. Cool Roof Rating Council–rated finishes achieve initial solar reflectance up to 0.55 and thermal emissivity of 0.84, meaning the roof stays cooler and transfers less heat into living spaces. Johnson City enjoys about 2,957 sunshine hours annually—enough for the reflective coating to meaningfully reduce air-conditioning demand on warm days. The lighter weight of aluminum (Slate profile ~0.41 lb/sq ft) also means faster heat dissipation compared to heavy tile or slate, which retain daytime warmth into evening.

What's the actual lifespan of an Interlock metal roof?

The Guardian Warranty is lifetime limited (non-prorated) for the original owner, covering rusting, rotting, splitting, cracking, curling, and loss of impact resistance. This is transferable once to the next owner, extending to 50 years from completion. In practical terms, properly installed Interlock aluminum has performed for 25+ years in harsh salt-air and Antarctic climates. Johnson City's 48 cm annual snow and 36 freeze-thaw cycles are stressful but manageable for aluminum, which doesn't degrade under thermal cycling the way wood and asphalt do. Most original owners view it as the last roof they'll buy.

How much maintenance does a metal roof actually need?

Minimal. Unlike asphalt, which requires regular inspection for curling and moss, wood shake, which rots in wet climates, or tile, which cracks under freeze-thaw stress, aluminum resists all three damage modes. Johnson City's 1,468 mm annual rainfall and 36 freeze-thaw cycles don't degrade aluminum—the Alunar 70% PVDF finish (30-year color warranty) handles UV and moisture without degradation. Occasional gutter cleaning and visual inspection after severe weather suffice. The ICC-ES ESR-1790 code evaluation confirms CALGreen verification for reduced maintenance, making it an economical long-term choice in a wet climate.

Can a metal roof be installed over my existing roof?

Yes, in most cases. Interlock's extraordinary light weight—the Tile profile is about 96% lighter than concrete or clay tile, and the Shingle installs at just 0.41 lb/sq ft—means no structural reinforcement is needed. The roof typically installs directly over the existing structure, eliminating the time and landfill cost of a tear-off. Installation timeline depends on roof area and weather, but the one-day install of some sections reduces exposure to Johnson City's frequent rain (1,468 mm annually). Interlock Metal Roofing (PNW) Inc. has served the region since 1997 and handles site-specific planning to ensure proper drainage during the 36 freeze-thaw days Johnson City experiences per year.

Is aluminum roofing better for the environment than asphalt?

Substantially. Interlock's aluminum is approximately 95% recyclable and ends the asphalt tear-off-to-landfill cycle that repeats every 15–20 years. Johnson City's 1,468 mm annual rainfall and 36 freeze-thaw cycles accelerate asphalt failure, meaning more frequent replacements and more waste over your lifetime. Aluminum, by contrast, lasts for 50+ years and enters the recycling stream as valuable material rather than landfill volume. The roofing-grade 3105-H24 and 3003-H24 alloys (ASTM B209) are manufactured responsibly and cycle indefinitely without degradation—a genuine cradle-to-cradle advantage over petroleum-based shingles.

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