Metal Roofing in Collins View, Oregon — Lifetime Interlock® Aluminum Shingles Installed Locally
Collins View Metal Roofing Experts Installing Lifetime Interlock® Aluminum Shingles Since 1997
Metal Roofing Built for Collins View's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection
Interlock Metal Roofing (PNW) Inc. is the trusted local metal roofing contractor and exclusive authorized installer of Interlock® Lifetime Aluminum Roofing Systems in Collins View, Oregon. Since 1997, we have provided homeowners with premium roof replacement and re-roofing services designed specifically for the Pacific Northwest’s unique climate. Our heavy-gauge, fire-resistant, and energy-efficient cool roofs are engineered to withstand Collins View’s rainy winters, occasional snow, and seasonal temperature swings, ensuring superior snow shedding and long-term protection. Choose from the timeless beauty of slate, cedar shingles, shake, Mediterranean tile, or standing seam profiles—all with the unmatched strength and durability of metal. Every Interlock roof is protected by the advanced Alunar® Coating System and backed by a Lifetime Warranty, making it the best choice for lasting performance, curb appeal, and peace of mind for your Collins View home.

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 Interlock® installer serving Collins View and Multnomah County homeowners for professional lifetime-aluminum roofing installations
- Precision weatherproof seams (profiles: slate, cedar, shake, tile) and mechanical fastening (profile: standing seam) deliver long-term leak protection during wind-driven rain events
- Aluminum panels are coated with the Alunar® Coating System (no visible aluminum surface) for durable finish and corrosion resistance
- Rigorously tested for severe wind performance — rated to withstand sustained coastal‑gust equivalent speeds (193+ km/h / 120+ mph) relevant to Pacific storm impacts in the Portland metro area
- Advanced waterproof installation details minimize roof-edge and penetration leakage during Collins View’s extended wet seasons and wind‑driven rain
- Snow‑shedding panel geometry reduces rooftop snow buildup and helps prevent ice dams during occasional freeze–thaw cycles in Multnomah County
- Designed to tolerate rapid seasonal transitions and persistent moisture so roofs in Collins View stay dimensionally stable and leak‑resistant
- Helps resist salt intrusion during strong Pacific storm events that can carry marine aerosols inland to Multnomah County, protecting metal components and finish
- Moss‑resistant finish and smooth Alunar® surface reduce persistent organic growth common on damp Collins View roofs, lowering maintenance needs
- Built‑in impact protection meets UL 2218 Class 4 for enhanced resistance to hail, falling branches, and storm debris typical of regional windstorms
- Class A fire-rated available to improve ember and radiant‑heat performance during dry periods and localized wildfire risk in the broader Portland region
- Energy‑efficient cool‑roof options reduce summertime heat gain, improving attic comfort in Collins View during occasional heat waves
- Solar‑friendly roof profiles engineered for modern bracket‑mounted PV systems, simplifying installation for Collins View homeowners pursuing rooftop solar
- Fully recyclable aluminum roofing supports sustainable building goals for Multnomah County properties and reduces long‑term lifecycle waste
- Low‑maintenance roof system with premium architectural profiles (slate, cedar shake, tile, standing seam) that preserve curb appeal and outperform asphalt shingles in a wet Pacific Northwest climate
Metal roofing built for Collins View'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 sales@oregonmetalroofing.com
- Toll-Free 1-866-733-5811
- Customer Service pnwservice@interlockroofing.com
- 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 Collins View, Oregon
Interlock® Aluminum Roofing — all-climates performance specs for Collins View, 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 Collins View, Oregon:
Explore all Interlock® metal roofing systems, or see the Guardian lifetime warranty and independent testing reports.
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Completed Interlock® metal roofs near Collins View, OR
Every marker is a real, anonymized Interlock® aluminum roof completed by a Certified Interlock Installer. Explore verified Interlock® installations near Collins View, 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 Collins View on the interactive project map →Browse all Interlock® projects in Oregon →See more Interlock® projects →
What our customers are saying:
We cannot begin to tell you how thoroughly satisfied we are, with not only our beautiful new slate roof, but every employee we had interaction with from start to finish.Mike and Damon were our first introduction to this company. They were polite, professional, informative and thorough in their presentation.Next we had several (over the phone) encounters with May. She worked diligently and professionally in getting our job scheduled between the time frame we needed.Now come the installers, Peter and Victor. These brothers are hard working, VERY knowledgeable, professional men with the highest of integrity. They started the job late (after coming from another job some distance away) the first evening, worked until dark. They returned the next morning, early, and put in 12 hours of work. (Again until just before dark)Came back and did an amazing job cleaning up everything!This is a quality product and a quality installation from a quality company we would recommend at any time.Thank you Interlock Industries, Inc. You have given these satisfied customers piece of mind in knowing we have a beautiful, lifetime roof.PositiveResponsiveness, Punctuality, Quality, Professionalism, ValueServicesRoof installation
So I needed to get a new roof on my 1925 farm house and I wanted to get something that would last the rest of my lifetime; a metal roof was the right call. After looking online at different companies and getting a couple quotes, I decided to go with interlock. Damon showed us how the roof is installed and the interlocking shingles sold us. We had crazy wildfires here in Oregon 2020 that messed up a lot of schedules but the company was very responsive and accommodating. Victor was the lead of the installers and they were timely, friendly, professional in appearance and a pleasure to have onsite. They were very respectful of our property and cleaned up all the debris that comes with roofing. I would highly recommend them to anyone that wants a metal roof to last. Thank you Interlock, your team did a great job. Positive Responsiveness, Quality, Professionalism Services Roof installation
We had already decided on a metal roof when we came across Interlock. It was one of those things where we were looking for a product with a quality standard that could match up to what we wanted. I’ll say this, Interlock works a bit differently from most of the roofing people we talked to. You’re going to talk to a sales person at your home visit, but don’t let that put you off. They’re knowledgeable and if you haven’t done your research, there will be some great information in the whole thing that’s really worth soaking up. Anyway, we were satisfied with the quality of the product in hand and decided to go ahead and go with Interlock. The install was delayed by a week due to some shipping issues, but that was really the beginning and end of the troubles. The Interlock folks let me know what was going on and when they’d have it sorted. All fine by me. It’s a lifetime roof, I’m not too upset if it takes an extra week to put it on. As I understand it, mine was a bit of a one-off problem anyway. The roofers were professional, quick, and thorough. Great people who worked quickly, cleanly, and the cleanup at the end of the day was nigh on amazing. Apparently the shipping issues on my initial order led to the final install of a very few pieces being delayed a few days, but before I knew it they were back out and finishing the job. Along they way they kept me updated on anything I needed to know. The finished product is the real question, I guess. And man, let me tell you. We’re more than happy with how it looks on the house. It’s especially crazy knowing that something that looks that good is going to last. You see standing-seam metal roofs all over and even with these you sort of wonder how “metal” the Interlock system is going to look. It looks great. Seriously, even right in the driveway it’s hard to tell it’s not either a slate or colored shingle roof. It’s really beautiful and it’s going to be there without the need for constant maintenance for a long, long time. That really makes the cost worth it. If you’re thinking about a metal roof, give Interlock a serious thought. The sticker price might make you jump a little in some areas than others, but now that it’s on the house I am happy we decided to go that way. It’s beautiful, it’s going to last a good long time, and there’s a certain confidence I get from knowing I’ll be dealing with the people who make it if there’s a problem.
We had a gorgeous Red Shingle Interlock roof installed and it had completely changed the look of our house! This roof was a long time coming…we placed the order in September 2021 and knew there was a 6mo wait but we were determined to wait it out and it was so worth it!The crew worked so fast and efficiently and really did a fantastic job. They were also super clean and made a great effort to leave no mess behind and even took care not to crush my plants.This is an expensive roof, make no bones about it, but the quality and durability as well as the beautiful look all are worth it.My house has had so many complements since it was done and compared to my neighbor next door who had a roof put on a couple months ago with traditional shingles, it is clear my roof is the favorite of the block!! Positive Responsiveness, Punctuality, Quality, Professionalism, Value Services Attic venting, Attic venting repairs, Roof installation
To Interlock Roofing: We just had our house installed with a new metal roof from Interlock Roofing, and I was thoroughly pleased with the entire experience. That is a tall order in this day and age if you have had any dealings with contractors. The entire staff was excellent, from the first contact with Mike and Ross, who were very patient with my wife and me as we tried to pick out a color and type of roof from so many different choices. I appreciated their gentleness and show of concern for the decision. These two are a great team and have a lot of experience to bring to us. The installers were excellent as well, and we asked questions of them and they took the time to answer all of our concerns with kindness and showed they were very experienced in installing roofs. The interesting thing was ALL of the debris around the house that accumulates with a new roof, tiny pieces, large pieces, all were taken care of in the cleanup at the end and the area was spotless! I even looked for any piece left behind, but there was none! The end result is a beautiful roof that my wife and I are both impressed with, making our house look so nice – like brand new! We are amazed. Thank you all for a wonderful experience, and we look forward to a roof that will last 50 plus years, which by the way is longer than I plan on being around! Thanks too, for being such a great group of people to work with, providing a very pleasant experience.
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!
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.
Interlock roofing is a fantastic company and the representative, Damon, was incredible. Always there to answer questions in a quick timely manner. I couldn’t be happier. This Aluminum roof will never need to be replaced and it makes my simple home look like a million dollar home. It’s stunning. I chose black slate and it is so beautiful. Such peace of mind too. I would highly recommend this company and its employees. The installation crew were professional and careful and accommodating. Thank You Damon and Interlock Roofing. Positive Responsiveness, Punctuality, Quality, Professionalism, ValueServices, Attic venting, Roof installation
We saw the add on TV and knew a bit about Interlock Roofing and of course The “Never roof again”…. Slogan.Finally, we decided to contact them and make an appointment. I recommend to do your work and check your roof, have ANY kind of questions or doubts that are particular to your case and be ready for your appointment.Damon, our sales guy, was great and answer ALL, and by that meaning ALL questions that we have, for example:How long it takes?How invasive construction will be?What about our skylights?What about vents?What will happen to gutters?How many people will be in my Home?Debris?Warranty of the product?Warranty and insurance?What if I sell my home, warranty?When will work start?…… WELL, and probably 20 more questions.I already helped you tons with this examples of question.Again, Damon was great and on point and also very HAPPY to be challenged by a well involved client (Us).Finally, WE WENT FOR IT !!!!!! and ………WE LOVE IT !!!!! LOVE IT ! LOVE IT!My deeply THANKS TO :MARK / TIM / VICTOR AND of course the wonderful PETER; these guys were our installers and we communicated well and they were FAST AND IMPECCABLE.Now, let’s consider the times that we are living in….There was some waiting, there were jobs ahead of ours, and everything depends on nature too, so considering All of that….. WE LOVE THE ROOF! The look! The fact that we WON’T reroof again.We hope this helps you on your decision to go with Interlock. Positive: Quality, Professionalism, Value Services: Roof installation
We had decided that we were ready to invest in a metal roof in our "forever home" for, among other reasons, its durability, eco-friendlly recyclable materials and light weight for seismic concerns. Damon was punctual and professional and an excellent salesperson. We had a very positive experience with May regarding scheduling; she was able to accommodate our timeframe and the crew showed up earlier than anticipated. The workmen were professional and very fast, and completed the tear-off and roof installation in 2.5 days. We were very impressed. The new roof is extremely attractive, and provided the whole house with the equivalent of a much needed "facelift!" We are delighted with our new roof and enjoy it every time we step away from the house to admire it. More thorough clean up, using magnetic tools to discover razors, nails and staples from tearoff. Better, more complete tarping to catch debris, not only on the slant side of the roof, but also the gable sides that are not slanted. They were not tarped, and that is where most of the debris and nails were found. An assessment for lead paint BEFORE working, which was promised, but not done. A smaller Interlock sign, in less garish (ie not fluorescent) colors, to display that would be acceptable for Washington County and the laws of other areas. I am not sure if the cardboard, water bottles and metal was separated and recycled off site, because it was all tossed into the same dumpster, but I would hope that since Interlock prides itself on eco-friendly recyclable materials, that it would follow through with recycling paper and metal as well. Roof, material, workmanship: 5 stars, Areas for improvement: Testing for lead pre-install, Tarping for Debris catch and Cleanup: Improvement needed, Communication re: Cleanup: Improvement needed, Information re: payment (cash, no credit card, upon completion): Improvement needed
We are very pleased with our new Interlock roof. While our house is nearly 100 years old, the new roof fits perfectly with the style and enhances the look of our home. We began receiving compliments from our neighbors almost immediately. Michael Laduke and his crew were professional and courteous, keeping the surrounding yard clean of debris and closing the gates each day to prevent our dog from escaping. Although the crew was slightly delayed due to an unfortunate encounter with a deer on the road, the work was completed just before the Thanksgiving holiday, adding the health and well-being of the crew and the beauty and protection of a new roof to our list of things to be thankful for. We greatly appreciate Mr. Laduke’s commitment to detail and his personal assurance that the project was completed before the holiday weekend. We would most certainly recommend Interlock Roofing Systems to anyone considering roof replacement.
Please consider this my letter of testimony regarding the installation of my beautiful Musket Grey Slate roof! From the beginning of this “roof project”, all of my conversations with Meg and Claudette were friendly and my questions were answered by these pleasant and knowledgeable ladies. Since I had already seen a presentation with a neighbor, Mike Rasmussen was able to save us both some time as I was very ready to get my leaky roof replaced! He thoroughly explained how the aluminum fits together and assured me the trained installers really did know what they were doing! Rolland called to let me know when he would be delivering the materials. He was right on time – even with snow and icy roads to contend with! He very neatly placed boxed materials next to the garage and then covered everything with a tarp to keep it dry. I was concerned with his and the installers’ safety during those unusual winter weather conditions but both Rolland and Peter seemed to take it in stride. Peter was very efficient and explained how things worked and answered my questions that I didn’t know I had until I watched how fast yet carefully he worked. Mike was right – Peter was quick and there was very little wasted material when he had completed everything! As it turned out, Peter was the only installer and he wasted NO TIME removing the chimney, getting my skylight replaced and the roof was done in only two days!! It was unusually COLD in Oregon those days; January 7th and 8th. He worked well into the dark evening hours on both nights, which I thought was above and beyond the call of duty. He carefully cleaned up after himself before he left. As you see, I am very impressed with my new roof. At one point, I was concerned that the aluminum may be “noisy”, however, with the amount of hard rain we have had, there is no more noise than there was with my old shingle roof. Again, I am impressed. My son is thrilled that he will never have to get up and toss laundry soap around on the roof to kill the moss! Just today, a gentleman stopped to chat about my roof as he’d noticed the sign in my yard. I happened to be outside for a few minutes and was happy to share my very pleasant experience with him. Neighbors have stopped to look at the sign and check out the roof on their walks. Enclosed are pictures of my “roof project”. Strangers would not know there ever was a chimney on the house. Peter was very careful removing the bricks which I appreciated since the new Leaf Guard system was recently installed. I thank you all for your help with updating my house. Please feel free to call me at 503-xxx-xxxx if you would like further comments.
Nearby service areas in Multnomah County
Interlock® metal roofing is also installed in these communities near Collins View:
Interlock Metal Roofing (PNW) Inc. also services nearby States
Beyond Collins View, our team installs Interlock® metal roofing across:
Metal Roofing FAQs for Homeowners in Collins View
The following metal roofing FAQs are designed specifically for homeowners in Collins View, 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 Collins View.
Will a metal roof handle Collins View's snow and freeze-thaw cycles?
Yes—aluminum's smooth surface sheds snow and ice far more effectively than asphalt, and it expands and contracts uniformly with Collins View's approximately 36 freeze-thaw days per year without cracking or splitting like wood or concrete tile would. The four-way interlocking design prevents water infiltration even when snow melts against ice dams. Aluminum alloy (ASTM B209) has been proven in far colder climates, including an Antarctic research station, so the region's ~48 cm annual snowfall poses no structural or durability risk.
How does metal roofing perform in Collins View's heavy rainfall?
Metal roofs are superior to asphalt in heavy rain because water runs off immediately rather than pooling in granule valleys. Collins View receives about 1468 mm of annual rainfall, and the four-way interlocking aluminum panels—installed over a solid deck and underlayment—create a sealed weather barrier equivalent in sound and leak resistance to asphalt, with zero degradation over time. Unlike asphalt, which breaks down under UV and moisture exposure, the roofing-grade 3105-H24 aluminum and Alunar 70% PVDF coating (warranted 30 years) won't soften, crack, or lose structural integrity from the constant wet.
Why doesn't aluminum rust like steel roofing does?
Aluminum cannot rust because it contains no iron; the element that oxidizes in steel is simply absent. When aluminum's surface oxide layer is scratched, it self-heals by forming a new protective oxide instantly—a property that makes it ideal for rainy climates. Steel roofs, by contrast, require painted coatings to prevent rust, and once that coating fails, the rust cycle begins. Collins View's coastal moisture and ~1468 mm annual rainfall would accelerate steel corrosion, but aluminum alloy (ASTM B209) has been installed in high-salt coastal homes and remains corrosion-free decades later.
Can my house support a metal roof, or do I need structural work?
No structural reinforcement is needed. The Slate and Cedar Shingle profiles install at approximately 0.41 lb/sq ft, and even the Mediterranean Tile—which replicates heavy clay tile—weighs only ~0.59 lb/sq ft, about 96% lighter than the real thing. Most existing roofs can support this load without modification, and the design was specifically engineered to install over current asphalt or wood shakes. Your home's framing was built to handle asphalt's weight, so aluminum's featherweight design means faster installation and zero costly structural upgrades.
Will a metal roof blow off in Collins View's wind gusts?
No. The Interlock system is warranted to resist wind speeds up to 120 mph when installed to specification, and Collins View's typical wind gusts reach approximately 116 km/h (72 mph). The four-way interlocking aluminum panels create a unified structural system where each panel locks into its neighbors—wind cannot peel or lift individual sections. ICC-ES evaluation ESR-1790 confirms the system's code compliance for wind resistance across IBC/IRC standards, so you're protected well above the local gust profile.
Does hail damage void the warranty, or is it covered?
Metal roofs achieve UL 2218 Class 4 impact rating—the highest available—meaning they withstand hailstones up to 1.5 inches in diameter without perforation. The warranty even covers hail damage up to that threshold. In regions with documented hail risk, some insurers offer premium discounts for Class 4 roofs. While Collins View's climate data shows no exceptional hail frequency, the combination of heavy rainfall, occasional freeze-thaw cycles, and wind gusts to 116 km/h creates a case for impact-resistant roofing. If you ever relocate to a hail-prone zone, your Interlock roof goes with you at full protective value.
Can a reflective metal roof save on heating and cooling costs in Oregon?
Yes. energy-efficient Interlock colors have thermal emissivity up to 0.84 and solar reflectance up to 0.55 (Aged Copper Penny), meaning they reflect heat that asphalt absorbs and re-radiates into your attic. With Collins View averaging 2957 sunshine hours per year and mean temperatures around 11.5°C, a reflective metal roof reduces summer cooling demand and maintains more stable attic temperatures year-round. The Cool Roof Rating Council certification quantifies this benefit. Over a 50-year roof life, the cumulative energy savings offset a meaningful portion of the material cost, especially if you use air conditioning during the region's warmer months.
What does Interlock's lifetime warranty actually cover, and how long is it good for?
The Guardian Warranty is a non-prorated, lifetime limited material warranty for the original owner—covering rusting, rotting, splitting, cracking, curling, and loss of impact resistance. It transfers once to the next owner for 50 years from completion, meaning a roof installed today protects two households across half a century. No other major roofing material offers this. The Alunar 70% PVDF coating alone carries a separate 30-year warranty against chalking and fading (ASTM D4214/D2244), and because aluminum cannot rust or rot and the interlocking design prevents water infiltration, the material simply outlasts asphalt (15–20 years) and most architectural shingles (25–30 years).
Can metal roofing look like slate, shake, or tile without appearing cheap?
Yes. Interlock offers five profiles—Slate, Cedar Shingle, Shake, Standing Seam, and Mediterranean Tile—each manufactured from roofing-grade 3105-H24 aluminum alloy with Alunar 70% PVDF coating applied to both sides. The profiles replicate traditional materials in texture and shadow line at a fraction of the weight and maintenance. Because the aluminum is precisely formed and color-locked by a 30-year-warranted finish, they maintain authentic appearance indefinitely—no fading, chalking, or grain loss. Collins View's architectural diversity means homeowners choosing Slate gain slate's elegance, Cedar Shingle owners get wood's traditional charm, and Tile selections deliver Mediterranean character without the fragility of actual clay tile under freeze-thaw stress.
How often do I need to maintain a metal roof compared to asphalt or wood?
Virtually never. A metal roof requires no resealing, re-coatings, algae treatment, or granule replacement—tasks that consume thousands of dollars and labor over an asphalt roof's 15–20 year life. The roofing-grade aluminum alloy and Alunar 70% PVDF finish (warranted 30 years) resist UV degradation, moisture, and weathering without intervention. Occasional gutter cleaning and inspection after severe weather are standard for any roof type, but the material itself will not soften, curl, split, or require patching. CALGreen verified this roofing's reduced maintenance profile. For homeowners in Collins View facing ~1468 mm of annual rain and 36 freeze-thaw days, the simplicity and durability of aluminum versus wood shake (which splits in freeze cycles) or asphalt (which hardens and cracks) saves decades of upkeep.
Is a metal roof a good choice for Collins View’s climate?
Yes. Collins View 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.





