Metal Roofing in Hillsdale, Oregon — Lifetime Interlock® Aluminum Shingles Installed Locally
Hillsdale Metal Roofing Experts Installing Lifetime Interlock® Aluminum Shingles Since 1997
Metal Roofing Built for Hillsdale's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection
Interlock Metal Roofing (PNW) Inc. is Hillsdale, 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 for the Pacific Northwest’s unique climate. Our heavy-gauge, fire-resistant roofs are engineered to withstand Hillsdale’s wet winters, heavy rains, and occasional snow, providing superior snow-shedding and long-term protection against moss, leaks, and wind. Choose from slate, cedar shingles, shake, Mediterranean tile, or standing seam profiles—all protected by the advanced Alunar® Coating System and backed by a Lifetime Warranty. For energy-efficient, cool roof solutions and expert roof replacement or re-roofing in Hillsdale, trust Interlock Metal Roofing (PNW) Inc. to safeguard your home with the best roof for Oregon’s weather.

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
- Interlocking aluminum panels tested to 120+ mph (193+ km/h) provide wind resistance for Hillsdale roofs during severe storm gusts.
- 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 color retention and enhanced corrosion resistance in Hillsdale’s damp conditions.
- Built to withstand atmospheric rivers and prolonged winter rains that affect Hillsdale, minimizing water intrusion and rooftop moisture retention.
- Resists marine-influenced salt exposure that can reach inland areas of Multnomah County, reducing corrosion risk from occasional salt spray.
- Limits moss and algal buildup common to Hillsdale’s shaded, moisture-prone roofs—reducing cleaning frequency and roof degradation.
- Class A fire-rated available to address seasonal dry spells and ember-risk concerns for homes across Multnomah County.
- UL 2218 Class 4 impact resistance for protection from hail, falling branches, and neighborhood storm debris.
- Snow-shedding panel geometry helps reduce accumulation and lowers ice-dam risk during occasional freeze–thaw cycles.
- Reflective, energy-efficient finish reduces heat gain during regional heat waves, improving attic comfort and lowering cooling loads.
- Engineered for compatibility with bracket-mounted photovoltaic systems so Hillsdale homeowners can add rooftop solar without compromising the roof.
- Corrosion-proof aluminum construction is fully recyclable, supporting sustainability goals for environmentally conscious residents of Hillsdale and Multnomah County.
- Low-maintenance finish and interlocking design extend service life well beyond asphalt shingles in high-moisture Oregon climates.
- Precision manufacturing and certified installer network ensure consistent fit, watertight performance, and neat curb appeal for Hillsdale properties.
- Backed by a Lifetime-Limited transferable warranty to protect long-term ownership and resale value for homes in Hillsdale.
Metal roofing built for Hillsdale'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 Hillsdale, Oregon
Interlock® Aluminum Roofing — all-climates performance specs for Hillsdale, 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 Hillsdale, Oregon:
Explore all Interlock® metal roofing systems, or see the Guardian lifetime warranty and independent testing reports.
Recent Interlock® roofs across Oregon
Deep Charcoal Cedar ShingleCloverdale, OR
Deep Charcoal Cedar ShingleCloverdale, OR
Deep Charcoal Cedar ShingleCloverdale, OR
Deep Charcoal Cedar ShingleCloverdale, OR
Deep Charcoal Cedar ShingleCloverdale, OR
Deep Charcoal Cedar ShingleCloverdale, OR
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Completed Interlock® metal roofs near Hillsdale, OR
Every marker is a real, anonymized Interlock® aluminum roof completed by a Certified Interlock Installer. Explore verified Interlock® installations near Hillsdale, 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 Hillsdale on the interactive project map →Browse all Interlock® projects in Oregon →See more Interlock® projects →
What our customers are saying:
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
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 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.
Interlock Roofing installed an excellent metal roof on our house. It looks amazing and will last for years! The installer, Victor, was very professional and did a great job. He explained the work being done and even replaced a worn board on the garage. This product is definitely worth every penny! Positive Responsiveness, Punctuality, Quality, Professionalism, Value Services Attic venting, Roof inspection, Roof installation
Beautiful roof, replaced 44-year-old concrete tile. Installers showed up when scheduled, were conscientious and knowledgeable. They were hardworking, even in difficult cold weather. Communication was challenging while waiting our turn, but this was addressed. Ten stars for all of you!PositiveResponsiveness, Punctuality, Quality, Professionalism, ValueServicesRoof installation
Interlock Roofing installed a metal roof on our family home and it looks amazing. It has held up to extremely high rainfall so far. The crew that installed my roof was very professional and polite. I would recommend Interlock Roofing if you are in the market for a new roof.PositiveResponsiveness, Punctuality, Quality, Professionalism
It has now been nearly six months since our Interlock roof installation, and we couldn't be happier with it. We debated getting a metal roof due to the greater upfront costs relative to a standard composite roof, but we're not planning on going anywhere anytime soon, so the peace-of-mind of a lifetime roof -- knowing we won't have to do this again, and that the company stands behind the product the way they do -- makes it worthwhile. The installation crew was professional, and their customer service has been responsive when needed. Neighbors have commented too on how good our roof looks! Recommended! Positive Responsiveness, Quality, Professionalism Services Roof installation
At the recommendation of a neighbor, we chose Interlock Roofing and we couldn’t be happier. We’ve been homeowners for 40+ years and fortunately have never had to worry about a roof, as our houses were new, and we moved somewhat frequently. Then two years ago we bought a second home on the Oregon Coast and knew we would have to replace the roof within a few years. Until finding out about Interlock, I fretted about having it replaced. So, after having our second home’s roof replaced, I asked Damon to inspect our main, 16-year old house in Portland. He thought it had anywhere from 2 to 5 years life in it, but we opted to have it replaced for three reasons. First, why wait for a leak, second, because the warranty is going to outlive me and finally…it will never be cheaper. The roof is absolutely beautiful and is the envy of the neighborhood. Dealing with Interlock has been such a pleasure on ALL fronts. The communication throughout the process was flawless. They did everything and more that was promised. Very few products and services have ever impressed me more. ">" alt="Interlock Aluminum Shake Roof - Portland, Oregon USA" width="1500" height="1124" />
We are thrilled with the quality and look of the roof! The installers are true craftsmen of their trade and were so polite and courteous. Nothing negative to say. The sales rep that came to our home was sure a top notch sales rep for your company. Mike Rasmussen was very impressive with his knowledge and ability to make you understand. We had four estimates prior to Interlock roofing and had pretty much made a decision prior to Mike coming to our home. I was going to cancel the appoitment with Mike but felt it would be rude to do so on the same day so we kept the appoitment. So glad we did !!! Mike did an amazing job at showing all the advantages of Interlock roofing compared to ordinary roofing. Best decision we could have made for our home and ourselves! Now comes the only part we were not pleased with and feel you could greatly improve. We were promised a start date of absolutely no later then Sept. 14th. No materials had been delivered or no communication from Interlock had occured and it was Sept. 12th. I made a phone call and was informed the roofing material had not been delivered yet and the new start date would be Sept. 21st. Why we had not been kept in the loop on that I am not sure. The morning of the 21st I receive a phone call from Roland Stark saying an employee called in sick and they would be starting the next day on Tuesday the 22nd. Tuesday the 22nd I receive a phone call from Roland Stark that the employee called in sick again and they will begin the next day Wed. the 23rd. I questioned why you could not begin the tear off without him and was told he was the lead guy. During the sales process we were informed that all of your installers have been with you for many years. I believe Mike said at least 14 years. But I could be wrong on that. Maybe he said 13 years. I was confused why tear off could not begin with that kind of experience. Roland said at the latest they would start Friday and his crew promised they would work Sat. and Sunday both to complete the job. We were promised job completion Sunday the 27th at the latest. Sat. the 26th is the actual day the men showed up to begin on the roof. The men showed up prompt and begun work immediately. Very professional and hard working. I was impressed. As they wrapped up for the evening to leave I said, " See you tomorrow." They looked a little confused and replied, " We will be back on Monday as we have worked all week and are going home to see our wives and kids." Completely understandable except Roland told us they had been home sick all week. Official finish date was Sept. 30th. Roland needs to be more honest and upfront about the scheduling. It was very frustrating and was the only negative thing about the whole experience. We had Leaf Filter gutters and also Lifetime Exteriors(new siding) both scheduled to begin work the day following the roof project. Each time Roland promised a new date these two businesses had to be contacted and they would re-schedule their crews. Very frustrating for both us and them.You requested where Interlock could have improved, therefore I gave you an honest answer. But I am keeping that between your company and us. The negative scheduling part that is. When asked how we like our new roof we respond with," Best decision we ever made for our home. We love it and could not be happier!!!! If we had it to do over again we would certainly choose Interlock Roofing." Have NO REGRETS. LOVE the roof.
We’ve had our roof for about 7 years and have been very pleased with it. Recently, I scheduled gutter cleaning which was complicated by a run of wet weather which makes the roof very slippery. The gutter contractor asked if we had ever considered installing safety anchors. I didn’t know there was such a thing. I called Interlock and Ivan came by to take a look. He quickly determined appropriate locations for the anchors that the gutter cleaners could clip their safety harnesses to and showed me an example of the anchor itself. He also offered to paint them black to make them more inconspicuous on our dark roof. He returned about a week later for the install and afterwards showed us pictures of the anchors from the roof and pointed them out from the ground. Overall very professional, prompt, excellent service.
We love our roof! Interlock was wonderful to work with. Very knowledgable and helpful throughout the whole process. The team that installed were amazing and did amazing work. They cleaned up everything in a timely manner. One feedback I would have is giving more updates on when the project was slated to be started, originally was schedule during our vacation and we didn't know til a few days before we left. Overall we are very please and cant wait to never change our roof again!
Nearby service areas in Multnomah County
Interlock® metal roofing is also installed in these communities near Hillsdale:
Interlock Metal Roofing (PNW) Inc. also services nearby States
Beyond Hillsdale, our team installs Interlock® metal roofing across:
Metal Roofing FAQs for Homeowners in Hillsdale
The following metal roofing FAQs are designed specifically for homeowners in Hillsdale, 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 Hillsdale.
How does a metal roof handle Hillsdale's snow and ice buildup?
Interlock's four-way interlocking aluminum panels shed snow efficiently because the smooth surface resists ice adhesion and the lightweight design—around 0.41 lb/sq ft for the Shingle profile—requires zero structural reinforcement even in heavy snow years. Hillsdale averages about 48 cm of snow annually across roughly 36 freeze-thaw days, creating ideal conditions for a low-profile metal roof that won't trap meltwater. You can add snow guards if desired, but the sloped design naturally sheds rather than accumulates.
Will a metal roof rust in Oregon's wet climate?
No. Interlock roofs use roofing-grade 3105-H24 aluminum alloy, which contains no iron and therefore cannot rust—even in Hillsdale's 1468 mm of annual rainfall. Aluminum develops a transparent oxide layer that self-heals when scratched, protecting the core indefinitely. The Alunar 70% PVDF fluorocarbon finish on both sides adds a 30-year warranty against chalking and fading, giving you two independent layers of corrosion defense in a high-moisture environment.
Can a metal roof withstand Hillsdale's wind gusts?
Yes. Interlock panels are warranted to resist sustained winds up to 120 mph when installed to specification, well above the typical 116 km/h gusts Hillsdale experiences. The four-way interlocking design locks each panel to its neighbors on all edges, distributing wind load across the entire roof assembly rather than concentrating stress on individual fasteners. This proven interlocking geometry has secured installations from coastal salt-air homes to an Antarctic research station since 1998.
Does a metal roof hold up to hail, and can I get an insurance discount?
Interlock achieves UL 2218 Class 4 impact rating—the highest available—and the warranty covers perforation from hailstones up to 1.5 inches. Many insurers offer discounts for Class 4 impact resistance. Because aluminum's resilience and durability reduce claim frequency, contact your agent with Interlock's ICC-ES evaluation report ESR-1790 and UL 2218 certification to discuss available savings in your area.
Can a metal roof actually reduce cooling costs in Oregon?
Interlock's energy-efficient colors reflect significant solar heat rather than absorb it like asphalt shingles do. Rated colors achieve thermal emissivity of 0.84 and initial solar reflectance up to 0.55, which directly lowers cooling demand during Hillsdale's 2957 annual sunshine hours. Cool Roof Rating Council certification confirms the heat-reflection benefit. Over a 50-year lifespan, the energy savings compound substantially and improve your home's resale appeal to buyers focused on utility costs.
How does the interlocking design prevent leaks in heavy rain?
Water cannot penetrate four-way interlocking seams because each panel overlaps its neighbors on all four edges—top, bottom, left, and right—creating a labyrinth that sheds water downslope. Hillsdale receives about 1468 mm of rain annually, testing any roof's integrity. When installed over solid decking with underlayment and to spec, Interlock's mechanical overlap system (verified in ICC-ES ESR-1790) handles any rainfall rate without relying on sealants that degrade over time.
Can you install a metal roof over my existing shingles in Hillsdale?
Yes. Interlock's extraordinary light weight—the Mediterranean Tile profile is about 96% lighter than concrete or clay tile—means most existing roof structures can support a new Interlock installation without reinforcement. Your local installer, Interlock Metal Roofing (PNW) Inc., has served the region since 1997 and can evaluate your existing deck during a site visit. Installing over existing materials eliminates tear-off labor and landfill costs, accelerating your timeline and reducing disruption.
What warranty comes with an Interlock metal roof?
The Guardian is a lifetime limited, non-prorated material warranty for the original owner, covering rusting, rotting, splitting, cracking, curling, and loss of impact resistance. It's transferable once to the next owner, who receives a 50-year term from completion—a substantial advantage when selling. Combined with the 30-year Alunar coating warranty (ASTM D4214/D2244) and UL 2218 Class 4 impact rating, you're protected across every failure mode for decades.
Is a metal roof more environmentally responsible than asphalt?
Interlock aluminum is approximately 95% recyclable at end of life, eliminating the asphalt tear-off-to-landfill cycle that costs money and environmental resources. Manufactured in Delta, BC since 1998, each panel can be melted and reformed infinitely without degradation. Given Hillsdale's 1468 mm annual rainfall and 36 freeze-thaw days, asphalt shingles typically fail in 15-20 years, but Interlock lasts 50+ years with a single installation, dramatically reducing material consumption over time.
What architectural styles can an Interlock metal roof replicate?
Interlock offers five profiles: Slate, Cedar Shingle, Shake, Mediterranean Tile, and Standing Seam, each manufactured from the same roofing-grade aluminum. The Slate profile suits modern and traditional homes, Cedar Shingle and Shake appeal to classic designs, Tile complements Mediterranean and Spanish colonial aesthetics, and Standing Seam works for contemporary or industrial looks. All profiles carry identical durability—ICC-ES ESR-1790, UL 2218 Class 4, 120 mph wind warranty—so your choice is purely architectural, not a durability trade-off.
Is a metal roof a good choice for Hillsdale’s climate?
Yes. Hillsdale 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.





