Metal Roofing in Wrigleyville, Illinois — Lifetime Interlock® Aluminum Shingles Installed Locally
Wrigleyville Metal Roofing Experts Installing Lifetime Interlock® Aluminum Shingles Since 2001
What do Interlock customers in Illinois say?
Interlock has 279 published customer reviews from Illinois, covering installations reviewed between 2004 and 2026. They average 4.8 out of 5, with 262 collected through independent GuildQuality surveys. Interlock® Slate is the most frequently installed system in the region, appearing in 112 of these projects. Across the surveys that scored individual categories, salesperson punctuality rates highest at 4.9 out of 5.
Metal Roofing Built for Wrigleyville's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection
Interlock Metal Roofing is the trusted metal roofing contractor and local installer serving homeowners in Wrigleyville, Illinois (Cook County); founded May 17, 2001, we are the exclusive authorized installer of Interlock® Lifetime Aluminum Roofing Systems engineered for performance, beauty, and durability. The Interlock Lifetime Roofing System is ideal for Wrigleyville’s climate—heavy-gauge, fire-resistant aluminum sheds snow and ice on freeze‑thaw cycles, stands up to lake‑effect storms and high winds, and functions as an energy‑efficient cool roof to reduce summer heat gain—while delivering the timeless look of slate, cedar shingles, shake, Mediterranean tile, or standing seam with the strength of metal. We provide expert roof replacement and re‑roofing services throughout Wrigleyville, and every Interlock roof is protected by the Alunar® Coating System and backed by a Lifetime Warranty for lasting protection and curb appeal.

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
Freeze–Thaw Durable
Endures ~69 freeze–thaw days a year
Rain & Moisture Proof
Repels ~1024 mm of rain a year
Impact Resistant
UL 2218 Class 4 — top hail rating
- Available through authorized Interlock® installers serving Wrigleyville homeowners and Cook County properties
- 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 coated with the Alunar® Coating System (no visible aluminum surface) for durable finish and color retention
- Tested to 193+ km/h (120+ mph) for resistance to severe wind events common along Chicago’s lakeshore corridors
- Standing-seam mechanical fastening profile minimizes uplift and provides secure attachment under high-wind gusts
- Snow-shedding metal panels reduce roof loading and help prevent ice dams during Lake Michigan-driven snow events in Wrigleyville
- Built to resist accelerated wear from repeated freeze–thaw cycles that occur across Chicago’s seasonal temperature swings
- Engineered to tolerate heavy, wet snow and the localized drift loads found on urban roofs in Cook County
- Class A fire-rated available for added protection in dense urban neighborhoods and attached structures
- UL 2218 Class 4 impact resistance for protection against hail, falling branches, and common storm debris
- Cool-roof performance lowers attic temperatures during summer heat spells and improves year-round HVAC efficiency
- Designed for solar compatibility with modern bracket-mounted photovoltaic systems used on Chicago homes
- Fully recyclable aluminum construction supports long-term sustainability goals for Wrigleyville homeowners
- Architectural profiles replicate slate, cedar shake, and tile while offering the performance of metal for city curb appeal
- Low-maintenance finish resists moss and organic growth in shaded, moisture-prone pockets typical of mature Wrigleyville streets
- Backed by a Lifetime-Limited transferable warranty to protect Cook County homeowners and preserve property resale value
Metal roofing built for Wrigleyville's climate
Averages (10-yr): ~1024 mm rain and 73 cm snow per year, ~3094 sunshine hours, mean 10.5°C, typical daily-max winds ~25 km/h with gusts to 95 km/h, and ~69 freeze–thaw days per year.
- 73 cmavg. snow / year
- 1024 mmavg. rain / year
- 69freeze–thaw days / year
- 95 km/hpeak wind gusts
- 3094 hrsannual sunshine
- 10.5°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 Industries (Midwest) Inc.
- 205 North Michigan Avenue, Suite 810, Chicago, IL 60601, United States
- Phone 872-259-4486
- Sales & Marketing [email protected]
- Toll-Free 1-866-733-5811
- Customer Service [email protected]
- www.ChicagolandMetalRoofing.com
- Also midwestmetalroofing.com
- License IL #104.013389
- EPA Lead-Safe Certified Firm #NAT-F224594-2
- Serving Illinois since 2001 — 25 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 Chicago is a trusted metal roofing contractor proudly serving homeowners and businesses throughout the greater Chicago metropolitan area. Backed by decades of manufacturing and installation expertise, 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 Metal Roofing Chicago provides exclusive lifetime roofing products engineered to perform in Illinois’ demanding climate — from heavy snow and ice buildup to high winds, hail, summer heat, and dramatic seasonal weather shifts. Built on integrity, professionalism, and superior workmanship, Interlock Metal Roofing has completed thousands of successful roofing installations across North America, helping Chicago-area property owners invest in roofing systems that are both beautiful and built to endure. Our team is known for transparent communication, efficient project execution, and meticulous installation standards, supported by industry-leading materials and comprehensive warranty protection. Interlock’s commitment to excellence is reflected in its dedication to safety, continuous installer training, and strong customer satisfaction throughout the region. With highly trained crews and strict adherence to best practices, we deliver durable, energy-efficient roofing solutions that enhance curb appeal, increase property value, and provide decades of dependable protection against Chicagoland’s harsh winters and severe storm conditions. Whether you need a residential metal roof replacement, a commercial roofing upgrade, or a custom architectural metal roofing system, Interlock Metal Roofing Chicago is the 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 Wrigleyville, Illinois
Interlock® Aluminum Roofing — all-climates performance specs for Wrigleyville, Illinois
| 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 Wrigleyville, Illinois:
Explore all Interlock® metal roofing systems, or see the Guardian lifetime warranty and independent testing reports.
Recent Interlock® roofs across Illinois
Colonial Brown Cedar ShingleLa Grange, IL
Colonial Brown Cedar ShingleLa Grange, IL
Deep Charcoal Standing SeamCarpentersville, IL
Deep Charcoal Standing SeamCarpentersville, IL
Deep Charcoal Standing SeamCarpentersville, IL
Deep Charcoal Standing SeamCarpentersville, IL
Black Standing SeamWoodstock, IL
Black Standing SeamWoodstock, IL
Completed Interlock® metal roofs near Wrigleyville, IL
Every marker is a real, anonymized Interlock® aluminum roof completed by a Certified Interlock Installer. Explore verified Interlock® installations near Wrigleyville, Illinois, 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 Wrigleyville on the interactive project map →Browse all Interlock® projects in Illinois →See more Interlock® projects →
What our customers are saying:
Last summer I realized I was in the need of a new roof on my old home which was built in 1876. I was hoping I could find a roof that accentuated the uniqueness and beauty of my old farm-style house. I always dreamed of owning a home with a metal roof, so I thought, well, let’s give this a look and see if it is an option. After searching for roofers and making some calls I found no one in my area offering metal roofs, needless to say, I became discouraged. Then, one day, on Facebook, I happened to see an ad with Midwest Roofing/Interlock Roofing showing the exact type of roof I was looking for!! I was so excited and called the number and was able to have an appointment arranged that very weekend. John came out, did some measuring, got up in my attic, then we sat and had a long, very informative discussion. John was extremely patient with my numerous questions and was able to explain things to me in layman’s terms, as I am not adept in the construction business, at all. So, the nitty gritty…I was originally thinking standing seam going into this whole project but then out came the slate look and oh my, that was it…The roof I had been looking for. It was exactly what needed to be on top of my house!!! And the black color just spoke to me…. John agreed!! Nowhere else had I ever seen a roof like the one I was about to have put on my beloved home. So, the price, while I knew a metal roof was going to cost more, I was looking more for security and peace of mind. I am a single parent of a child on the autism spectrum. I knew that I did not want to deal with roof issues in the future, the struggle to get a roofer to come to fix their problem, and the thought of having to replace it all over again just a few years down the road. Nope, the extra cost of this one-and-done roof was well worth it to me…after all, how do you put a price tag on peace of mind? And there aren’t many things in this world nowadays that can give you that. So, I signed the contract… The delivery…. how exciting…all these boxes lined up in my driveway…it was getting real!! Installation begins. Never in my lifetime have I met such an amazing installation crew, headed by Jesse. These guys worked tirelessly on transforming my average-looking home into the WOW home on the block. They took great care in working around my cupola and rock chimney, making sure everything was sealed where it needed to be, even reinforcing the cupola as it had been up there for so many years. These guys are not just installers, they are truly artists, and the pride in what they do shines in their workmanship. Even the care in the cleanup was amazing…very impressed. Any company can put out an amazing product, but for that product to remain amazing, that company has to have professional team members working with the customers…that is what you will get if you go with Interlock. Not just a stand-out product but a stand-out crew from sales, scheduling, and installation…it’s the whole package.
The roof is gorgeous, best money ever spent. Chuck was great at explaining the system. Allen was a true pleasure to work with and there are no words to describe the excellent job Jesse and his wonderful crew did. I am truly impressed beyond belief with Interlock.
We had replaced one roof in the time we had owned our home, and now it was time for the second replacement. I began to wonder if there were any alternatives to old asphalt technology. Also, we had two concerns about asphalt, the first is that it is not clean from an environmental standpoint and second, asphalt is oil based which means its cost is linked with the price of oil. I noticed that many commercial buildings had metal roofs. My wife and I usually do a lot of deep research for major home projects. We began looking into the possibility of replacing the current roof with metal. Our research indicated that there were residential metal roofs available in various metals and styles. Four factors need to be considered. Type of metal. We chose aluminum over steel. It’s lighter and less susceptible to corrosion, although corrosion is not a major factor due to the various coatings and treatments applied to both metals during the manufacturing process. Structural assembly. We liked the Interlock method of attaching the panels to each other and the roof base. When complete, the system is structurally sound and waterproof. Installation process. Installing a metal roof requires experience. Installation is different from that of an asphalt roof. During our research, we had a hard time locating installers that had experience installing residential metal roofs. This was another reason that we chose Interlock. They are associated with installation crews who have the knowledge and experience required for working with the Interlock product. The only other factor to consider is the style and color, and there are many to choose from. Installation was uneventful, the crew was courteous, and they explained exactly what they were doing and answered any questions that we had. The roof looks beautiful, and we have had many compliments on it since it was installed two weeks ago. We are very happy that we chose Interlock for this project and highly recommend them.
Our new roof is beautiful! We have received so many compliments and inquiries since our Interlock roof was installed four weeks ago. John delivered on his promise with a quality product and set up the stage for what was to come, answering all our early questions and showing us the information we were looking for to make a confident decision. He provided us with installation pictures of previous jobs, the product specifications, color and type of samples, historical data on product performance and much more. Dal from customer service responded quickly with dates when the material was arriving and dates for the installation. After some concerns about having to travel for work and being out of town, Al communicated well, and they worked around my travel schedule my family appreciated this greatly. The roof is not any louder during several of the storms we have had already than before. Despite a few outside temperatures reaching the 80s and sunny, the inside of the house has stayed cool without needing to turn on the AC or ceiling fans. It really is a new experience to walk into our second-level rooms and not have it feel warmer than the lower level. The installation crew did a great job. They told us everything they were doing and answered all of our questions. The fire department even stopped by during the installation to ask what it was! The crew completed the job in 4 days, working over the weekend to finish before the next storm. They left the yard clean every night, and they cleared out the gutters from all of the debris. After watching the team install the new roof safely, we have come to appreciate the craftsmanship that comes with installing this type of roof. The crews are proud of the product, and their care shows in the installation. Putting on this new roof requires a lot of skill, a lot of hours, and experience that I think new owners won’t realize until observing them and going through it. Minimal waste scraps, efficiently making thousands of measurements and metal shaping to perfectly fit all the corners and bends is a testament to the experience our crew, led by Jesse and Sal, had. This Interlock company has been great and there have been so many people referenced here that have worked to provide us a great customer experience. To the whole team, great job, and thank you. We look forward to the many years this roof will continuously perform as it was designed and the many more times we will appreciate the beauty of it.
The process was seamless, it was a no-headache, no-hassle experience and the roof looks amazing. The team was fast, respectful, and really took the time to make sure we understood everything that was going on. They were very safe and considerate of my dogs going in and out of the backyard, and took extra time to clean up everything each day, and especially when they finished the job. And not a single plant damaged (which is amazing, because they are planted right up next to the house)! They were friendly and communicative, and took care of everything. It was a great experience, and we now have the most beautiful roof on the block. I think the scheduling team could have been a little bit more proactive in terms of communication in the time between the signing of the contract and the installation, but obviously it all worked out just fine, so they clearly were doing everything they needed to be doing scheduling-wise, and it ultimately didn't influence the experience all that much, especially since John Mondschean (sales) was so accommodating and communicative throughout the process. There have been a lot of new roofs going on in my neighborhood since the big double hailstorm last year, and I can confidently say that ours is the most beautiful, and the team that installed it was the cleanest and most considerate. There was not a single piece of plastic, nail, etc. left behind after they were done, and they were pretty quiet throughout the process, which was important to me as I work from home.
Interlock Metal Roofing is an amazing company to do business with. My salesperson John was professional and knowledgeable. It is a big investment, but absolutely worth it. The installation crew was on time, hardworking and conscientious. I highly recommend this company to anyone who wants a roof to last 100 years!
I love the outcome of the roof. It is absolutely beautiful. They were professional when they did the install. They don't need to improve. They are doing an excellent job.
I just want to say the Interlock team did an excellent job installing my roof. The installation team were craftsman, cordial, punctual, and they did a great job of keeping the work site clean at the end of each day. As far as the roof I love the look of the black standing seam with the dark gray Hardie Board siding, and I can already tell that the roof is keeping my house and garage cooler.
Jesse was very professional and knowledgeable about the product. He answered any questions we had about the roof. It all went great! They could have kept me updated instead of me having to continually call for updates. They could have gave me a status but they didn't.
I'm really excited and pleased with the roof. I love everything about it in terms of color, style, and installation. Everything was done to our utmost satisfaction. Interlock Roofing could have improved the price. The price was expensive. It was a fantastic experience.
Areas where flashing needs to extend beyond a vertical surface i.e. chimney's, second story corners, you need a method to provide a more professional look when making cuts in aluminum siding. Happy with my decision to purchase a roof from Interlock. It looks great. Time will tell if it will perform as promised.
Communication could have been better prior to the project starting. They communicated wonderfully until we paid our down payment. Then communication ceased. There was no communication until we reached out to them expressing our concerns. Once the project started communication was phenomenal. The roof looks extraordinary. We have had some heavy rain and our roof has held up wonderfully and it is beautiful. We believe it is a better quality than others.
Nearby service areas in Cook County
Interlock® metal roofing is also installed in these communities near Wrigleyville:
Interlock Industries (Midwest) Inc. also services nearby States
Beyond Wrigleyville, our team installs Interlock® metal roofing across:
Metal Roofing FAQs for Homeowners in Wrigleyville
The following metal roofing FAQs are designed specifically for homeowners in Wrigleyville, Illinois. 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 Wrigleyville.
Will a metal roof hold up through Wrigleyville's freeze-thaw cycles?
Yes—aluminum's material properties actually improve in freeze-thaw conditions. Cook County experiences about 69 freeze-thaw days per year, a cycle that cracks asphalt and splits wood shingles. Aluminum expands and contracts uniformly without brittleness; the roofing-grade 3105-H24 / 3003-H24 alloy (ASTM B209) is designed for exactly this stress. The self-healing oxide layer resists corrosion even when thermal movement causes micro-scratches. Over 25+ years, homeowners here see asphalt failing at year 15–18, while Interlock panels weather the same cycles intact.
How does a metal roof handle Wrigleyville's snow and ice buildup?
The smooth, interlocking surface sheds snow and ice far more effectively than asphalt. Wrigleyville receives roughly 73 cm of snow annually, and metal's low friction allows heavy loads to slide safely with optional snow guards. The four-way interlocking design prevents water infiltration if ice dams form—a common problem in Cook County winters. The panels' light weight (Shingle profile at 0.41 lb/sq ft) means no structural reinforcement is needed, even as snow accumulates, keeping installation cost and complexity low compared to slate or concrete tile options.
Can a metal roof withstand Wrigleyville's wind gusts?
Absolutely. The four-way interlocking panels are warranted to resist wind speeds up to 120 mph (193 km/h). Cook County's typical gusts reach about 95 km/h, less than half that threshold. The inter-panel sealing and mechanical fastening distribute wind load across the entire roof system rather than stressing individual shingles. Insurance companies recognize this durability; many offer discounts for Class 4-rated metal roofs. This design outperforms asphalt shingles, which fail and lift at much lower wind speeds, particularly in spring storms common to the Midwest.
Why doesn't aluminum rust like steel roofing does?
Aluminum contains no iron—the element responsible for rust. When exposed to air, aluminum forms a thin, transparent oxide layer that actually protects the metal beneath. Critically, if this layer is scratched, it self-heals within hours. The Alunar 70% PVDF fluorocarbon finish (applied to both sides, warranted 30 years against chalking and fading per ASTM D4214 / D2244) adds a second protective barrier. In Wrigleyville's 1024 mm annual rainfall and freeze-thaw environment, this dual protection means zero corrosion risk over the roof's 50-year lifespan—a guarantee steel roofing cannot match.
Will my home's frame need reinforcement for a metal roof?
No structural reinforcement is required. The Mediterranean Tile profile, which replicates the look of clay or concrete tile, weighs just 0.59 lb/sq ft—approximately 96% lighter than the real thing. Even the heavier Shake profile tops out at 0.58 lb/sq ft. By contrast, traditional tile adds 15–20 lb/sq ft, forcing costly framing upgrades. Interlock's light weight also means installation can proceed over most existing roofs without tear-off, saving labor and landfill volume. This is especially valuable in Cook County homes where retrofitting older structures to support heavy materials would be prohibitively expensive.
What's the hail rating, and will my insurance recognize it?
Interlock panels carry the highest available hail rating: UL 2218 Class 4 impact resistance. The warranty covers perforation even from hailstones up to 1.5 inches—an extreme event. While Wrigleyville's climate data doesn't flag frequent severe hail, the Class 4 rating qualifies the roof for insurance premium reductions in many states. Underwriters reward non-combustible, impact-resistant materials because they reduce claims frequency. Some insurers offer 15–25% discounts on metal roofs with this designation, potentially recovering installation costs within 10 years. Contact your agent with the UL 2218 Class 4 specification and ICC-ES ESR-1790 documentation.
Does a metal roof actually save energy in Wrigleyville's climate?
energy-efficient colors with emissivity 0.84 and solar reflectance up to 0.55 (Aged Copper Penny) actively cool your home during warm months. Wrigleyville averages 3094 sunshine hours per year—enough for a reflective roof to reduce cooling costs noticeably. Unlike asphalt shingles, which absorb heat and drive interior temperatures up, metal reflects infrared radiation. The Cool Roof Rating Council certification means independent verification of these thermal properties. During the 73 cm snow season, the same reflective surface minimizes the greenhouse effect that accelerates ice melt and dam formation. Over 25 years, cooling savings often exceed the material premium.
How much maintenance does a metal roof require compared to asphalt or tile?
Metal requires virtually no maintenance. Asphalt shingles in Cook County's 69 annual freeze-thaw days and 1024 mm rain develop moss, granule loss, and cracking by year 12–15, requiring periodic cleaning and repairs. Concrete tile cracks and needs resealing every 5–10 years. Interlock aluminum sheds debris, resists algae growth, and never needs chemical treatment or re-coating. The CALGreen-verified design specifically targets reduced maintenance. Annual gutter cleaning is your only task. This translates to 25+ years of zero repair costs—a significant advantage when calculating true roof cost over time, especially important in Wrigleyville where moisture levels demand durable, low-touch solutions.
Can you install a metal roof over my existing shingles?
Yes, in most cases. The extraordinary light weight of Interlock panels (0.41–0.59 lb/sq ft) allows installation directly over existing asphalt roofs, providing immediate cost and waste savings. Your contractor inspects the existing deck for rot or structural damage; if sound, metal installs over it without tear-off. Installation typically completes in 1–3 days for a standard home. You avoid the labor, dumpster, and landfill fees of stripping old shingles—a meaningful savings in Cook County where disposal costs are high. The process also minimizes home disruption. For roofs with significant damage or previous patching, tear-off is recommended; your local Interlock installer since 2001 performs a free pre-installation survey to determine the right approach for your home.
Is metal roofing worth the upfront cost versus asphalt in the long run?
Yes. Asphalt averages $8–12/sq ft installed with a 15–20 year lifespan; you'll replace it twice in 40 years, paying $16–24/sq ft total plus tear-off labor. Interlock installed is higher upfront but includes a lifetime limited, non-prorated material warranty for the original owner—covering rusting, cracking, curling, and impact resistance—plus one-time transfer to the next owner (50 years from completion). Most homeowners recoup the material premium within the first roof's lifespan through eliminated replacements, zero maintenance, and energy savings. In Wrigleyville's harsh freeze-thaw and moisture environment, asphalt fails earlier, compressing payback further. This is truly the last roof you'll buy.
Is a metal roof a good choice for Wrigleyville’s climate?
Yes. Wrigleyville averages about 73 cm of snow, 1024 mm of rain, roughly 69 freeze–thaw days a year, with peak wind gusts near 95 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.





