Metal Roofing in Washington Park, Illinois — Lifetime Interlock® Aluminum Shingles Installed Locally
Washington Park 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 Washington Park's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection
Interlock Metal Roofing is a trusted metal roofing contractor and the exclusive authorized installer of the Interlock® Lifetime Aluminum Roofing System serving homeowners in Washington Park, Illinois (Cook County) since May 17, 2001. Our roof replacement and re-roofing services deliver heavy-gauge, fire-resistant, energy-efficient cool roofs engineered for performance, beauty, and durability—designed to shed heavy Midwest snow, resist freeze‑thaw and storm damage common to Cook County, and reduce summer heat gain in hot, humid months. Choose the timeless look of slate, cedar shingles, shake, Mediterranean tile, or standing seam with the long‑term protection of metal; every Interlock roof for Washington Park homes is protected by the Alunar® Coating System and backed by a Lifetime Warranty.

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
- Aluminum is coated with the Alunar® Coating System (no visible aluminum surface) for durable, low-maintenance finishes suited to Washington Park roofs
- Precision weatherproof seams (profiles: slate, cedar, shake, tile) and mechanical fastening (profile: standing seam) deliver long-term leak protection during wind-driven rain events
- Interlocking panel system tested to 120+ mph (193+ km/h) to resist severe wind gusts that affect Cook County and Washington Park residences
- Designed for heavy snow loads and rapid snow-shedding to minimize buildup on Washington Park homes and reduce structural stress
- Resilient to frequent freeze–thaw cycles in the Chicago metro area—seams and fasteners limit thermal movement and fatigue in Cook County climates
- Corrosion-resistant aluminum finish withstands humid summers, road-salt exposure near local thoroughfares, and urban atmospheric contaminants in Washington Park
- UL 2218 Class 4 impact resistance for protection against hail, falling branches, and storm debris common during Illinois storms
- Class A fire-rated available to address fire-safety concerns and local code or insurance considerations in Cook County neighborhoods
- Cool-roof performance reduces attic heat gain during Midwest heat waves and improves summer comfort and HVAC efficiency in Washington Park homes
- Solar-compatible system engineered for bracket-mounted photovoltaic arrays without compromising roof weatherproofing or warranty coverage
- Lightweight aluminum panels lower dead load on typical residential framing while meeting structural expectations for Washington Park properties
- Standing-seam mechanical fastening option provides concealed fasteners and elevated uplift resistance for wind-prone Cook County locations
- Low-maintenance finish and tight interlocks inhibit biological growth and moss in shaded, humid microclimates found on some Washington Park roofs
- Engineered waterproofing details manage heavy spring/fall rains and localized ponding to protect roofs through Cook County storm events
- Fully recyclable aluminum supports sustainability goals for Washington Park homeowners and reduces lifecycle environmental impact
- Backed by a Lifetime-Limited transferable warranty to protect long-term value and provide assurance for Washington Park property owners
Metal roofing built for Washington Park'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 Washington Park, Illinois
Interlock® Aluminum Roofing — all-climates performance specs for Washington Park, 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 Washington Park, 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 Washington Park, IL
Every marker is a real, anonymized Interlock® aluminum roof completed by a Certified Interlock Installer. Explore verified Interlock® installations near Washington Park, 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 Washington Park 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 Washington Park:
Interlock Industries (Midwest) Inc. also services nearby States
Beyond Washington Park, our team installs Interlock® metal roofing across:
Metal Roofing FAQs for Homeowners in Washington Park
The following metal roofing FAQs are designed specifically for homeowners in Washington Park, 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 Washington Park.
Does metal roofing handle heavy snow and ice better than asphalt shingles?
Yes. Washington Park receives about 73 cm of snow annually, and metal's smooth, non-porous surface sheds snow and ice far more effectively than asphalt, which absorbs moisture and becomes brittle through the area's roughly 69 freeze-thaw cycles per year. Interlock's four-way interlocking aluminum panels bond so tightly that water cannot pool between them, eliminating the ice dam formation that damages asphalt roofs. The ultra-light weight—the Shake profile at 0.58 lb/sq ft—means snow load poses no structural concern, and the panels' durability through freeze-thaw cycling is guaranteed under The Guardian warranty.
Will a metal roof crack or fail from freeze-thaw cycles like wood or slate?
No. Aluminum has a completely different failure mechanism than wood, stone, or asphalt. It expands and contracts uniformly, cannot absorb water into a matrix (wood and tile do), and therefore cannot split when water freezes inside it. Washington Park experiences roughly 69 freeze-thaw days annually with about 1024 mm of rain, yet aluminum's self-healing oxide layer and ASTM B209-compliant 3105-H24 alloy respond to this cycling by forming a protective barrier that strengthens over time. The Guardian warranty covers splitting, cracking, and curling—risks you face with traditional materials in this climate.
Can aluminum roofing rust in a wet climate like Washington Park?
Aluminum cannot rust because rust requires iron, which aluminum does not contain. Your roof will never develop the orange staining, structural weakening, or perforation that steel roofing suffers in climates like Washington Park's, where 1024 mm of annual rainfall and freeze-thaw stress accelerate corrosion. Instead, aluminum naturally forms a self-healing oxide layer that actually strengthens when scratched. Interlock's Alunar 70% PVDF fluorocarbon finish—applied to both sides and warranted 30 years against fading—adds an extra corrosion barrier. This is why Interlock panels have been installed from salt-air coastlines to Antarctica since 1998.
How does metal roofing perform in Chicago-area wind and storms?
Interlock's four-way interlocking panels resist wind speeds up to 120 mph when installed to specification—well beyond the gusts of about 95 km/h typical in Washington Park. The mechanical bond between adjacent panels means no single panel can lift or peel; wind must overcome the entire roof system at once, a virtually impossible task. The four-way interlock design also distributes lateral forces across the roof rather than concentrating them at fasteners, which is why the panel design earns UL 2218 Class 4 hail impact rating and why the warranty explicitly covers wind resistance. Your neighbors' shingles may lift in a strong gust; yours will not.
Will a metal roof reduce my homeowner's insurance premium?
Many insurers offer discounts for roofs rated UL 2218 Class 4, the highest impact classification available. Interlock's aluminum panels meet this standard and are even warranted against perforation from hailstones up to 1.5 inches—a level of protection asphalt and wood cannot match. Because hail risk exists throughout Illinois, and because impact resistance directly affects claim frequency, contact your insurer with the UL 2218 Class 4 rating to inquire about available discounts. The warranty's non-prorated lifetime coverage for the original owner also means you'll never pay to replace hail damage yourself, making the true insurance value extend far beyond the policy itself.
Can I install a metal roof over my existing asphalt shingles without reinforcing the roof structure?
Yes, because Interlock's weight makes structural reinforcement unnecessary. The Mediterranean Tile profile, which replicates the heaviest traditional roofing material, weighs just 0.59 lb/sq ft—approximately 96% lighter than actual clay or concrete tile. Compared to asphalt's typical 2–3 lb/sq ft, aluminum actually reduces the load on your home's framing. This light weight is why Interlock installs directly over existing roofs in most cases, eliminating the costly and disruptive tear-off that asphalt requires. Washington Park homes built in the 1960s through 1990s often have frames designed for light roofing, making this advantage particularly valuable.
How much maintenance does a metal roof really need compared to asphalt or wood?
Virtually none. Asphalt shingles require inspection after every significant wind or hail event, have granule loss accelerated by Washington Park's 69 annual freeze-thaw cycles, and must be replaced within 15–20 years. Wood shakes split and curl in the same cycles, and slate or tile require periodic mortar or fastener repair. Interlock's aluminum panels require only occasional gutter cleaning and visual inspection—no sealant reapplication, no granule replacement, no splitting repair. The Alunar finish is rated CALGreen-verified for reduced maintenance; the 30-year coating warranty against chalking means your color stays true even after 3000+ hours of Washington Park's annual sunshine without intervention.
Is a metal roof worth the upfront cost over the lifetime of my home?
Yes. A typical asphalt roof costs less initially but requires replacement every 15–20 years; over 50 years, you'll buy it three times. Interlock's lifetime limited warranty (non-prorated for the original owner, transferable to the next owner for 50 years from completion) means you install it once. The transferable warranty also adds real resale value—the next owner inherits decades of remaining protection. Factor in zero maintenance costs, no tear-off disposal fees, and the 95% recyclability of aluminum at end-of-life, and the true cost per year of ownership drops well below asphalt. Add potential insurance discounts for UL 2218 Class 4 impact rating, and metal becomes the financially rational choice over a roof's lifetime.
Can a metal roof look like slate, wood shake, or clay tile?
Yes. Interlock manufactures five profiles: Slate, Cedar Shingle, Shake, Mediterranean Tile, and Standing Seam, each designed to replicate traditional materials with dimensional texture and authentic shadow lines. Each profile uses the same roofing-grade 3105-H24 aluminum alloy and Alunar 70% PVDF fluorocarbon finish, so your choice of appearance carries no penalty in durability or warranty. Whether you choose the refined look of Slate, the rustic warmth of Shake, or the Old World character of Mediterranean Tile, you receive identical four-way interlocking panels, Class A fire rating availability, and 120 mph wind warranty. Your aesthetic preference does not compromise performance in Washington Park's climate.
Will a reflective metal roof actually lower my cooling costs in the Chicago area?
Yes. Interlock's energy-efficient colors achieve thermal emissivity of 0.84 and initial solar reflectance up to 0.55 (Aged Copper Penny), meaning they reflect heat that dark asphalt absorbs and re-radiates into your home. Cool Roof Rating Council testing confirms this benefit. While Washington Park averages about 3094 sunshine hours per year—less intense than southern climates—the cumulative effect over a summer season still reduces cooling load, especially in the upper floors directly beneath the roof. Metal's light color also stays cooler during winter's 73 cm of snow melt, reducing thermal cycling stress. The energy savings may be modest in a northern climate, but combined with zero maintenance and 50+ year lifespan, they add to the total value proposition.
Is a metal roof a good choice for Washington Park’s climate?
Yes. Washington Park 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.





