Metal Roofing in Worthington Park, Wisconsin — Lifetime Interlock® Aluminum Shingles Installed Locally
Worthington Park Metal Roofing Experts Installing Lifetime Interlock® Aluminum Shingles Since 2001
Metal Roofing Built for Worthington Park's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection
Interlock Metal Roofing is a trusted metal roofing contractor and the exclusive authorized installer of Interlock® Lifetime aluminum roofing systems serving homeowners in Worthington Park, WI (Dane County). Founded May 17, 2001, we provide roof replacement and re-roofing throughout Worthington Park using heavy-gauge, fire‑resistant, energy‑efficient cool roofs engineered to shed heavy Wisconsin snow, resist freeze–thaw and ice‑dam damage, withstand high winds and UV exposure, and reduce summer heat gain. Choose the timeless look of slate, cedar shingles, shake, Mediterranean tile, or standing seam with the long‑term protection of metal—each roof finished with the Alunar® Coating System and backed by a Lifetime Warranty for local performance, durability, 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 ~81 freeze–thaw days a year
Impact Resistant
UL 2218 Class 4 — top hail rating
Rain & Moisture Proof
Repels ~760 mm of rain a year
- 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 finish and corrosion resistance
- Tested to withstand 120+ mph wind events, providing measurable wind resistance for severe gusts that can affect roofs around Worthington Park and Dane County
- Designed for Dane County winters: snow-shedding panels reduce heavy snow buildup and mitigate roof snow-load stress on Worthington Park homes
- Helps limit ice-dam formation and freeze–thaw damage by promoting rapid snow release and stabilizing roof-surface temperatures through repeated cold cycles
- UL 2218 Class 4 impact resistance for protection against hail, falling branches, and seasonal storm debris common to the region
- Class A fire-rated available to enhance ember resistance and fire-performance for properties in and near Worthington Park
- Energy-efficient cool-roof performance reduces attic heat gain during summer heat waves that occasionally stress Dane County homes
- Solar-compatible roof surface engineered for modern bracket-mounted photovoltaic systems on Worthington Park residences
- Low-maintenance, fully recyclable aluminum roofing reduces long-term replacement needs compared with asphalt shingles prevalent in the area
- Precision architectural profiles—slate, cedar shake, tile, and standing seam—deliver neighborhood-appropriate aesthetics without sacrificing technical performance in Worthington Park
- Backed by a Lifetime-Limited transferable warranty to protect long-term investment and resale value for homeowners in Worthington Park and Dane County
- Although atmospheric rivers are rare this far inland, the system’s sealed seams and high-capacity drainage manage intense, short-duration rainfall events when they occur in Dane County
- Worthington Park has no marine salt exposure, yet the Alunar®-coated aluminum provides strong corrosion resistance for homes exposed to de-icing salts or inland moisture
- Non-porous coated surfaces resist moss and biological growth on shaded, moisture-prone roofs, reducing maintenance needs for Worthington Park properties
Metal roofing built for Worthington Park's climate
Averages (10-yr): ~760 mm rain and 98 cm snow per year, ~3073 sunshine hours, mean 8.5°C, typical daily-max winds ~22 km/h with gusts to 97 km/h, and ~81 freeze–thaw days per year.
- 98 cmavg. snow / year
- 760 mmavg. rain / year
- 81freeze–thaw days / year
- 97 km/hpeak wind gusts
- 3073 hrsannual sunshine
- 8.5°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.
- 2355 Fairview Ave N, Roseville, MN 55113, United States
- Phone 414-348-8870
- Local lines Minnesota 612-800-8686
- Sales & Marketing sales@minnesotametalroofing.com
- Toll-Free 1-866-733-5811
- Customer Service mwservice@interlockroofing.com
- www.WisconsinMetalRoofoing.com
- Also wisconsinmetalroofing.commidwestmetalroofing.com
- License WI #898136
- EPA Lead-Safe Certified Firm #NAT-F224594-2
- Serving Wisconsin 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 Wisconsin is a trusted metal roofing contractor proudly serving homeowners and businesses throughout the State of Wisconsin. 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 Wisconsin provides exclusive lifetime roofing products engineered to perform in Wisconsin’s demanding climate — from heavy snow loads and ice dams to hailstorms, high winds, freezing temperatures, and dramatic seasonal weather swings. Built on integrity, professionalism, and superior workmanship, Interlock Metal Roofing has completed thousands of successful roofing installations across North America, helping Wisconsin 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, ongoing 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 Wisconsin’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 Wisconsin 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 Worthington Park, Wisconsin
Interlock® Aluminum Roofing — all-climates performance specs for Worthington Park, Wisconsin
| 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 Worthington Park, Wisconsin:
Explore all Interlock® metal roofing systems, or see the Guardian lifetime warranty and independent testing reports.
Recent Interlock® roofs across Wisconsin
Completed Interlock® metal roofs near Worthington Park, WI
Every marker is a real, anonymized Interlock® aluminum roof completed by a Certified Interlock Installer. Explore verified Interlock® installations near Worthington Park, Wisconsin, 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 Worthington Park on the interactive project map →Browse all Interlock® projects in Wisconsin →See more Interlock® projects →
What our customers are saying:
Hello Greg, I just had to drop you a line to tell you how pleased we are with the Interlock Roofing System that was installed last week. I have to admit that as good as I was hoping it would look, it turned out to be so much better than I had even hoped. We couldn’t be prouder of how our house looks now; the new roof is visually stunning. We can now breathe a huge sigh of relief, knowing that we’ll never again have to go out into the yard and pick up the pieces of asphalt shingles that would blow off of the roof after a storm or a high wind day. To boot, the very day after the roof was completed, we had someone who identified himself only as “your nosy neighbor from 10 miles down the road,” who stopped, knocked on our door and started asking questions about the roof. He was shocked to hear that it was a metal roof. He thought that we had installed a slate roof! He was very interested to hear all the facts about the roof, and suddenly I became Interlock Roofing’s most avid salesman. I brought out your business card so that he could take a picture of it with his cell phone, and he said he’d be contacting you soon. I’ve also been talking about the roof with some of the guys at work who had seen the before and after pictures that I brought in, and I’m sure that you will be hearing from some of them in the future too. Now, as much as I couldn’t be happier with contacting you and doing business with you, I have to tell you that even you will have to take a back seat to the super awesome job of your installers, Jesse and his team. To say we were blown away by these guys would be the understatement of the century. They came in like a whirlwind and started doing their thing and made astounding progress in such a short period of time, it blew us away. Jesse himself is such a great face to have attached to your company. He is professional, knowledgeable, and so personable that we knew in an instant that we were in good hands with him and his team. All of his team members were that way, and honestly, the hardest working group of guys that you will ever witness. We expected it to take anywhere from 5 days to a week to get our whole roof done. These guys had it done in 2 days and a couple of hours, and they left no stone unturned in doing the A-1 job that was promised. They even fixed a couple of cosmetic items on our existing siding to boot! What a great bunch of guys. And let me reiterate one more time,…Interlock, as a company, should feel confident and proud to have Jesse and his team representing them. I’m positive you will never find a better team to install your product than them. Again, thank you for the product and the work that you’ve done. You now have not only a very satisfied customer in us, but you also have a couple of very enthusiastic ambassadors for Interlock Roofing Systems.
I have made, and continuously still make, numerous recommendations to family & friends to install a Interlock roof. And, I have produced pictures on demand that I stored on my smart phone. If possible, I would be appreciative if I could get the drone footage that Jesse had taken after the finishing of the installation. I believe it would be a great selling point coming from a true customer to help propel the Interlock name. There are just a couple areas on the roof that the installation crew could have touched-on during the installation, but overall the roof looks simply amazing. Quality certainly displays the professionalism the installers had put into their work. Since the installation of our new roof, we have received numerous compliments from many of our neighbors that walk around our subdivision, plus a handful of neighbors in the adjoining subdivisions. Many questions have been asked with many answers given. We are definitely happy with our new Interlock roof. We have NOT once questioned or second guessed our decision to install an Interlock roof. It is one of the best decisions we have ever made for re-investing in our home...Thank you, Interlock!
I never really thought I could be thrilled about a roof, but I have to tell you; our new Interlock roof is beautiful! It adds true elegance to our home. We know it adds value as well, and the fact that we will never need to re-roof again is a definite advantage. Everyone within our organization, from the initial phone contact to the installation crew, was courteous and pleasant to work with. The install went smoothly and the crew kept the site clean from beginning to end. Everybody we have shown our Interlock roof to has seemed quite impressed also. We would (and in fact have already done so) recommend Interlock Roofing to others.
Excellent roof! Looks good! The installers were courteous and professional. Put the tarp all around the house and kept the site very clean. I was impressed with their super service. They bent over backward to please us. The A-Team of Roofing! When it rains, it is NOT any louder, and we are in a wind zone, and shingles have not blown off, and we have had the roof since 2008. The snow slides off, too! And the salesman knows his product and explains it well. It will add value to the house. Unlike asphalt, that's like tar and paper, and doesn't hold up. The Interlock Lifetime Roof is super durable!d Greg Weber the salesman, knows his product and explains it well. It will add value to the house. Unlike asphalt, that’s like tar and paper and doesn’t hold up. The Interlock Lifetime Roof is super durable!
We purchased our roof in 2009 and as you can see from the pictures taken in May of 2017, our roof looks as new as the day we bought it. Here are the things we have noticed most about our Interlock Lifetime Roof over the last 8 years. It keeps our house much cooler in the summer than the asphalt roof we used to have. It really sheds snow, and the snow guards work great. We never need to use a snow rake. We love the durability and the curb appeal. Greg Weber our representative, who we were enthused to learn, is still with the company. When we saw him in 2009 he laid out all the variables in a professional way and our Interlock Roof has lived up to all of our expectations and promises he made. All companies promise results, service, and quality. Interlock delivers.
The installation was super smooth. Every installer was courteous and professional. We get lots of compliments, and people stop by all the time to admire it. One of the biggest misconceptions about metal roofing is people think it’s loud. Our Interlock roof is very silent. The only way I know if it’s raining is if I look out a window. Also, the snow just slides off. We are also in a wind tunnel area, and we have never lost an Interlock shingle, and we have had the roof for many years. We were so pleased with our Interlock roof that we put the same roof on our lake home in northern Wisconsin. We get a lot more snow up there and the Interlock’s snow-shedding performance capabilities are second to none on that roof, too!
I love the roof! It looks great, and the squirrels that we’re crawling all over my old asphalt roof slide right off it. The snow slides off, too. I hope to get some $500 referrals. The crew was terrific, hardworking, courteous, polite, and clean.
Drip, drip, drip. This is not a sound you want to hear at 3:30 am… in bed… coming from your attic… in the dead of winter. A quick peek in the attic confirmed my worst fears, the ice dam on the roof was allowing melted water to seep through the crappy asphalt shingles and into the house. We called a local contractor and had the ice dam removed, but this didn’t fix the underlying problem that our current roof was cheap and damaged. My wife and I moved into a beautiful three-story brick Tudor on Madison’s near west side in the fall of 06′. It was perfect in that it had been beautifully remodeled with gorgeous woodwork, marble, and stunning attention to detail, with the exception of the roof. We had decided that, barring any unforeseen circumstances, this was the house we were going to stay in until retirement, so why not invest in a metal roof. After a couple of weeks of research and interviewing, we settled on Interlock. Part of the choice was made on the quality of the product, and part was made on the salesmanship of the rep, Chuck. Work started and except for some problems with the weather, things progressed smoothly. We were especially impressed with the steps the crew took in regard to safety, and our stay-at-home neighbor told us about how exciting the crew was, “you’re definitely getting your money's worth,” was her exact quote. At the end of the job, the crew even emptied all the trash we had pulled out of the attic for us. Now that’s service! After everything is said and done, we’ve been able to cap off our gorgeous house with an equally gorgeous roof.
I had Interlock put on a beautiful red slate roof 17 years ago.The roof still looks beautiful. 5 years ago, I had them also re-roof my garage with the same type of slate. The roofs look gorgeous and I have no maintenance whatsoever.I get complements all the time. The guy whom I contracted with was named "Tim' but has since died. He was a really nice guy. Back in 2009, the roof was much cheaper. ( I actually paid more for the garage 5 years ago!) I am extremely happy with the roofs. The guys did a wonderful job, replacing rotted boards where necessary. They also told me about very cheap gutters I could buy at Menards instead of those ridiculously - priced "special" gutter systems. I bought them and they placed them on my buildings.This home will go to my daughter one day; I do not want her to have to lift a finger. Note that I had an asphalt roof previously. It lasted only 12 years. The shingles curled up under the sun and cracked. They looked terrible. I can honestly say that these metals roofs by Interlock are very much worth what you pay for them. They will last a lifetime with almost no maintenance. Instead of replacing a roof every 15 years and paying lots for asphalt or fiberglass, their metal roofs last very long and you will never have to re- roof again.
Dear Interlock Lifetime Roofing Systems: We purchased our Interlock Lifetime Roof in June 2014. We are very happy with the look, durability of the material, and finish. After a snowfall, the heat of the sun will warm the roof and allow the snow to shed from the roof. We have a great sense of security, knowing it can withstand higher winds than conventional asphalt. In fact, our neighbors lost many shingles in the last major wind storm, and our Interlock roof proved to be the high wind resistance product it is with all shingles intact. We love the fact it’s more reliable and has peace of mind knowing it has lots of longevity and will look brand new not only now but down the road. We also received a discount on our homeowner’s insurance. Overall, we were very satisfied with our sales representative Greg Weber, the company, the service, and the product.
In March 2017 we had an Interlock Lifetime Roof installed. Greg Weber, the salesman, was not pushy. We were very impressed with his salesmanship and the product. He also offered to have the Interlock product put on our wishing well in the front yard. That was something we really appreciated. The clean-up was excellent! Many neighbors and people who " data-wpil-keyword-link="linked">walk by the house have noticed the roof and asked a lot of questions. We have gotten lots of compliments!
The Interlock crew was able to take some extra time to coordinate with another contractor for solar installation. As a result, the final the result looks great and very functional. The materials used are very high quality, and they worked efficiently and cleaned up when finished.
Nearby service areas in Dane County
Interlock® metal roofing is also installed in these communities near Worthington Park:
Interlock Industries (Midwest) Inc. also services nearby States
Beyond Worthington Park, our team installs Interlock® metal roofing across:
Metal Roofing FAQs for Homeowners in Worthington Park
The following metal roofing FAQs are designed specifically for homeowners in Worthington Park, Wisconsin. 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 Worthington Park.
How does a metal roof handle Worthington Park's heavy snow and freeze-thaw cycles?
Aluminum's smooth, low-friction surface sheds snow naturally, preventing dangerous buildup—critical in a region that averages about 98 cm of snow annually. The four-way interlocking panels shed water efficiently even during the area's 81 freeze-thaw days per year, so ice dams are far less likely than with asphalt. The lightweight design (Cedar Shingle at 0.41 lb/sq ft) means no structural reinforcement needed, and you can add snow guards if preferred. Unlike asphalt, which becomes brittle in cold, aluminum remains flexible through repeated freezing cycles without cracking or curling.
Why won't an aluminum metal roof rust, even in Dane County's wet climate?
Aluminum cannot rust because it contains no iron—the element that oxidizes and deteriorates. Instead, aluminum forms a thin, self-healing oxide layer that protects the core material. When scratched, this layer naturally reforms, making it ideal for Wisconsin's ~760 mm annual rainfall. The Alunar 70% PVDF fluorocarbon coating (warranted 30 years against fading) adds a second barrier on both sides of every panel. This dual protection means your roof stays structurally sound for decades in wet climates where steel or iron-based materials would degrade.
Will freeze-thaw damage affect my metal roof over time?
No; aluminum's crystalline structure actually strengthens it under repeated freeze-thaw stress. Unlike asphalt shingles that become brittle and crack during Wisconsin's ~81 freeze-thaw cycles yearly, or wood shakes that split, roofing-grade 3105-H24 aluminum alloy (ASTM B209) remains ductile through constant temperature swings. The material expands and contracts uniformly without permanent deformation, and the ICC-ES evaluation (ESR-1790, reissued 2025) confirms performance in freeze-thaw-prone climates. Homeowners in similarly harsh regions have used Interlock panels for 25+ years without material failure.
Can hail damage my metal roof, and might my homeowner's insurance rate drop?
Interlock metal roofing carries a UL 2218 Class 4 impact rating—the highest available—and the warranty even covers perforation from hailstones up to 1.5 inches. This top-tier rating has qualified some homeowners for insurance discounts, though coverage varies by carrier and policy. Many insurers recognize that metal roofs outlast multiple asphalt cycles and rarely require claims. With Dane County's hail exposure and the roof's proven resistance, it's worth asking your agent about premium reductions when you transition from asphalt.
How well does a metal roof stand up to Wisconsin wind and gusts?
The four-way interlocking panel system is warranted to resist wind speeds up to 120 mph when installed to specification—well above the typical gusts of 97 km/h (60 mph) Worthington Park experiences. The interlocking design distributes wind load across multiple connection points rather than stressing individual fasteners, which is why the warranty covers this extreme scenario even though local wind speeds are more moderate. During the strong storms common to Dane County, the mechanical lock between panels keeps them firmly in place, preventing the uplift and blow-off failures that plague asphalt shingles.
Do I need to reinforce my roof framing to support a metal roof?
Almost certainly not. The Slate and Cedar Shingle profiles install at around 0.41 lb/sq ft, and even the Mediterranean Tile—which replicates the look of heavy clay tile—weighs only ~0.59 lb/sq ft, about 96% lighter than the real thing. Most homes' existing framing easily handles this load, so costly structural upgrades are avoided. Interlock can install directly over your existing asphalt roof, saving the cost and landfill impact of tear-off. A local structural engineer may confirm your specific situation, but weight-related reinforcement is rarely necessary in residential applications.
How much maintenance does a metal roof really require?
Significantly less than asphalt, wood, or tile. Aluminum and the 30-year Alunar coating (ASTM D4214 / D2244 tested) resist weathering from Wisconsin's ~760 mm annual rainfall and ~3073 sunshine hours without degradation. You don't need to worry about rot (asphalt and wood), moss growth, or the crumbling that affects tile. Routine inspection after severe weather is sensible, and minor debris clearing is routine homeowner maintenance. The Guardian Warranty covers splitting, cracking, curling, and loss of impact resistance—issues that plague other materials—at no cost. This is CALGreen-verified for reduced maintenance burden.
Will a metal roof help cool my home and lower summer energy costs?
energy-efficient colors with thermal emissivity of 0.84 and solar reflectance up to 0.55 (Aged Copper Penny) reflect heat that asphalt absorbs, reducing cooling load. The Cool Roof Rating Council verified this performance, meaning less work for your air conditioning during Wisconsin's warmer months. While Worthington Park's ~8.5°C annual mean temperature doesn't require aggressive cooling, the reflective properties still trim summer bills and reduce thermal stress on the structure. In winter, the roof's properties don't prevent beneficial solar gain through south-facing windows, so you gain efficiency year-round.
What exactly does Interlock's lifetime warranty cover, and can I transfer it?
The Guardian Warranty is a non-prorated, lifetime limited material warranty for the original owner—meaning no depreciation over time—covering rusting, rotting, splitting, cracking, curling, and loss of impact resistance. It's one-time transferable to the next owner with a 50-year term from completion, adding significant resale appeal. Unlike prorated warranties that shrink in value each year, this commitment reflects confidence in aluminum's durability in climates like Dane County's, where 81 freeze-thaw cycles annually stress lesser materials. This warranty is backed by decades of field performance since manufacturing began in 1998.
Is a metal roof better for the environment than asphalt shingles?
Substantially. Aluminum roofing is approximately 95% recyclable, so at the end of its multi-decade life, the material returns to useful production rather than a landfill. Asphalt shingles, by contrast, are torn off every 15–20 years and disposed of by the millions of tons annually. By choosing a roof that lasts 50+ years without replacement, you eliminate multiple tear-off-and-haul cycles over a lifetime. The lightweight design (no structural reinforcement needed) further reduces material consumption during installation. For environmentally conscious Worthington Park homeowners, this means living under a roof that doesn't perpetuate the asphalt waste stream.
Is a metal roof a good choice for Worthington Park’s climate?
Yes. Worthington Park averages about 98 cm of snow, 760 mm of rain, roughly 81 freeze–thaw days a year, with peak wind gusts near 97 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.













