Metal Roofing in Grandview Commons, Wisconsin — Lifetime Interlock® Aluminum Shingles Installed Locally
Grandview Commons Metal Roofing Experts Installing Lifetime Interlock® Aluminum Shingles Since 2001
Metal Roofing Built for Grandview Commons's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection
Interlock Metal Roofing is the trusted metal roofing contractor and local installer in Grandview Commons, Dane County, Wisconsin—founded May 17, 2001—and the exclusive authorized installer of Interlock® lifetime aluminum roofing systems engineered for performance, beauty, and durability. We provide roof replacement and re-roofing in Grandview Commons, delivering heavy-gauge, fire-resistant, energy-efficient cool roof solutions designed to shed heavy Wisconsin snow, resist ice dams and freeze–thaw damage, withstand hail and high winds, and reflect summer heat to lower cooling costs. The Interlock Lifetime Roofing System offers the timeless look of slate, cedar shingles, shake, Mediterranean tile, or standing seam with the strength of metal, protected by the Alunar® Coating System and backed by a Lifetime Warranty for homes throughout Grandview Commons.

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 ~84 freeze–thaw days a year
Rain & Moisture Proof
Repels ~781 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.
- Aluminum is coated with the Alunar® Coating System (no visible aluminum surface) to provide a durable finished surface that resists corrosion from winter road salt and deicing chemicals common in Dane County.
- Tested to 193+ km/h (120+ mph) for severe windstorms and gusts, providing robust wind performance for Grandview Commons roofs.
- Snow-shedding metal panels reduce heavy buildup and help prevent ice dams after substantial Wisconsin snowfalls on Grandview Commons homes.
- Engineered to tolerate repeated freeze–thaw cycles typical across Dane County, minimizing thermal movement, seal fatigue, and fastener stress.
- Class A fire-rated available.
- UL 2218 Class 4 impact resistance for protection against hail, falling branches, and storm debris.
- Energy-efficient cool-roof performance reduces summer heat gain and improves attic comfort during Midwest heat waves.
- Solar-compatible system engineered for modern bracket-mounted photovoltaic arrays, simplifying PV installation on Grandview Commons properties.
- Sustainable, fully recyclable aluminum construction reduces lifecycle material waste compared with frequent shingle replacements.
- Low-maintenance finish resists granule loss, staining, and degradation from repeated ice-melt treatments—practical for Grandview Commons homeowners dealing with road salt and thaw cycles.
- Premium architectural profiles replicate slate, cedar shake, tile, and standing seam to preserve curb appeal in Grandview Commons neighborhoods.
- Backed by a Lifetime-Limited transferable warranty to protect long-term investment and resale value for Dane County residences.
- Designed to limit moss and biological growth on shaded or north-facing roofs common in the area; finish-compatible cleaning preserves the Alunar® coating on Grandview Commons homes.
Metal roofing built for Grandview Commons's climate
Averages (10-yr): ~781 mm rain and 89 cm snow per year, ~3089 sunshine hours, mean 9.1°C, typical daily-max winds ~20 km/h with gusts to 104 km/h, and ~84 freeze–thaw days per year.
- 89 cmavg. snow / year
- 781 mmavg. rain / year
- 84freeze–thaw days / year
- 104 km/hpeak wind gusts
- 3089 hrsannual sunshine
- 9.1°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 Grandview Commons, Wisconsin
Interlock® Aluminum Roofing — all-climates performance specs for Grandview Commons, 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 Grandview Commons, 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 Grandview Commons, WI
Every marker is a real, anonymized Interlock® aluminum roof completed by a Certified Interlock Installer. Explore verified Interlock® installations near Grandview Commons, 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 Grandview Commons 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 Grandview Commons:
Interlock Industries (Midwest) Inc. also services nearby States
Beyond Grandview Commons, our team installs Interlock® metal roofing across:
Metal Roofing FAQs for Homeowners in Grandview Commons
The following metal roofing FAQs are designed specifically for homeowners in Grandview Commons, 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 Grandview Commons.
How does a metal roof handle Wisconsin's heavy snow and ice buildup?
Interlock's four-way interlocking panels shed snow and ice effectively because their smooth aluminum surface resists ice adhesion—a real advantage in Grandview Commons, where you receive about 89 cm of snow annually. The lightweight design (Slate at just 0.41 lb/sq ft) means no structural reinforcement is needed, even under accumulated snow load. Properly installed with optional snow guards, the roof sheds safely rather than pooling water that causes ice dams. Unlike asphalt, which absorbs and holds moisture through freeze-thaw cycles, aluminum's oxide layer simply doesn't degrade from repeated freezing. Interlock is backed by a lifetime limited warranty covering impact and material failure through Wisconsin's typical 84 freeze-thaw days per year.
Will freeze-thaw cycles in Grandview Commons damage my metal roof over time?
No—aluminum's durability through freeze-thaw actually improves your long-term outlook. Unlike asphalt shingles, which crack and curl as moisture penetrates and expands when frozen, roofing-grade aluminum (3105-H24 / 3003-H24 per ASTM B209) simply doesn't absorb water. Grandview Commons experiences roughly 84 freeze-thaw days yearly in a climate averaging 9.1°C. Interlock's Alunar 70% PVDF coating, warranted 30 years against degradation, provides an extra barrier. The Guardian warranty even covers cracking and curling—conditions caused directly by freeze-thaw—so you're protected through decades of Wisconsin winters.
Can a metal roof actually rust, or is that just a sales pitch?
Aluminum cannot rust because it contains no iron—the element that oxidizes and corrodes. When aluminum is scratched, its oxide layer self-heals automatically, sealing the bare metal underneath. This matters in Grandview Commons, where 781 mm of annual rainfall and occasional road salt spray (especially near major corridors) would accelerate rust on steel roofing. Interlock applies Alunar fluorocarbon finish to both sides of every panel for extra protection against corrosion. The roof has been installed on coastal salt-air homes and even an Antarctic research station, demonstrating proven performance in harsh, moisture-rich climates far more aggressive than Wisconsin's. Your warranty covers rusting for the lifetime of your ownership.
Are interlocking metal panels strong enough for Wisconsin wind gusts?
Yes—the four-way interlocking design is engineered specifically for wind resistance. Interlock panels are warranted to resist wind speeds up to 120 mph (193 km/h) when installed to specification. Grandview Commons experiences typical daily-max winds around 20 km/h with occasional gusts to 104 km/h, well within that range. The interlocking system distributes lateral forces across adjacent panels rather than relying on fasteners alone, so each panel reinforces its neighbors. ICC-ES evaluation ESR-1790 (reissued 2025) confirms the installation method meets all Wisconsin building codes. Insurance companies recognize this durability; many offer discounts for impact-rated metal roofing.
Does metal roofing hold up to hail, and can it lower my insurance costs?
Interlock achieves UL 2218 Class 4 impact rating—the highest available—and the Guardian warranty actually covers perforation from hailstones up to 1.5 inches. This non-combustible aluminum construction often qualifies homeowners for insurance premium reductions. Many Wisconsin insurers recognize Class 4 impact ratings and reward them with discounts, particularly in areas prone to severe weather. Unlike asphalt shingles, which dent, crack, and lose granules from hail, aluminum's inherent hardness and elasticity bounce back from impact. Contact your agent with Interlock's UL 2218 Class 4 rating—they can review your specific policy. Over a 50-year lifespan, these savings compound significantly.
Can a metal roof actually cool my home in summer, or is that marketing?
energy-efficient Interlock colors reflect heat rather than absorbing it the way asphalt does. Select finishes (like Aged Copper Penny) offer initial solar reflectance up to 0.55 and thermal emissivity of 0.84—Cool Roof Rating Council verified. In Grandview Commons, where you enjoy about 3,089 sunshine hours per year, this reflectance reduces roof surface temperature and cooling demand. The lightweight design (Shake at 0.58 lb/sq ft) also means faster nighttime heat release compared to heavy tile. Combined with proper ventilation, a reflective metal roof measurably lowers summer cooling costs. Winter heat loss is similar to asphalt because both sit atop insulation—the real savings come from reduced air-conditioning in warm months.
Do I need to reinforce my home's structure for a metal roof?
No structural reinforcement is needed. Interlock's Mediterranean Tile profile weighs approximately 0.59 lb/sq ft—about 96% lighter than traditional concrete or clay tile—so it installs directly over most existing roof frames without additional support. Even the heavier Shake profile at 0.58 lb/sq ft is negligible compared to asphalt's typical weight. This lightweight advantage means you can often install Interlock over your current roof without tear-off, eliminating labor costs and landfill waste while reducing project timeline. ICC-ES ESR-1790 confirms installation methods for various roof decks. A structural engineer rarely needs to assess an Interlock installation, saving inspection fees and timeline delays.
How much maintenance does a metal roof actually require?
Interlock requires significantly less maintenance than asphalt, wood shake, or tile. Aluminum doesn't split, crack, curl, or lose protective granules as traditional materials do across Wisconsin's 84 annual freeze-thaw cycles. The Alunar coating is warranted 30 years against chalking and fading (ASTM D4214/D2244 tested), so color and finish remain stable. Occasional gutter cleaning and debris removal—the same routine you'd perform with any roof—is all that's needed. CALGreen verification confirms the system reduces maintenance burden. Because aluminum cannot rot or sustain wood decay, you'll never replace individual boards or fill hidden voids. This low-maintenance profile means lower long-term costs and peace of mind.
What's the real lifespan of a metal roof, and what does the warranty actually cover?
Interlock's Guardian warranty is a lifetime limited non-prorated material warranty for the original owner, covering rusting, rotting, splitting, cracking, curling, and loss of impact resistance. The warranty transfers once to the next owner for 50 years from completion, adding real resale appeal. In practice, aluminum roofing installed since 1998 (Interlock's manufacturing start) and performed at Antarctic research stations demonstrates durability far exceeding typical residential lifespan. The Alunar coating adds an explicit 30-year written guarantee against degradation. Most homeowners install Interlock once and never reroof. This is genuinely the last roof you buy—a fact reflected in the Guardian's non-prorated protection through freeze-thaw, wind gusts to 104 km/h, and Wisconsin's variable climate.
How long does installation take, and can you install over my existing roof?
Interlock installs quickly over most existing asphalt roofs without tear-off, often completing in days rather than weeks. The lightweight panels (Slate at 0.41 lb/sq ft) reduce labor time and material handling. Because you're not stripping and hauling away tons of old shingles, there's less job-site disruption, lower disposal costs, and minimal impact to your property. The four-way interlocking system means fewer fastener points and faster sealing. Timeline varies by roof size and weather, but Interlock's local installer, serving the region since 2001, can provide a firm schedule after inspection. Over-roof installation also means you retain existing roof insulation and structure, simplifying the process. Precise timeline details come from your site assessment.
Is a metal roof a good choice for Grandview Commons’s climate?
Yes. Grandview Commons averages about 89 cm of snow, 781 mm of rain, roughly 84 freeze–thaw days a year, with peak wind gusts near 104 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.













