Metal Roofing in Orléans, Ontario — Lifetime Interlock® Aluminum Shingles Installed Locally

Orléans Metal Roofing Experts Installing Lifetime Interlock® Aluminum Shingles Since 1998

Metal Roofing Built for Orléans's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection

Interlock Metal Roofing (Ontario) Ltd., founded February 27, 1998, is a trusted local metal roofing contractor and the exclusive authorized installer of Interlock® Lifetime aluminum roofing systems serving homeowners in Orléans, Ontario. The Interlock Lifetime Roofing System combines heavy-gauge, fire-resistant, energy-efficient cool-roof construction with the Alunar® Coating System for superior performance—shedding heavy Orléans snowfall to reduce ice-dam risk during freeze–thaw cycles, resisting UV and summer heat to lower cooling loads, and standing strong against wind and long-term moisture exposure. For roof replacement and re-roofing throughout Orléans, choose timeless slate, cedar shingle, shake, Mediterranean tile or standing-seam looks with the strength, durability and Lifetime Warranty homeowners rely on.

Interlock metal roofing styles including slate, cedar, shake, tile, and standing seam in Orléans, Ontario

Performance you can measure (all climates)

Wind- and storm-resistant Interlock® metal roof rated to 193+ km/h for Orléans, Ontario

Weather Resistant

Tested to 193+ km/h (120 mph) winds

Interlock® aluminum metal roof in Orléans, Ontario backed by a Lifetime-Limited, transferable warranty

Durable

Lifetime-Limited, transferable warranty

Energy-efficient cool-roof Interlock® aluminum metal roofing in Orléans, Ontario

Energy Efficient

Reflective cool-roof lowers cooling costs

Freeze–thaw durable Interlock® metal roof for Orléans, Ontario

Freeze–Thaw Durable

Endures ~89 freeze–thaw days a year

Snow-shedding Interlock® metal roof built for Orléans, Ontario winters

Snow-Shedding

Built for ~144 cm of snow a year

Rain- and moisture-proof Interlock® metal roof for Orléans, Ontario

Rain & Moisture Proof

Repels ~883 mm of rain a year

  • Proudly manufactured in Canada by a family-owned company with authorized installers serving homeowners across Orléans and east Ottawa
  • Exclusive authorized installer of Interlock® Lifetime Aluminum Roofing Systems for Orléans residences
  • Designed for Orléans’ eastern Ontario climate — engineered to withstand heavy snow loads, freeze–thaw cycles and ice-storm stresses
  • Coated with the Alunar® Coating System (no visible aluminum surface) for enhanced corrosion resistance and long-term finish retention on Orléans roofs
  • Resists corrosion from winter de‑icing salt and riverine moisture common near the Ottawa River and local roadways
  • Precision weatherproof seams (profiles: slate, cedar, shake, tile) and mechanical fastening (profile: standing seam) deliver long-term leak protection during wind-driven rain events
  • Tested to 193+ km/h for severe windstorms, providing measured wind resistance for eastern Ottawa storm events
  • Advanced waterproof installation reduces leak risk during Orléans’ intense spring thaws and episodic heavy rainfall (atmospheric-river remnants)
  • Snow-shedding panels minimise snow accumulation and reduce ice-dam formation during prolonged freeze–thaw periods
  • Surface finish and profile detailing limit moss and algae adhesion in humid, shaded neighbourhoods of Orléans
  • UL 2218 Class 4 impact resistance protects against hail, falling branches and storm debris typical of seasonal storms
  • Class A fire-rated available to meet homeowner preferences for enhanced fire performance
  • Energy-efficient cool-roof performance lowers attic temperatures during summer heat spells and improves year-round comfort
  • Solar-compatible roof system engineered for modern bracket‑mounted photovoltaic installations on Orléans homes
  • Low-maintenance, fully recyclable aluminium roofing that outlasts asphalt shingles in eastern Ontario’s wet‑freeze cycles
  • Backed by a Lifetime‑Limited transferable warranty for long-term protection and resale value in the Orléans market

Metal roofing built for Orléans's climate

Averages (10-yr): ~883 mm rain and 144 cm snow per year, ~2903 sunshine hours, mean 7.5°C, typical daily-max winds ~18 km/h with gusts to 92 km/h, and ~89 freeze–thaw days per year.

  • 144 cmavg. snow / year
  • 883 mmavg. rain / year
  • 89freeze–thaw days / year
  • 92 km/hpeak wind gusts
  • 2903 hrsannual sunshine
  • 7.5°Cmean temperature

Interlock® aluminum roofing is engineered for these conditions — wind-rated to 193+ km/h (120 mph), UL 2218 Class 4 impact-rated, Class A fire-rated, and built to shed snow and resist ice dams and freeze–thaw cracking, backed by a lifetime limited warranty.

Interlock Metal Roofing (Ontario) Ltd.

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 (Ontario) Ltd. has provided premium aluminum roofing across Eastern Ontario since 1998, combining local expertise with unmatched product quality. From Ottawa to Almonte and Cornwall, our roofs are engineered to endure snow, rain, and temperature extremes—offering beauty and performance that last a lifetime. Homeowners throughout Eastern Ontario trust Interlock for professional installation, lifetime warranties, and sustainable roofing systems built to protect and enhance every home.

Recognition GuildQuality Guildmaster Award — verified customer satisfaction (GuildQuality)

Accredited BBB Accredited A+ · Baeumler Approved

Part of the Interlock® certified installer network →

Get a Free Metal Roof Estimate in Orléans, Ontario

Interlock® Aluminum Roofing — all-climates performance specs for Orléans, Ontario

Spec / RatingClimate / 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 4Hail and impact debris: highest impact classification; resists cracking, splitting, and surface loss common with asphalt under hail strikes.
Snow & ice performance: interlocking, shedding profileHeavy 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 systemHigh heat, intense sun, thermal cycling: coatings resist UV breakdown and temperature-swing fatigue, slowing fading and surface degradation.
Moss / algae resistance: smooth coated surfaceWet 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+ yearsLong-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 transferableLifetime protection + resale value: guarantees long-term material confidence and transfers to future owners.

Available Profiles in Orléans, Ontario:

Explore all Interlock® metal roofing systems, or see the Guardian lifetime warranty and independent testing reports.

80 completed Interlock® metal roofs in Orléans, ON

Interlock® has completed 80 metal roofs in Orléans, Ontario between 1998–2023, across 3 roof profiles (Shingle, Slate, Cedar Shingle). Every marker is a real, anonymized installation completed by a Certified Interlock Installer — explore them on the interactive map and photo grid below, filterable by profile, colour and year of completion.

  • 80completed roofs
  • 3roof profiles
  • 1998–2023years

4.6 / 5 — from 1,932 verified customer reviews in Ontario

What our customers are saying:

★★★★★
Review: November 26, 2010Completion: November 25, 2010

Usually, I don't have the time to write testimonials or reviews of any sort, but in this particular instance, I felt that I need to do so. We all know how stressful and expensive home renovation projects can be. Roofing replacement is one of the most important and also one of the most expensive. As the owner of quite a large apartment building in the established Glebe neighbourhood in Ottawa, my project posed many challenges - proximity to adjacent buildings, a short timeframe and a very high degree of difficulty. Property management allowed me to surround myself with some exceptional trades, but "Interlock Roofing Systems" were unknown to me, just liked the product. The whole experience ended up being outstanding from the moment I met Dave Brown, the salesperson, Sheldon and Tony in the Service department. Professional, efficient, and responsive, but I must say that the crew that did the installation blew me away. Rick, Sandra, Al, James and Sheldon were among the nicest groups of people I've had the pleasure of dealing with in my property management and ownership experience. With their professional approach and respectful and knowledgeable conduct, Rick and the crew made me feel that I was getting outstanding work done by friends. Clean, fast, and efficient... worked in the pouring rain, wind, and freezing temperatures and finished a massive job in a week. We all know when someone goes that "extra mile," and that's what I end up getting from Rick and the guys. The result - OUTSTANDING. Thank you.

★★★★★
Review: October 15, 2023Completion: August 8, 2023

Great experience from start to finish. Easy and pleasant to deal with. Friendly staff in all departments. Final product looks amazing. Positive: Quality, Professionalism Services: Roof installation

★★★★★
Review: June 15, 2021Completion: September 22, 2020

One of those lucky days that I followed a link from a Facebook post. We had immediate follow up and then an appointment scheduled quickly and conveniently with Derek. We had done our homework and we were impressed with Derek's information and approach. Our installation was scheduled quickly. The installers were excellent, personable, professional and very tidy. No mess left behind. After the first winter we are very happy. I would recommend for other to consider more roof guards. Although we are protected over doorways there were mountains from the slide in our garden and on back patio. Not critical but something to consider. Services: Roof installation

★★★★★
Review: October 8, 2010Completion: June 28, 2010

Following the installation of our new Interlock Roof (Slate Style in Green Colour) in late summer 2010, we are pleased to report that we are completely satisfied with the look and appeal of the new roof in addition and, more notably, with the quality of the product and installation. The Interlock installers were quite competent and meticulous in their work and procedures as well as being quite forthcoming and courteous in providing answers to our questions. There was only one minor issue following the installation, and that was resolved on a very timely basis and explains our complete satisfaction with this new Interlock Roofing System on our summer home, originally built in 1940 on the 1000 Islands Parkway between Gananoque and Lansdowne. We are also grateful to Barry Brinson for arranging to have delivered to us a few more green Interlock tiles so that we can adapt and install them to the tops of the birdhouses found on the property! Based on this very positive experience and outcome, we wholeheartedly recommend the Interlock Roofing system/product and the professional installation crew that worked on our summer home in the 1000 Islands.

★★★★★
Review: August 30, 2016

Dear Interlock, My asphalt shingle roof was starting to curl and disintegrate after just ten years. Although I had considered metal the last time around, the cost seemed too high. This experience suddenly made it seem like the better choice. Barry arrived on June 16 and delivered a wonderful presentation on the merits of Interlock aluminum products, reaffirming much of the information available on the internet. The price quoted was more or less as expected, although he did talk me out of the more expensive shake profile which featured in my plans. The one surprise was that my preferred colour, the aged " data-wpil-keyword-link="linked">copper, came at an added cost. It would have been helpful had the website indicated that it commanded a premium price. The timeline was for installation anywhere from 2 to 7 weeks from signing. Provincial Foreman Tony advised me that the boxes of metal shingles and other materials would be delivered on June 27, but they actually arrived early the following morning. Kelly headed up the crew who did the actual installation. He kept me advised about timing and let me know when illness delayed their arrival by a few days. They showed up as promised on July 7 and had about half the house done before noon, working very smoothly together as a team, with the underlayment completed. Note that the underlayment comes with its own 50-year " data-wpil-keyword-link="linked">warranty and claims that it can cover a roof for up to six months without protection. This may be standard but seems like good quality to me. Cleanup was very good. The roof was completed on their second day of work, July 11, with a weekend of rain intervening. They also managed to do the entire garage roof (a separate building) the same day. The house roof is 17 squares, with the garage being another 7. Both are hip roof style. Cleanup was again quite good – I followed around for the final look and didn’t spot anything. However, the next day a closer look around found several strips of the cut asphalt shingles on top of a hedge and in a flower bed (well hidden, in all fairness), along with a few small pieces of cut aluminum which might pose a hazard for some of the younger children who routinely pass through my yard. Yesterday I found two aluminum nails which came to light only after a decent rainfall. Disappointingly, some cut shingles were also left in the gutters which is a much greater problem for an older person, meaning me, to resolve. Note that the noise of the rain on the aluminum roof is not much different from that of the asphalt shingles. Perhaps a slightly higher pitch, but the insulation in the attic and the fact that the old shingles were left on the roof under the aluminum perhaps helped to make it almost unnoticeable. Two days was quite a bit less than the estimated five for the installation. No complaints on this front. From signing the contract to completion was less than four weeks, which ranks as excellent service. Neighbours have been very complimentary about the appearance, with one opining that it’s the best-looking roof in the area. At the end of the day, my house and garage have great looking roofs which should add value when the house is sold (not anytime soon) and will not require replacement for the remainder of my ownership. Interlock personnel all performed admirably, and I am pleased with the final result.

★★★★★
Review: March 31, 2016Completion: March 30, 2016

Loving the roof. Sorry, it had to take a lot of your emails, but I'm really happy it is done. John (never got his last name) from Cornwall was great and had a great crew with him. They did an amazing job and was a pleasure to see their work on my house. Thank Dave Brown for me too, both his visits were pleasant and fun. I learned a lot from him, and we had great conversations, and without him, I would not have gotten my roof done. And also a thank you to you too. That long first conversation I had with you at the home show went a long way in my decision in going with an aluminum roof and with your company. Thanks, and I hope I never have to think about my roof again.

★★★★★
Review: October 4, 2010Completion: September 16, 2010

I had a new Interlock roof installed a few weeks ago and would like to express my appreciation for work well done. Your salesman, Mr. Barry Brinson, who was my first contact with Interlock, was impressive in his knowledge and experience. He gave me the confidence to deal with your establishment. He explained all roofing options and did not put any pressure on me to make an immediate decision. Your roofing team under Mr. John Caverley were quietly efficient and proceeded to do the job in a professional manner that gave me confidence in the quality of their workmanship. They left my property spotless after their clean-up. Please thank them all for me. My roof looks beautiful. It surpassed my expectations in terms of looks, and I know that its durability will not disappoint. Mr. Brinson did not mention one advantage to your roof, which both my wife and I enjoy: we love to hear the sound of the rain softly tapping on the roof. To summarize, I am glad I chose Interlock to do my roof. I could not have had a better team of roofers or a better product. Please express my appreciation to everyone involved for a job well done! Thank you.

★★★★★
Review: November 13, 2019Completion: October 31, 2019

No suggestions We’re very satisfied with the smooth and convenient process. The installation crew were extremely professional and efficient. We love our new Interlock roof!

★★★★★
Review: April 7, 2019Completion: March 23, 2019

Nothing. Barry is very knowledgeable and sells the product well. I had other roofing companies as option but I ended up choosing Interlock Roofing because I could not forget Barry speech, he is excellent. Both Barry and Tony are awesome.

★★★★★
Review: February 27, 2019

My wife and I are very impressed with the looks of the INTERLOCK black slate roofing system that was just installed on our home in the Huntclub Road / Conroy Road area in Ottawa. The crew that installed the roofing material during the 3rd and 4th weeks of January 2019 worked through and around temperatures between +.5°C to -25.°C, two weather events that dropped 46 cm of snow and 6 mm of rain and freezing rain plus the occasional days of lite snow flurries. The lead installer told me that a normal installation for the size of our roof could take 2 to 3 days in the spring, summer and fall but with the unpredictable weather doing winter jobs, it can take longer as some days with the extreme cold and dumps of snow it’s just too dangerous to work outside let alone on a roof. The three-person crew was very courteous and answered any and all questions my wife and I had during the installation process, and they made sure the work site was clean and tidy before leaving for home.

★★★★★
Review: December 30, 2015Completion: November 13, 2015

Better communication about start date would have been appreciated.Better cleanup would have been greatly appreciated. So far so good.We're really happy with the great looking roof.

★★★★★
Review: October 21, 2014Completion: September 9, 2014

a better estimate on work completion... I was informed it would take 3-5 days & scheduled to be there but I was pleased the work was completed in a day & a half.... I am not sure what the crew supervisors name was John C something I asked him for a card but I was informed I could find him on the internet & that he had been on the Mike Holmes show...I think introducing himself would be more professional..otherwise I am quite satisfied with the work & cleanliness of the job site & the finished project

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Nearby service areas in East

Interlock® metal roofing is also installed in these communities near Orléans:

Metal Roofing FAQs for Homeowners in Orléans

The following metal roofing FAQs are designed specifically for homeowners in Orléans, Ontario. 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 Orléans.

How does a metal roof handle Orléans' heavy snow and freeze-thaw cycles?

Metal roofs shed snow reliably because aluminum's smooth, hard surface resists the bonding that causes ice dams on asphalt. With about 144 cm of snow annually and roughly 89 freeze-thaw days per year in Orléans, thermal cycling that cracks asphalt and wood shingles leaves aluminum unaffected—the material neither swells nor contracts with temperature. Four-way interlocking panels lock together under snow load, and the aluminum alloy (3105-H24 / 3003-H24) maintains its strength through repeated thawing and refreezing. Many homeowners add snow guards for aesthetics or safety; the lightweight design (Shake profile at 0.58 lb/sq ft) means your existing structure handles the weight easily.

Why doesn't freeze-thaw damage hurt aluminum roofing the way it damages asphalt and wood?

Freeze-thaw cycles damage materials that absorb water and expand when it freezes; aluminum is impermeable and does neither. Orléans experiences about 89 freeze-thaw days yearly, along with roughly 883 mm of rainfall and deep winter snowpack. Asphalt absorbs water, expands, and cracks; wood shingles split as ice forms inside the grain. The roofing-grade aluminum alloy used in Interlock panels resists this cycle entirely. The Alunar® 70% PVDF coating sealed on both sides acts as a moisture barrier, so even in the moisture-rich winter environment around Orléans, water cannot penetrate the panel. Your roof simply endures the temperature swings without degradation.

Can a metal roof rust in Orléans' wet climate?

Aluminum cannot rust because it contains no iron, the element that corrodes. Even if the coating scratches, a passive oxide layer forms automatically on the aluminum surface (3105-H24 / 3003-H24 alloy), protecting the metal underneath. With Orléans receiving about 883 mm of rain annually and frequent freeze-thaw cycles, this self-healing property is invaluable. Steel roofing, by contrast, rusts and needs ongoing maintenance; Interlock's aluminum avoids that problem entirely. The Alunar® 70% PVDF fluorocarbon finish (warranted 30 years against chalking and fading) adds another layer of protection, but the aluminum itself is chemically stable in wet climates. You're buying a roof that won't corrode over decades, even in Orléans' damp conditions.

Will a metal roof blow off in Orléans' winter windstorms?

No. The four-way interlocking aluminum panels lock together mechanically, and Interlock roofs carry a warranty against wind speeds up to 120 mph (193 km/h) when installed to specification. Orléans sees typical daily winds around 18 km/h with occasional gusts reaching 92 km/h—well below that threshold. The interlocking design means each panel is secured to its neighbors along all four edges, not just fastened to the deck. This distributed locking system handles wind pressure far more effectively than overlapping shingles, which can lift and flutter. Your roof stays put through winter, and if you ever need documentation for insurance, you have a clear, tested wind-resistance warranty.

Does metal roofing hold up to hail, and can it lower insurance costs?

Interlock metal roofing earns UL 2218 Class 4, the highest impact rating available, and the warranty even covers perforation from hailstones up to 1.5 inches. The aluminum alloy (3105-H24 / 3003-H24) and the four-way interlocking structure distribute impact force across the panel system, not concentrating damage at one point. In Orléans, where severe hail is less frequent than in prairie regions but still a seasonal risk, this durability matters. Many homeowners see insurance discounts because underwriters recognize the reduced claim likelihood. We recommend checking with your provider, as some offer rate reductions specifically for Class 4 metal roofs. Over the roof's lifetime, hail resistance translates to fewer repairs and lower total cost of ownership.

What warranty comes with a metal roof, and how long does the roof actually last?

Interlock offers a lifetime limited, non-prorated material warranty for the original owner, covering rusting, rotting, splitting, cracking, curling, and loss of impact resistance—in effect, manufacturing defects and inherent material failure. The warranty is one-time transferable, so the next owner receives 50 years of coverage from completion. This clarity matters: you're not buying a 25-year or 30-year product; you're buying a roof designed to last generations. The 30-year Alunar® coating warranty (against chalking and fading per ASTM D4214 / D2244) ensures color stability. Homeowners who install Interlock typically find they never need another roof. A few retain it through home sales, passing the transferable protection to the buyer.

Can I get a metal roof that looks like slate, wood shake, or traditional tile?

Yes—Interlock offers five profiles: Slate, Cedar Shingle, Shake, Standing Seam, and Mediterranean Tile, each designed to match the appearance of the traditional material it mimics. The four-way interlocking aluminum panels replicate the texture and shadow lines, so from street level, the roofline reads authentically. The Slate profile suits classic homes; Cedar Shingle and Shake work for cottages and craftsman designs; Mediterranean Tile suits stucco or heritage properties; Standing Seam appeals to modern or farmhouse aesthetics. All profiles use the same roofing-grade aluminum alloy (3105-H24 / 3003-H24) with Alunar® coating, so durability is identical across styles. Choose the look you want without compromising performance or warranty—they're the same roof underneath.

How much maintenance does a metal roof really need compared to asphalt or wood?

Interlock metal roofing requires virtually no maintenance—no patching, resealing, or seasonal repairs. Asphalt shingles need resealing, shingle replacement, and regular inspection; wood shakes split and rot in Orléans' 144 cm average annual snowfall and 89 freeze-thaw days, requiring replacement and staining. Aluminum does not absorb moisture, so rot is impossible. The Alunar® 70% PVDF coating (warranted 30 years) prevents staining and fading. Occasional debris removal (leaves, pine needles) keeps gutters flowing, but that's the same for any roof. The CALGreen certification confirms reduced maintenance as a verified property. Over a 50-year roof life, you avoid hundreds in repair costs and labor, making the initial investment the lowest-cost roof to own.

How long does it take to install a metal roof, and can it go over my existing shingles?

Installation typically takes 3–7 days depending on roof size and complexity; the aluminum panels (Slate at 0.41 lb/sq ft, Shake at 0.58, Tile at 0.59) install quickly because they're one-sixth the weight of traditional materials. The lightweight design means most Orléans homes can accept a metal roof directly over existing asphalt shingles—no tear-off, no structural reinforcement. Roofers add ice-and-water shield and underlayment over the old roof, then fasten the interlocking panels. You avoid the cost and landfill burden of a full tear-off, and the additional insulation layer can even improve thermal performance. Our local installer, Interlock Metal Roofing (Ontario) Ltd., has served the region since 1998 and manages scheduling to minimize disruption. Current promotion includes interest-free payments for 3 months and savings of at least $2499.

Is metal roofing actually better for the environment than asphalt shingles?

Yes. Aluminum is approximately 95% recyclable, and Interlock panels are engineered to be recycled at end of life. Asphalt shingles, by contrast, are tear-offs destined for landfill—billions of tons every decade in North America, taking decades to break down. Every Orléans home that switches from asphalt to metal eliminates one more landfill load. Because metal roofs last 50+ years versus asphalt's 15–25 years, you buy fewer roofs in a lifetime, reducing overall material extraction and manufacturing emissions. The lightweight design (Tile about 96% lighter than clay or concrete tile) requires less structural timber during installation. Interlock's roofing-grade aluminum alloy (3105-H24 / 3003-H24) is produced from recycled sources and is infinitely recyclable—you're closing the material loop rather than opening it.

Is a metal roof a good choice for Orléans’s climate?

Yes. Orléans averages about 144 cm of snow, 883 mm of rain, roughly 89 freeze–thaw days a year, with peak wind gusts near 92 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.

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