Metal Roofing in Russell, Washington — Lifetime Interlock® Aluminum Shingles Installed Locally
Russell Metal Roofing Experts Installing Lifetime Interlock® Aluminum Shingles Since 1997
Metal Roofing Built for Russell's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection
Interlock Metal Roofing (PNW) Inc. is the trusted local metal roofing contractor and exclusive authorized installer of Interlock® lifetime aluminum roofing systems in Russell, Washington. Since 1997, we have provided homeowners with premium roof replacement and re-roofing services designed specifically for the Pacific Northwest’s unique climate. Our heavy-gauge, fire-resistant, and energy-efficient cool roofs are engineered to withstand Russell’s wet winters, heavy snowfall, and seasonal storms, ensuring superior snow shedding and long-term protection. Choose from the timeless beauty of slate, cedar shingles, shake, Mediterranean tile, or standing seam profiles—all with the unmatched strength and durability of metal. Every Interlock roof is protected by the advanced Alunar® Coating System and backed by a Lifetime Warranty, making it the best choice for lasting performance, curb appeal, and peace of mind for your Russell, WA home.

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 ~60 freeze–thaw days a year
Corrosion Resistant
Aluminum won’t rust or corrode
- Available through authorized Interlock® installers serving Russell and Lewis County.
- Designed for Russell’s Pacific Northwest climate: persistent rainfall, cool damp roofs, and periodic windstorms.
- Precision weatherproof seams (profiles: slate, cedar, shake, tile) and mechanical fastening (profile: standing seam) deliver long-term leak protection during wind-driven rain events.
- Aluminum panels finished with the Alunar® Coating System (no visible aluminum surface) to resist corrosion and preserve color under frequent moisture.
- Engineered to withstand atmospheric-river-driven downpours that bring prolonged, high-volume rainfall to Russell and greater Lewis County.
- Coating and alloy selection mitigate corrosion from occasional coastal salt air that can reach lowland and estuarine areas of Lewis County.
- Smooth panel surfaces and Alunar® finish reduce moss and lichen adhesion common in Russell’s shaded, damp neighborhoods, simplifying maintenance.
- Tested to 193+ km/h (120+ mph) for resistance to severe wind events typical of Western Washington gusts.
- Snow-shedding panel geometry and continuous seams help reduce snow buildup and limit ice-dam risk during freeze–thaw cycles inland from the coast.
- Class A fire-rated available to provide ember resistance and enhanced protection where Lewis County faces seasonal wildfire risk.
- UL 2218 Class 4 impact resistance for protection against hail, falling branches, and storm debris.
- Reflective finish and thermal performance reduce summer heat gain, improving attic comfort during regional heat waves.
- Engineered for compatibility with modern bracket-mounted photovoltaic systems to simplify solar installations on Russell homes.
- Fully recyclable aluminum construction and low-maintenance finish support long service life in Russell’s wet, temperate environment.
- Backed by a lifetime-limited transferable warranty to protect long-term investment and resale value.
Metal roofing built for Russell's climate
Averages (10-yr): ~389 mm rain and 41 cm snow per year, ~3399 sunshine hours, mean 12.5°C, typical daily-max winds ~16 km/h with gusts to 91 km/h, and ~60 freeze–thaw days per year.
- 41 cmavg. snow / year
- 389 mmavg. rain / year
- 60freeze–thaw days / year
- 91 km/hpeak wind gusts
- 3399 hrsannual sunshine
- 12.5°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 (PNW) Inc.
- 5608 17th Ave NW suite 1574, Seattle, WA 98107, United States
- Phone 206-589-8423
- Local lines Bellevue 425-225-4805 · Bellingham 360-502-4018 · Tacoma 253-352-2725 · Stanwood 206-202-7814 · Vancouver 360-873-5878
- Sales & Marketing sales@washingtonmetalroofing.com
- Toll-Free 1-866-733-5811
- Customer Service pnwservice@interlockroofing.com
- www.WashingtonMetalRoofing.com
- License WA #INTERMR75406
- Serving Washington since 1997 — 28 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
- SaturdayBy appointment
- SundayBy appointment
Interlock Metal Roofing (PNW) Inc. – Washington is a trusted metal roofing contractor proudly serving homeowners and businesses throughout Washington State. With decades of experience in the roofing industry, Interlock has built a reputation for unmatched quality, reliability, and customer satisfaction. As a specialized installer of premium aluminum and standing seam metal roofs, Interlock is an exclusive authorized installer of top-tier roofing systems designed for performance, longevity, and weather resilience — specifically engineered for the Pacific Northwest climate. Founded on principles of craftsmanship and integrity, Interlock Metal Roofing (PNW) Inc. has completed thousands of roofing projects with precision and professionalism, earning the loyalty of customers from Seattle to Spokane. Our team is known for timely project delivery, transparent communication, and exceptional workmanship, backed by robust warranties and industry-leading materials. Interlock’s commitment to excellence has been recognized through local and regional industry awards for safety, quality, and customer service. We stand out for our rigorous training standards, OSHA-certified crews, and adherence to best practices in roofing performance and installation safety. Whether it’s a residential metal re-roof, commercial roof installation, or custom architectural metal roofing, Interlock Metal Roofing (PNW) Inc. brings trusted expertise, lasting product solutions, and an unwavering focus on client satisfaction. Homes and businesses throughout Washington choose Interlock as their go-to metal roofing specialist because we deliver durable, high-performance roofs that stand the test of time.
Recognition GuildQuality Guildmaster Award — verified customer satisfaction (GuildQuality)
Accredited BBB Accredited A+
Get a Free Metal Roof Estimate in Russell, Washington
Interlock® Aluminum Roofing — all-climates performance specs for Russell, Washington
| 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 Russell, Washington:
Explore all Interlock® metal roofing systems, or see the Guardian lifetime warranty and independent testing reports.
Recent Interlock® roofs across Washington
Completed Interlock® metal roofs near Russell, WA
Every marker is a real, anonymized Interlock® aluminum roof completed by a Certified Interlock Installer. Explore verified Interlock® installations near Russell, Washington, 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 Russell on the interactive project map →Browse all Interlock® projects in Washington →See more Interlock® projects →
What our customers are saying:
It's been about 6 weeks since our new roof was completed, and we are thrilled with the result. The whole process from start to finish was seamless and very efficient. As a salesperson myself, I was impressed with the 'no pressure' approach to selling us the roof and the information that was provided to us to make an informed decision on the type of roof for our home. We chose the black slate and it looks very smart and has transformed the look of our home considerably. Since the roof was installed, we have had the usual mixed bag of Washington weather - heavy rain, hail, strong winds, and frost. Our roof has been put to the test and passed with flying colors. Frank observed the installation process and was impressed with the seamless flashing, custom-made on site, and state of the art vent coverings. Our roof looks beautiful and stands out from the others in our neighborhood. We were particularly impressed with the workmanship of Victor and Mark Lomakin, the two men who installed the roof. They were punctual, fast, courteous, respectful, efficient and very professional. Our neighbors also commented on how well they worked. When the roof was complete, they cleared away all debris and even removed the unwanted satellite dish from our roof. It couldn't have gone better. We received all the financial documentation in a timely manner and all of the employees we have dealt with have been very knowledgeable and helpful. Our only criticism is that it would be nice to have an online payment facility for overpayments. Currently the only way to do that is to mail a payment to Canada but we don't have checks so we would have to purchase money orders and mail them as we intend to make over-payments along the way. We would happily recommend Interlock to anyone looking for a new roof. Kind regards Jennifer and Frank Herboldsheimer Ocean Shores, WA
Of the five name brand roofing contractors I screened for this project I chose Interlock and I am very pleased with the roof. Coordination and communication was critical especially since Interlock was to perform the installation immediately following another contractor performing a siding replacement. Communication with the interlock team was great and they remained flexible. Interlock was able to adjust their installation timeline as issues popped up with the siding project. Interlock promptly scheduled and dispatched materials and crew as soon as the siding contractor cleared out. I was a bit concerned about introducing a ">metal roof to the neighborhood, but could not be happier with the end result. In an effort to help tie everything together I had the siding contractor match the fascia wrap and gutters to the interlock ">roof black slate finish. The installation team was courteous, professional, and they notified me of any issues they ran across with the structure during the tear-off phase. Clean-up performed by the installation team was better than that performed by other contractors that had worked at the site. Great attention to detail and they took extra measures to protect sensitive areas around the house. I am currently working with their finance department as I Refinance the house and they are by far the friendliest finance team I have ever worked with. Great communication and customer care standards! The roof looks amazing and definitely grabs the attention of people driving by. The most amusing reaction so far was while I was watering the plants in the front yard a vehicle drove by, stopped abruptly, turned around, and pulled up into the driveway. A salesman in corporate attire for another roofing company stepped out of the vehicle and started asking questions about the roof. I was very familiar with the brand he represented because their product is rated among the best asphalt roofing products in the country. I thought that was quite amusing because here I am giving him contact information for a competitor . He was interested in something similar for his home so we talked for a bit about the Interlock Roof and he was very impressed. Reminded me of those old Coke versus Pepsi commercials.
Thanks for a very positive roofing experience! Our new roof is so beautiful we’re thinking of charging a fee to all the gawking neighbors that stop by to admire it!!! This was fun, positive experience from start to finish. Our sales rep spent three hours at our home going over every possible detail with us. He was knowledgeable, friendly and answered all our questions. As you can see by the pictures we have a pretty basic roof. There was no tear off to do; still, our three installers were 80% done on the very first day! Everything was done and cleaned up to our satisfaction by the end of day two. Our installers were friendly, courteous and hard working. I watched them for a few minutes as they all worked like a finely tuned machine installing our roof in perfect rhythm. For us, Interlock meant that the third time was the charm. We’d tried to do business with two other companies. The first took a large amount of money as a down payment and gave absolutely no customer service for two months. We got our money back and started over. The second company gave an inaccurate bid. Needless to say, we entered into this contract with some trepidation. interlock is a fabulous company and we’d recommend them to anyone in the market for a new roof!
We are writing this letter to show our appreciation for the wonderful job that was done on our roof. From the date your company representative met with us in our home to the date of completion, words cannot express how completely satisfied we are with your company. We definitely wanted a quality roof and were very impressed by the representation that was given to us. The product you provide was enough for us to make our decision, however it was a huge plus not to have to deal with a pushy salesman and to have such polite, friendly and hard working men providing the service. It was a pleasure to have them around our home. The quality, craftsmanship and lifetime warranty of this ">roof far outweighs the increased costs over other roof systems. However, other roof systems don't come with lifetime warranties and many only last for 8 to 10 years. We may have paid a little more initially, but how wonderful it is to know we will never have to re-roof our home again. And in addition to all of the above, it looks so beautiful and has added so much style to our home. I never dreamed a roof could make such a difference. Again, Thank you so much and be sure to know we will highly recommend your company to all of our family and friends.
I am very pleased with the entire experience with Interlock Roofing. Ross did a fantastic job of showing me all of the options available, and explaining how Interlock is different from other roofing. This was not a hard sales pitch. I was pleasantly surprised by how affordable a metal roof was. I had five other estimates for a traditional composite roof, and the price difference for a forever roof was negligible considering all the benefits. Next, the installation. These guys were amazing! Only two guys doing the demo and reroof, but very hard workers and did a fantastic job. It seems rare these days to find skilled tradesmen that take pride in their work, and these guys exceeded my expectations. I also took advantage of Interlock’s financing. Drew was very helpful and accommodating. The whole process was taken care of through Interlock, making it super convenient and great communication throughout. I will highly recommend:)
I installed a new metal interlock roof on my home in Anacortes. A big part of the cost was removing the existing concrete tiles from my roof which are a challenge. From the beginning working with sales, Paul and Ross was a pleasure...very responsive and professional. The installion crew and project managers, Tony and Patrick were terrific to work with. There were a few complications due to the existing roof but the Interlock team worked with me to resolve those issues. The crew were punctual and the installation proceeded on schedule. The cleanup was immaculate. My main goal was NOT to see any further leaking in my lifetime and hopefully that will be achieved. The roof looks great. If you are in the market for a metal roof, I would certainly recommend Interlock.
Positive: Professionalism, Punctuality, Quality, Responsiveness, Value Thank you Interlock for our beautiful new roof! Installation was great from start to finish. We have lots of neighbors walking by and saying “wow” and that it doesn’t look like a metal roof. We are so happy to have our “forever” roof and to never have to re-roof again! 😀 Only wish we had done it SOONER! ">" alt="After\_WAEV21051\_Woodinville-WA-98077\_Interlock-Metal-Roofing\_Deep-Charcoal-Aluminum-Roof-Shingles-Solar-Crystalline-Panels-2" width="300" height="225" /> ">" alt="After\_WAEV21051\_Woodinville-WA-98077\_Interlock-Metal-Roofing\_Deep-Charcoal-Aluminum-Roof-Shingles-Solar-Crystalline-Panels-1" width="300" height="225" />
Just a few days ago my husband and I were excited to see our new Interlock aluminum roof completed in the gorgeous eye popping finish of copper penny shake topping our newly purchased log home in Bellingham WA. We are so thankful for the signage that the company uses when completing new roofs because when we were first looking at our home and considering a purchase we happened to drive by a house just down the road that had the same " title="copper" data-wpil-keyword-link="linked">copper finish aluminum Interlock roof that we eventually decided on. Seeing this roof installed on another house was the impetus that we needed to call the company and begin our inquiry well before we even purchased our home. We did our homework and considered other roofing materials and companies, but Interlock stood out in our minds as our top choice. The Interlock salesmen, Ross and Paul also went out of their way to come and look at the home and the roofing and bring samples to put on the roof for us to see during our inspection period. They also met with us immediately after closing on a Sunday as we wanted to lock in on a date for installation as soon as we could. We have a very large square footage of roofing, as well as a roof line that is very prominent on the house and we wanted to do something to enhance the stately character for what is definitely a very magical house and property. We have only now owned our house for less than two months, and already have our beautiful new roof completely installed. As we closed on our house in mid-October and we live in the Pacific NW near the Canadian border, this is already a feat. The team of roofers who were sent by Interlock to do our installation were some of the hardest working, most focused, and skilled labor crew we have had the pleasure of coming across. They completed the job in 2.5 weeks, working weekdays and Saturdays, arriving at 7:30 AM and working until 6 PM into the darkness with headlamps on. They worked in rain, cold, and very windy conditions, removing 90,000 lbs. of clay " data-wpil-keyword-link="linked">tile roofing and replacing it with the Interlock 100 year warrantied high quality roofing. The team was extremely respectful, also replacing a skylight that we added to the job mid-way and reinforcing roofing around other skylights that appeared to be leaking. All members of the Interlock company that we have spoken with or had contact with otherwise have been friendly and personable, respectful, and quickly and effectively addressed any questions or issues that we have brought to their attention. We feel safe and secure under our beautiful and functional Interlock roof that is quiet when it rains and lets the water run off in rivulets into the eaves. We thank everyone at Interlock and hope to have a long and successful relationship with Interlock and our new roof.
We are very pleased with our new roof installed by Interlock Metal Roofing. The house looks beautiful, more than I imagined. You Paul Wright, as our salesman, are appreciated for all the information about the product and the no pressure approach you do. The installers were wonderful. They were great to work with—cleaned the area around the house each night. Our house was three days from start to finish …amazing to watch. We couldn’t be happier with the service and the product.
To Whom It May Concern: It is our pleasure to highly recommend Ross and Interlock Roofing for your next roofing project. Our roof was installed in August of 2017 it’s amazing the performance it provides to our home. The temperature indoors during the summer is cooler allowing energy savings, our Shake profile stands out with lasting beauty and durability. The installation crew is as great as the product they are polite and professional and went above our expectations they answered all our questions with no concerns. Our investment to have Interlock roof on our home gives us Peace of mind knowing for years to come we will never have to worry about our roof again. We would not hesitate to recommend Interlock Roofs and their awesome products to anyone looking for a new roof.
We just wanted to let you know how thoroughly-pleased we are with our new Interlock Roof. It is absolutely beautiful and we have had a lot of people stopping as they walk or drive by to admire how nice it looks. Everything progressed on the job exactly as you had shared with us when we signed the contract. There were no surprises. From the beginning when we got the call to set up a start date, to the final clean up and retrieval of the waste bin everything was handled so professionally. Viktor and Alex were a dream to work with-so-pleasant and each day everything was left so tidy that it would have been hard for guests to tell that we were in the middle of a re-roofing job. We will highly recommend your product and doing business with such a professional and obviously well run company.
What a substantial difference the Interlock aluminum roof has made to the appearance of my hundred year old house. The haunted house look changed instantly into desirable real estate. The people who sold me the house have said they wish they had asked more for it now! My previous roofer, who I have used for many years on five different roofs with excellent results; drove by and said he knew it was a good job. He also wanted to recommend Interlock roofing to another customer who wanted something better than composition roofing. The service was great, the sheet metal engineers were industrious, exacting workers, and there have been no problems with anything. It looks so solid and neat; I cannot describe it exactly, but I will never be happy with composition roofing again. The leaves slide right off so it is always clean, and shows off the gables and fancy lines of the house so well... I love it!
Nearby service areas in Lewis County
Interlock® metal roofing is also installed in these communities near Russell:
Interlock Metal Roofing (PNW) Inc. also services nearby States
Beyond Russell, our team installs Interlock® metal roofing across:
Metal Roofing FAQs for Homeowners in Russell
The following metal roofing FAQs are designed specifically for homeowners in Russell, Washington. 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 Russell.
Will a metal roof hold up through Russell's freeze-thaw cycles?
Yes, aluminum expands and contracts safely through freeze-thaw cycling because it has no grain structure like wood and cannot crack or split. Russell experiences about 60 freeze-thaw days per year alongside roughly 41 cm of annual snow, conditions that would degrade asphalt and cause wood shakes to cup and check. Interlock's roofing-grade 3105-H24 aluminum alloy (ASTM B209) was proven in the field from coastal homes to Antarctica. The material's uniform expansion coefficient and inherent flexibility mean your roof adapts to temperature swings without material fatigue. That's why the Guardian Warranty specifically covers splitting and cracking—they simply don't occur in aluminum.
Can an aluminum metal roof rust in the Pacific Northwest?
Aluminum cannot rust because it contains no iron; instead, it forms a self-healing oxide layer that seals itself when scratched. In Russell's moist climate with 389 mm of annual rainfall and occasional gusts to 91 km/h, this matters more than in dry regions. Steel roofs oxidize and require painting; aluminum does not. To reinforce protection in salt-air and wet environments, Interlock applies Alunar 70% PVDF fluorocarbon coating to both sides of every panel and warrants it 30 years against fading and chalking (ASTM D4214 / D2244 measured). The two-sided coating is unusual—it's there because aluminum's durability in harsh climates depends not on the metal alone but on this proven finish.
How does a metal roof handle snow load and ice dams in Russell?
Metal roofs shed snow faster than asphalt because their smooth, interlocking surface reduces friction; ice dams form where heat escapes through poor insulation, not because of roof material. Russell receives about 41 cm of snow annually, and proper attic ventilation and insulation—not the roofing material—prevent dams. Interlock's four-way interlocking aluminum panels lock together so tightly that snow cannot penetrate seams, and the lightweight profile (Shingle at 0.41 lb/sq ft) means you're not loading your structure with ceramic or concrete tile weight—about 96% lighter, so existing framing needs no reinforcement. Snow guards can be added if you prefer controlled release. The warranty covers wind up to 120 mph, well beyond Russell's typical 16 km/h mean winds with gusts to 91 km/h.
Do I need to reinforce my roof structure to install a metal roof?
No structural reinforcement is needed because aluminum weighs almost nothing compared to slate or tile. Russell homes built for traditional asphalt (15 to 20 lb/sq ft) can install Interlock's Tile profile at 0.59 lb/sq ft—about 96% lighter than concrete or clay tile. The Shake profile weighs 0.58 lb/sq ft and Shingle just 0.41 lb/sq ft. This matters in a region with 41 cm annual snowfall and occasional wind gusts to 91 km/h, because your framing doesn't bear extra static weight, leaving structural capacity for seasonal snow and wind loads without modification. Aluminum is roofing-grade 3105-H24 / 3003-H24 alloy (ASTM B209), engineered for span and durability. Most homes install metal over existing roofs without touching the structure.
Does a metal roof qualify for hail damage insurance discounts?
Interlock metal roofing achieves UL 2218 Class 4 impact rating, the highest available, and the warranty even covers perforation from hailstones up to 1.5 inches. While Russell's climate data shows typical gusts to 91 km/h rather than extreme hail frequency, the Class 4 rating provides absolute protection and may qualify you for homeowners insurance discounts. Class 4 means the roof withstood 2-inch steel balls dropped from 20 feet without cracking or losing impact resistance. Aluminum's flexibility absorbs impact energy without brittle failure, unlike asphalt (which cracks) or slate (which shatters). Contact your insurer about discounts; some offer 10–20% reductions for Class 4-rated roofs. Ask Interlock Metal Roofing (PNW) Inc. about your specific coverage.
Will a metal roof reduce cooling costs at my Russell home?
energy-efficient colors with thermal emissivity 0.84 and solar reflectance up to 0.55 reflect heat that asphalt absorbs, reducing air-conditioning load in summer. Russell receives about 3399 sunshine hours annually; even in the Pacific Northwest, reflected heat compounds over the cooling season. Cool Roof Rating Council testing validates this performance. Lighter colors (like Aged Copper Penny at 0.55 reflectance) bounce solar radiation rather than converting it to attic heat. In winter, this same reflectance doesn't harm heating because Russell's mean temperature is 12.5°C and snow cover provides additional insulation. The net benefit is lower summer cooling demand without winter heating penalty. published solar-reflectance listing means verified performance, not marketing.
Is metal roofing non-combustible and Class A fire-rated?
Yes, aluminum is non-combustible and Class A fire rating is available. Roofing-grade aluminum cannot ignite because it contains no fuel; it will not propagate fire, ember, or flame even in extreme conditions. Class A is the highest fire-safety rating for roofing materials under ASTM E108. Interlock's ICC-ES evaluation report ESR-1790 (reissued 2025 for IBC/IRC code compliance) documents this. In Russell's wet climate with 389 mm annual rainfall, fire risk is lower than in dry regions, but Class A availability means you meet the strictest building codes and may lower homeowners insurance premiums in fire-rated communities. Asphalt shingles are Class C at best; wood shakes are unrated and burn readily. Aluminum's inherent non-combustibility is a permanent safety advantage.
How much maintenance does a metal roof really need?
Interlock metal roofing needs virtually no maintenance compared to asphalt, wood, or tile. Asphalt shingles require periodic inspection and replacement within 15–20 years in Russell's freeze-thaw and wet climate; wood shakes split and curl and must be individually replaced; slate and tile crack and require specialist repair. Aluminum with Alunar 70% PVDF coating (warranted 30 years against fading and chalking) survives Russell's 60 annual freeze-thaw cycles and 41 cm snowfall without degradation. The Guardian Warranty is lifetime limited (non-prorated for the original owner), covering rusting, rotting, splitting, cracking, and curling—simply because none of these occur. Rinse debris after storms if desired; that's it. CALGreen verification confirms reduced maintenance liability.
What warranty comes with an Interlock metal roof, and how long will it last?
The Guardian Warranty is lifetime limited and non-prorated for the original owner, covering rusting, rotting, splitting, cracking, curling, and loss of impact resistance. The warranty is one-time transferable, giving the next owner 50 years of coverage from completion, adding resale value. This breadth exists because aluminum cannot rust (no iron), cannot rot (no organic matrix), and its Alunar 70% PVDF coating is warranted 30 years against fading and chalking (ASTM D4214 / D2244). In Russell's 389 mm annual rainfall and 60 freeze-thaw days, these protections align with climate stressors. You're buying the last roof: aluminum installed to spec in 1998 is still performing in coastal salt-air homes and Antarctica. Asphalt requires replacement every 15–20 years in wet climates; metal roofs routinely outlast the homes they cover.
How long does installation take, and can a metal roof install over my existing roof?
Installation typically completes in 3–7 days depending on roof size and complexity; Interlock Metal Roofing (PNW) Inc. has served the region since 1997 and can confirm your timeline. Yes, most homes install metal directly over existing asphalt shingles without tear-off, saving labor and landfill waste. Metal's extreme light weight—Tile at 0.59 lb/sq ft, about 96% lighter than concrete or clay tile—means no structural reinforcement and no added load to framing. Proper underlayment and ventilation ensure attic moisture control in Russell's wet climate (389 mm annual rainfall, 41 cm snow). Your installer applies ice-and-water shield, synthetic underlayment, and ventilation as code requires under the interlocking panels. Tear-off and disposal become optional, reducing cost and environmental impact. Interlock's ICC-ES report ESR-1790 documents retrofit installation compliance.
Is a metal roof a good choice for Russell’s climate?
Yes. Russell averages about 41 cm of snow, 389 mm of rain, roughly 60 freeze–thaw days a year, with peak wind gusts near 91 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.













