Metal Roofing in Kendall, Washington — Lifetime Interlock® Aluminum Shingles Installed Locally
Kendall Metal Roofing Experts Installing Lifetime Interlock® Aluminum Shingles Since 1997
Metal Roofing Built for Kendall's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection
Interlock Metal Roofing (PNW) Inc. is Kendall, Washington’s trusted local metal roofing contractor, proudly serving homeowners since 1997. As the exclusive authorized installer of Interlock® lifetime aluminum roofing systems, we deliver unmatched performance, beauty, and durability tailored for the Pacific Northwest’s unique climate. Our heavy-gauge, fire-resistant, and energy-efficient cool roofs are engineered to withstand Kendall’s wet winters, heavy snowfall, and seasonal storms—shedding snow with ease and protecting your home year-round. Choose from slate, cedar shingles, shake, Mediterranean tile, or standing seam profiles for a timeless look with the proven strength of metal. Every Interlock roof is protected by the advanced Alunar® Coating System and backed by a Lifetime Warranty, ensuring your Kendall home stays safe, stylish, and secure for decades. For roof replacement or re-roofing, trust Interlock Metal Roofing (PNW) Inc.—the local experts in long-term roofing solutions.
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
Rain & Moisture Proof
Repels ~1489 mm of rain a year
Freeze–Thaw Durable
Endures ~50 freeze–thaw days a year
- Available through certified Interlock installers serving Kendall and surrounding areas of Whatcom County for factory-trained system installation
- Aluminum panels coated with the Alunar® Coating System (no visible aluminum surface) for long-term color stability and corrosion resistance
- 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 (120+ mph) to resist severe storm winds commonly experienced across Whatcom County
- Class A fire-rated available
- UL 2218 Class 4 impact resistance for protection against hail, falling branches, and storm debris
- Snow-shedding panel geometry reduces buildup and helps minimize ice-dam risk during Kendall’s occasional heavy snow and freeze–thaw cycles
- Energy-efficient cool-roof performance lowers heat gain during summer heat waves and improves attic comfort in Kendall homes
- Solar-compatible roofing engineered to accept modern bracket-mounted photovoltaic arrays without compromising the roof system
- Low-maintenance aluminum construction that resists rot and outlasts asphalt shingles in Kendall’s high-moisture environment
- Corrosion-resistant formulation designed for coastal moisture and intermittent salt-air exposure along Whatcom County shorelines
- Specifically built to withstand atmospheric-river driven rainfall events common to the Pacific Northwest, improving long-term roof integrity in Kendall
- Smooth, low-porosity finish that reduces moss and organic growth on shaded Kendall rooflines, cutting maintenance frequency
- Backed by a Lifetime-Limited transferable warranty to protect Kendall homeowners and preserve resale value
Metal roofing built for Kendall's climate
Averages (10-yr): ~1489 mm rain and 90 cm snow per year, ~2778 sunshine hours, mean 10.5°C, typical daily-max winds ~11 km/h with gusts to 133 km/h, and ~50 freeze–thaw days per year.
- 90 cmavg. snow / year
- 1489 mmavg. rain / year
- 50freeze–thaw days / year
- 133 km/hpeak wind gusts
- 2778 hrsannual sunshine
- 10.5°Cmean temperature
Interlock® aluminum roofing is engineered for these conditions — wind-rated to 193+ km/h (120 mph), UL 2218 Class 4 impact-rated, Class A fire-rated, and built to shed snow and resist ice dams and freeze–thaw cracking, backed by a lifetime limited warranty.
Interlock 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 [email protected]
- Toll-Free 1-866-733-5811
- Customer Service [email protected]
- 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 Kendall, Washington
Interlock® Aluminum Roofing — all-climates performance specs for Kendall, 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 Kendall, 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 Kendall, WA
Every marker is a real, anonymized Interlock® aluminum roof completed by a Certified Interlock Installer. Explore verified Interlock® installations near Kendall, 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 Kendall on the interactive project map →Browse all Interlock® projects in Washington →See more Interlock® projects →
What our customers are saying:
They could have improved by having better subcontracting and a better process on figuring out who to actually hire for the subcontractors. Patrick and Ivan went above and beyond trying to resolve the issues my wife and I had with the subcontractors.
I tried for several years to find a roof i would be happy with that would enhance the beauty of my property. I had been quite disappointed with the companies I was working with. When Interlock Roofing came along it was such a relief! Even though it did cost me more than other options, I feel like I received more value, especially long term, than any other offer I was considering. And I would not be as pleased with any other roofing system than I am with Interlock Roofing. Seriously, I can't think of a thing. I was surprised by everyone's attention to details. I was very pleased with the daily clean up of the job site. I have never driven down a road and exclaimed "that is a beautiful roof". Now people tell me I have a beautiful roof! It really is!
This is probably the most professional experience I have had in years. I was blown away. From the time I contacted them, they were on time and did exactly what they said they would do the whole way through. Someone is doing an excellent job of directing this company. I need to contact Paul or Ross because I have more roofs to put on. I would give them a rating of 475! My roof cost twice as much as any other bid, but I am ten times happier than I would have been with any other roof. People who see this roof compliment me on it. It will be spectacular once I finish the entire roof. The roof is stunning! There was no snow on the new roof when it stopped snowing last week; the snow simply slid off. It was incredible.
Weather in Northwestern Washington impacted the schedule by about 1 month, but that’s the weather we get
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!
Over all a good experience, but it's hard to recommend something after such a short time and people's needs are different. See above comments I think it's hard to evaluate a new roof with a lifetime warranty after a very short time and very little rain, but so far we're very happy.
Overall I didn’t have the greatest experience but that was primarily from the contracted installation crew and their lack of follow through with doing the roof right the first time. Otherwise I’m happy with the way the roof looks and the quality. And despite having to have part of it redone I appreciated the interlock rep going up in my attic and making the crew redo it correctly so I had a quality job. His honesty about the situation went a long way. I would have liked to choose when they were coming. When you’re paying upwards of 50k for a roof I would think you could have some say.
They can improve with a better communication between the installation crew and the client. If there was an Interlock member with the crew as a translator, that could have helped. The installation crew need more tarps and a magnet to pick up the remaining debris of nails. There was asphalt dust all over the yard. I believe it will be a good roof.
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.
Nearby service areas in Whatcom County
Interlock® metal roofing is also installed in these communities near Kendall:
Interlock Metal Roofing (PNW) Inc. also services nearby States
Beyond Kendall, our team installs Interlock® metal roofing across:
Metal Roofing FAQs for Homeowners in Kendall
The following metal roofing FAQs are designed specifically for homeowners in Kendall, 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 Kendall.
How does a metal roof handle Kendall's heavy snow and freeze-thaw cycles?
Aluminum's smooth, interlocking surface sheds snow efficiently without absorbing moisture, critical in Whatcom County where about 120 cm of snow falls annually alongside roughly 50 freeze-thaw days. The four-way interlocking panels expand and contract uniformly without cracking or curling, unlike asphalt or wood shakes that degrade under repeated freezing. The Shake and Cedar Shingle profiles can be equipped with snow guards to control sliding if desired, and the non-porous aluminum oxide layer won't trap meltwater that leads to ice dams.
Why can't aluminum roofs rust, and what does that mean for Kendall homes?
Aluminum contains no iron—the element that rusts—so corrosion as homeowners know it cannot occur. Instead, a thin, self-healing oxide layer forms instantly when aluminum is exposed to air, protecting the metal even if scratched. In Kendall's damp marine climate with about 1,489 mm of annual rainfall, this passive protection eliminates the rust vulnerability of steel alternatives. The Alunar 70% PVDF fluorocarbon finish is applied to both sides of every panel and is warranted 30 years against chalking and fading, adding an extra barrier in high-moisture environments.
Will a metal roof stay secure in Kendall's wind gusts?
Yes; the four-way interlocking panels interlock on all edges and are warranted to resist wind speeds up to 120 mph (193 km/h) when installed to specification. Kendall experiences typical gusts around 133 km/h—well within the rated capacity. The mechanical interlock design means each panel is locked to its neighbors, distributing lateral forces across the entire roof assembly instead of relying on fasteners alone. Combined with proper underlayment and deck attachment per ICC-ES ESR-1790, this system has proven durable in coastal and alpine installations across North America.
Can a metal roof reduce my homeowner's insurance costs in Kendall?
Interlock metal roofing achieves the highest hail-impact rating available—UL 2218 Class 4—and the warranty even covers perforation from hailstones up to 1.5 inches. This rating may qualify homeowners for insurance discounts or premium reductions; many insurers recognize the durability advantage. Given Whatcom County's exposure to severe weather systems, the non-denting aluminum alloy (3105-H24 / 3003-H24 per ASTM B209) and Guardian Warranty's explicit impact coverage provide concrete financial protection beyond what traditional roofing offers.
Does my home need structural reinforcement for a metal roof?
No. Interlock metal roofing is exceptionally light—the Mediterranean Tile profile weighs about 0.59 lb/sq ft, roughly 96% lighter than concrete or clay tile—so no structural reinforcement is required. Most existing roofs can accept the installation directly. This is especially valuable in the Pacific Northwest, where many older homes were not designed for the weight of slate or traditional tile. The light weight also reduces labor complexity and cost compared to heavy tile installations, making it practical to upgrade over an existing asphalt roof without structural work.
What does Interlock's lifetime warranty actually cover, and how long does it last?
The Guardian Warranty is a non-prorated, lifetime limited material warranty for the original owner, covering rusting, rotting, splitting, cracking, curling, and loss of impact resistance. It is transferable once to the next owner, who receives 50 years of coverage from the completion date—a significant advantage in a market where home turnover is common. This structure reflects Interlock's confidence in the 3105-H24 / 3003-H24 aluminum alloy and its track record manufacturing since 1998, including installations in Antarctic research stations and high-corrosion coastal environments.
Is a metal roof worth the upfront cost compared to asphalt shingles?
Over a 40–50 year horizon, metal roofing eliminates the cycle of asphalt replacement every 15–25 years. A single Interlock installation replaces multiple asphalt tear-offs, avoiding landfill disposal costs and labor disruption. Current financing—no payments and no interest until Spring 2027, or 10% off installation—reduces the initial barrier. Combined with potential insurance discounts (due to Class 4 hail rating), energy savings from energy-efficiency colors (reflectance up to 0.55), and the transferable 50-year warranty, the total cost of ownership is significantly lower than repeated asphalt cycles.
How does a metal roof perform in Kendall's heavy rainfall?
Interlock's four-way interlocking panels create a continuous, solid water barrier without relying on sealants that degrade over time. Kendall receives about 1,489 mm of rain annually, and the overlapping panel design sheds water laterally and downward by gravity—no standing water, no pooling. Installed over a solid deck with underlayment per ICC-ES ESR-1790, the system mimics the redundancy of a slate or tile roof. The aluminum oxide layer is non-porous and won't swell, rot, or absorb moisture, addressing the primary failure mode of asphalt and wood shakes in wet climates.
How much maintenance does a metal roof really need?
Metal roofing requires minimal maintenance—occasional gutter cleaning and inspection for debris accumulation, similar to asphalt. Unlike asphalt, there is no degradation from UV, no granule loss, no moss/algae growth encouraged by porosity, and no seasonal repair cycles. Wood shakes demand re-staining and rot treatment; slate and tile need regular resealing and mortar repair. Interlock aluminum resists all of these failure modes by design. The CALGreen-verified reduced maintenance profile translates to lower long-term labor costs and no emergency repairs, a practical advantage in Whatcom County's high-rainfall environment.
Is metal roofing actually more sustainable than asphalt?
Yes. Interlock panels are approximately 95% recyclable at end of life, eliminating the asphalt tear-off-to-landfill cycle that generates millions of tons of waste annually. Aluminum's properties—lightweight, durable, infinitely recyclable without degradation—mean a single Interlock installation avoids multiple asphalt replacements over its lifetime. The manufacturing process in Delta, BC uses established alloys (3105-H24 / 3003-H24 per ASTM B209) with well-established supply chains. For homeowners in Kendall concerned about environmental impact, metal roofing closes the loop: one roof, 50+ years, then back to the recycling stream.
Is a metal roof a good choice for Kendall’s climate?
Yes. Kendall averages about 90 cm of snow, 1489 mm of rain, roughly 50 freeze–thaw days a year, with peak wind gusts near 133 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.
