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THE INTERLOCK COLLECTION

Metal Roofing in Ariel, Washington — Lifetime Interlock® Aluminum Shingles Installed Locally

Ariel Metal Roofing Experts Installing Lifetime Interlock® Aluminum Shingles Since 1997

What do Interlock customers in Washington say?

Interlock has 734 published customer reviews from Washington, covering installations reviewed between 1999 and 2026. They average 4.7 out of 5, with 669 collected through independent GuildQuality surveys. Interlock® Slate is the most frequently installed system in the region, appearing in 287 of these projects. Across the surveys that scored individual categories, quality of materials rates highest at 4.9 out of 5.

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

Interlock Metal Roofing (PNW) Inc. is Ariel, 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. Ariel’s weather demands a roof that can withstand heavy rain, snow, and wind—our heavy-gauge, fire-resistant, and energy-efficient cool roofs are engineered for superior snow shedding and long-term protection. Whether you prefer the classic look of slate, cedar shingles, shake, Mediterranean tile, or modern standing seam, our roofs combine timeless style with the proven strength of metal. Every installation is protected by the advanced Alunar® Coating System and backed by a Lifetime Warranty, ensuring your Ariel home stays safe, beautiful, and energy-efficient for decades. Choose Interlock Metal Roofing (PNW) Inc. for the best roof replacement and re-roofing services in Ariel, Washington.

Interlock metal roofing styles including slate, cedar, shake, tile, and standing seam in Ariel, Washington

Performance you can measure (all climates)

Weather Resistant

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

Durable

Lifetime-Limited, transferable warranty

Rain & Moisture Proof

Repels ~2163 mm of rain a year

Energy Efficient

Reflective cool-roof lowers cooling costs

Snow-Shedding

Built for ~163 cm of snow a year

Impact Resistant

UL 2218 Class 4 — top hail rating

  • Coated with the Alunar® Coating System (no visible aluminum surface) for continuous finish adhesion and reduced corrosion potential in Ariel’s persistently damp conditions
  • 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) for severe windstorms, providing a performance margin for gust events that impact Ariel and Cowlitz County
  • Waterproof installation details minimize leak risk during atmospheric river events that frequently affect Ariel and the lower Lewis River valley
  • Snow-shedding panel geometry reduces seasonal buildup and helps prevent ice dams during the freeze–thaw cycles seen in inland Washington
  • Panels and fastener systems retain seal integrity through rapid temperature swings common to Ariel’s river-valley microclimate
  • Although Ariel is inland, periodic lowland marine air can reach Cowlitz County; the Alunar® finish and aluminum substrate offer enhanced resistance to salt-driven corrosion compared with bare metals
  • Smooth coated surfaces and steep panel profiles limit moss and biological growth, making seasonal cleaning in Ariel’s moss-prone, high-humidity environment simpler
  • Class A fire-rated available for added ember resistance and reduced ignition risk on wooded or brush-adjacent properties around Ariel
  • UL 2218 Class 4 impact resistance for protection against hail, falling branches, and storm debris during Pacific Northwest storms
  • Cool-roof characteristics reduce solar heat gain during summer heat spells, improving attic comfort and lowering HVAC demand in Ariel homes
  • Engineered for rooftop solar: bracket-compatible attachment points support modern photovoltaic systems and Cowlitz County installation practices
  • Fully recyclable aluminum supports sustainable lifecycle goals and reduces long-term disposal compared with asphalt roofing
  • Architectural options replicate slate, cedar shake, and tile while offering standing-seam profiles for contemporary or traditional curb appeal in Ariel neighborhoods
  • Backed by a lifetime-limited transferable warranty to provide measurable protection and preserve resale value for homeowners in Ariel and throughout Cowlitz County

Metal roofing built for Ariel's climate

Averages (10-yr): ~2163 mm rain and 163 cm snow per year, ~2764 sunshine hours, mean 11.4°C, typical daily-max winds ~14 km/h with gusts to 115 km/h, and ~22 freeze–thaw days per year.

  • 163 cmavg. snow / year
  • 2163 mmavg. rain / year
  • 22freeze–thaw days / year
  • 115 km/hpeak wind gusts
  • 2764 hrsannual sunshine
  • 11.4°Cmean temperature

Roof performance depends on the selected profile, tested assembly, roof structure and installation details. Class A fire-rated assemblies are available. Confirm applicable ratings in the testing reports and review the limited warranty before selecting a system.

Interlock Metal Roofing (PNW) Inc.

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+

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Interlock® Aluminum Roofing — all-climates performance specs for Ariel, Washington

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 Ariel, Washington:

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

Completed Interlock® metal roofs near Ariel, WA

Every marker is a real, anonymized Interlock® aluminum roof completed by an Interlock Installer. Explore verified Interlock® installations near Ariel, 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.

4.7 / 5 — from 734 verified customer reviews in Washington

What our customers are saying:

★★★★★
Review: September 8, 2026Completion: August 31, 2026

I had a fantastic experience with Interlock Metal Roofing! Their team was incredibly easy to work with and very responsive to all of my questions throughout the entire process. I want to give a special shout-out to our installers, Victor and Daniel. They were extremely professional, friendly, and did an amazing job installing our new roof. The new metal roof looks absolutely amazing! I highly recommend them to anyone looking for a high-quality roofing experience.

★★★★★
Review: October 4, 2022Completion: October 4, 2022

Interlock Roofing is amazing. From the first day I met their salesman to the day they started work on our barn and house. They were very easy to talk to and express our concern about how important it was to keep our hay safe from rain and the ground around the barn safe for the animals. They were fast exceptionally clean and so much fun to get to know. I definitely would recommend this company to anyone who wants to have a roof that will last a life time. Thank you for an amazing job and two beautiful roofs!

★★★★★
Review: June 7, 2022Completion: May 31, 2022

They all did a great job. Really liked the install crew. Was a pleasure...not sure where anyone could improve.

★★★★★
Review: June 15, 2017Completion: August 26, 2016

Homeowners in Kalama, WA are thrilled with their new metal roofing from Interlock Metal Roofing (PNW) Inc., praising the superb planning, installation, and cleanup, the durable aluminum shingles that keep their mountain home cooler in summer and warmer in winter, and the long-lasting value and curb appeal that have made their Interlock roof the envy of the neighborhood.

★★★★★
Review: October 17, 2023Completion: September 27, 2023

They did a great job on the roof, and it looks great. There was a little confusing with setting up the payments, but Rene was nice with helping me figure everything out.

★★★★★
Review: May 6, 2021Completion: March 12, 2021

Professional and timely, installation was ahead schedule. A post (1-2 months) inspection done by non installers.

★★★★★
Review: July 6, 2018Completion: June 8, 2018

Communication between customer, installer and scheduler. The installation start date was not communicated between all parties effectively. Overall I'm impressed with all of the interlock team and the product.

★★★★★
Review: January 10, 2017Completion: January 10, 2017

Needed to put this project on hold, due to other issues that have arisen. You will be the first people we call when we are ready to roof our home.

★★★★★
Review: April 9, 2022Completion: March 11, 2022

I had originally planned to use the product on a new building but needed an older house reroofed. Newer building has been put on hold for now.

★★★★☆
Review: November 14, 2019Completion: October 2, 2019

COMMUNICATION!!Don't make appointments and then not show up, don't miss appointments and make customers call for days to find out why and when the new appointment will be just to not show up again. ANSWER the PHONE when people call, having customers sit without information is infuriating and just makes them unhappy from the start. So...Communication and customer service improvement would be great. We were very upset with the wasting of our vacation time...

★★★★☆
Review: July 11, 2018Completion: July 11, 2018

Interlock has the best roof. I wish I could afford it.

★★★★☆
Review: August 9, 2018Completion: July 31, 2018

Timeliness, management communication with the customer.Not at this time. Dissappointed in time it took to complete project.

Read all Washington metal roofing reviews →

Nearby service areas in Cowlitz County

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

Interlock Metal Roofing (PNW) Inc. also services nearby States

Beyond Ariel, our team installs Interlock® metal roofing across:

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