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THE INTERLOCK COLLECTION

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

Etna 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 Etna's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection

Interlock Metal Roofing (PNW) Inc. is Etna, 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 roofs are engineered to withstand Etna’s wet winters, heavy snowfall, and seasonal storms, providing superior snow shedding and long-term protection. With energy-efficient cool roof technology, our systems help keep your home comfortable year-round while reducing energy costs. Choose from the timeless elegance of slate, cedar shingles, shake, Mediterranean tile, or standing seam — all with the strength of metal and the advanced Alunar® Coating System for maximum weather resistance. Every Interlock roof is backed by a Lifetime Warranty, ensuring peace of mind and lasting value for your Etna home. For roof replacement or re-roofing, trust Interlock Metal Roofing (PNW) Inc. for the best in local expertise and proven protection.

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

  • Aluminum panels coated with the Alunar® Coating System (no visible aluminum surface) for long-term color retention 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 windstorms—benefit for exposed properties on higher sites in Clark County.
  • Designed to shed prolonged rainfall from atmospheric river events that periodically impact Etna, reducing ponding and leak risk.
  • Although Etna is inland, marine-influenced salt air can reach exposed ridge-top or river-adjacent homes in Clark County; aluminum with Alunar® coating resists salt-related corrosion.
  • Smooth, coated panels inhibit moss and organic growth common to Etna’s damp roof microclimates, simplifying maintenance.
  • Snow-shedding panel geometry minimizes accumulation and helps prevent ice dam formation during freeze–thaw cycles.
  • Robust seam design and aluminum substrate resist damage from cyclic freezing and thawing, preserving weatherproof integrity.
  • Class A fire-rated available for added protection where wildfire ember risk or seasonal brush fires are a concern.
  • UL 2218 Class 4 impact resistance for protection against hail, falling branches, and storm debris.
  • High-reflectance finish improves cool-roof performance, reducing heat gain during summer heat waves and lowering attic temperatures.
  • Engineered to accept bracket-mounted photovoltaic systems, supporting solar installations on Etna-area homes.
  • Fully recyclable aluminum roofing supports sustainability goals and reduces lifecycle waste compared with disposable shingles.
  • Architectural profiles replicate slate, cedar shake, and tile, while standing-seam options provide a mechanically fastened solution for different home styles.
  • Backed by a Lifetime‑Limited transferable warranty to protect long-term value and resale for Clark County homeowners.

Metal roofing built for Etna'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 Etna, 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 Etna, Washington:

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

Completed Interlock® metal roofs near Etna, WA

Every marker is a real, anonymized Interlock® aluminum roof completed by an Interlock Installer. Explore verified Interlock® installations near Etna, 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: August 19, 2024Completion: May 31, 2024

Discover why homeowners in Ridgefield, WA trust Interlock Metal Roofing (PNW) Inc. for metal roofing—professional, fast, and exceptionally tidy installations backed by a lifetime guarantee.

★★★★★
Review: May 10, 2017Completion: May 10, 2017

It was a very positive experience. I certainly would recommend people to at least talk to them. They have a product that makes sense, particularly for younger families.

★★★★★
Review: July 10, 2019Completion: June 24, 2019

You might find that more people are installing solar, as I am. You could go over details more thoroughly regarding process.

★★★★★
Review: August 12, 2025Completion: October 27, 2010

We have had our interlock roof on for over 15 years. Still looks great no problems. We are glad that we don't have to worry about a roof anymore. They stand behind warranty.

★★★★★
Review: September 12, 2015Completion: August 26, 2015

We were told that excess material would be left on site for future needs, but no material was left and no communication was given. We left a text message with Rolland to address the question, but didn't receive a reply.

★★★★★
Review: June 20, 2017Completion: October 19, 2016

Project was completed at nighttime, so the crew never returned the next day. That was fine, but they left behind metal scraps and loose nails on the ground, which they missed on the dark.

★★★★☆
Review: June 8, 2015

I have nothing against the product. The salesperson showed me the product and samples and I was impressed. Unfortunately, the price for that is completely outrageous (for me, since I'm retired).

★★★★☆
Review: April 7, 2026Completion: April 8, 2026

My wife and I wanted a long-term roof and I think we found it. The product seems very good and are installer Daniel was terrific and a trooper put a lot of hours and a lot of time and made it look real nice when it was completed. I would recommend the company if you're looking for a metal roof.

★★★★☆
Review: September 28, 2023Completion: July 13, 2023

. Communication between the actual roofers and myself and Interlock. Attention to detail on finish work of the roof (replacement of trim, caulking of adjacent wood trim, replacing siding damaged during install, etc). This was addressed after completion satisfactorily I was happy with Interlock/Renee’s/Patrick’s responsiveness to issues. Most problems were lack of communication with roofing team

★★★★☆
Review: September 10, 2015Completion: September 10, 2015

We look forward to working with them, just not this year.

Read all Washington metal roofing reviews →

Nearby service areas in Clark County

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

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

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

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