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THE INTERLOCK COLLECTION

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

Novelty 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 Novelty'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 Novelty, Washington. Since 1997, we have helped homeowners in Novelty protect their homes with heavy-gauge, fire-resistant, and energy-efficient roofs engineered for the unique Pacific Northwest climate. Our Interlock Lifetime Roofing System is designed to withstand heavy rain, snow, and wind, making it the ideal choice for Novelty’s variable weather. The advanced Alunar® Coating System ensures long-term durability and beauty, while our cool roof technology helps reduce energy costs year-round. Choose from slate, cedar shingles, shake, Mediterranean tile, or standing seam profiles for a timeless look with unmatched strength. Every roof replacement and re-roofing project is backed by our Lifetime Warranty, providing peace of mind and lasting protection for your Novelty home.

Interlock metal roofing styles including slate, cedar, shake, tile, and standing seam in Novelty, 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 ~1761 mm of rain a year

Energy Efficient

Reflective cool-roof lowers cooling costs

Snow-Shedding

Built for ~194 cm of snow a year

Freeze–Thaw Durable

Endures ~58 freeze–thaw days a year

  • Authorized Interlock® installer serving Novelty homeowners and surrounding King County neighborhoods
  • Designed for Novelty’s Pacific Northwest conditions: persistent heavy rainfall, seasonal windstorms and freeze–thaw cycles
  • Precision weatherproof seams (profiles: slate, cedar, shake, tile) and mechanical fastening (profile: standing seam) deliver long-term leak protection during wind-driven rain events
  • The aluminum is Coated with the Alunar® Coating System (no visible aluminum surface) for enhanced corrosion and color retention
  • Interlocking panels tested to 193+ km/h (120+ mph), providing verified resistance to severe windstorms common to King County
  • Snow-shedding metal panels reduce rooftop snow loads and help prevent ice dams during Novelty’s occasional winter snow and thaw cycles
  • Class A fire-rated available for added protection during dry-season ember or brush-fire exposures in vulnerable King County parcels
  • UL 2218 Class 4 impact resistance reduces damage from hail, falling branches and storm debris
  • Energy-efficient cool-roof performance lowers summer heat gain and pairs with bracket-mounted solar PV systems for Novelty home electrification
  • Corrosion-proof aluminum construction minimizes long-term degradation in the damp Pacific Northwest environment
  • Premium architectural profiles replicate slate, cedar shake and tile while offering standing-seam options to match Novelty neighborhood aesthetics
  • Low-maintenance finish and durable panel design extend service life beyond asphalt shingles in Novelty’s moisture-prone climate
  • Backed by a Lifetime‑Limited transferable warranty to protect investment and resale value in King County real estate markets
  • Atmospheric-river protection: seams and interlocks maintain integrity during prolonged, high-volume downpours that affect Novelty and the greater Puget Sound region
  • Coastal salt-air readiness: Alunar®-coated aluminum resists salt-corrosion for Novelty properties with exposure on ridgelines or parcels nearer Puget Sound
  • Moss and biological growth control: smooth coated surfaces and steep-shedding profiles reduce moss, lichen and algae accumulation in Novelty’s cool, damp conditions

Metal roofing built for Novelty's climate

Averages (10-yr): ~1761 mm rain and 194 cm snow per year, ~2743 sunshine hours, mean 9.8°C, typical daily-max winds ~11 km/h with gusts to 128 km/h, and ~58 freeze–thaw days per year.

  • 194 cmavg. snow / year
  • 1761 mmavg. rain / year
  • 58freeze–thaw days / year
  • 128 km/hpeak wind gusts
  • 2743 hrsannual sunshine
  • 9.8°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 Novelty, 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 Novelty, Washington:

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

Completed Interlock® metal roofs near Novelty, WA

Every marker is a real, anonymized Interlock® aluminum roof completed by an Interlock Installer. Explore verified Interlock® installations near Novelty, 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: February 11, 2026Completion: January 29, 2026

The installation was very high quality, and I am happy with the installation and the roof that was provided by Interlock. I am really happy with the service, quality, and workmanship. I would like to recognize Ross, Tony, and Roma for their exceptional service. I think they did everything they could; there is no area for improvement.

★★★★★
Review: August 27, 2026Completion: February 1, 2020

2nd time around with Interlock, first time for house and now a few years later for my garage. Quality of product and installation are excellent and it matches the house roof perfectly. Expensive but in Washington what would you rather have a roof that last a lifetime or a 30year shingle that’s done in 10? The PNW is hard on roofs don’t keep paying!

★★★★★
Review: September 9, 2015Completion: June 20, 2015

Hire a project manager to work with your customers I am very happy with the end result, but the lack of communication is a seriously concerning for a customer.

★★★★★
Review: September 19, 2018Completion: August 27, 2018

We are very happy!

★★★★★
Review: November 16, 2016Completion: October 22, 2016

Should have specified that chimney flashing had to be replaced, as was my understanding. Leaving flashing in place - Interlock assumed lifetime warranty for someone else's work. I am extremely happy with the roof look, finish and the design. Installation went well even though we are still working through some leak issues.

★★★★★
Review: November 12, 2018Completion: October 1, 2018

Better communicate when the scheduled installation date is going to happen. Interlock needs to be more upfront and honest about how the roof is sensitive to foot traffic. When people walk on the shingles they risk causing the shingles to bend permanently. This is a disadvantage that interlock should openly explain to prospective customers.

★★★★★
Review: May 8, 2018Completion: April 16, 2018

They are too expensive.

Read all Washington metal roofing reviews →

Nearby service areas in King County

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

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

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

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