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THE INTERLOCK COLLECTION

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

Maple Falls 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 Maple Falls's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection

Interlock Metal Roofing (PNW) Inc. is Maple Falls, Washington’s trusted metal roofing contractor, proudly serving local homeowners since 1997. As the exclusive authorized installer of Interlock® lifetime aluminum roofing systems, we deliver unmatched performance, beauty, and durability tailored for the unique Pacific Northwest climate. Our heavy-gauge, fire-resistant roofs are engineered to withstand Maple Falls’ heavy snowfall, frequent rain, and seasonal temperature swings, ensuring superior snow shedding and long-term protection. With energy-efficient cool roof technology, our systems help reduce energy costs while providing a timeless look—choose from slate, cedar shingles, shake, Mediterranean tile, or standing seam styles. Every installation is protected by the advanced Alunar® Coating System and backed by a Lifetime Warranty, making Interlock the best choice for roof replacement and re-roofing in Maple Falls, WA.

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

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

Impact Resistant

UL 2218 Class 4 — top hail rating

Freeze–Thaw Durable

Endures ~50 freeze–thaw days a year

  • Precision weatherproof seams (profiles: slate, cedar, shake, tile) and mechanical fastening (profile: standing seam) deliver long-term leak protection during wind-driven rain events
  • Interlocking panel system tested to 193+ km/h (120+ mph) to resist severe windstorms and gusts common to the Maple Falls corridor
  • Aluminum is Coated with the Alunar® Coating System (no visible aluminum surface) for color retention, UV stability, and enhanced corrosion resistance
  • Corrosion-resistant aluminum finish defends Maple Falls roofs against persistent coastal moisture and airborne salts that travel into Whatcom County valleys
  • Engineered snow-shedding profiles reduce roof snow accumulation and lower ice-dam risk during heavy winter storms and freeze–thaw cycles near Mount Baker
  • Built to accommodate regional snow loads and rapid temperature swings typical of Maple Falls’ mountain-adjacent climate
  • Class A fire-rated available for added defense during seasonal ember-risk periods in forested areas of Whatcom County
  • UL 2218 Class 4 impact resistance helps protect Maple Falls homes from hail, falling branches, and windborne debris
  • Cool-roof properties improve summer thermal performance and reduce attic heat gain during Pacific Northwest heat events
  • Solar-compatible substrate and attachment details simplify mounting of modern photovoltaic arrays on Maple Falls roofs
  • Low-maintenance coated aluminum minimizes moss, lichen, and moisture-related degradation on damp, shaded Maple Falls roofs
  • Precision fabrication and mechanical fastening provide proven uplift resistance and long-term dimensional stability on steep and low-slope pitches
  • Durable finish and fully recyclable aluminum support long-term value and sustainability for Whatcom County homeowners
  • Backed by a transferable lifetime-limited warranty to protect Maple Falls property owners and future resale value

Metal roofing built for Maple Falls'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

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 Maple Falls, 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 Maple Falls, Washington:

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

2 completed Interlock® metal roofs in Maple Falls, WA

Interlock® has completed 2 metal roofs in Maple Falls, Washington between 2017–2018, across 2 roof profiles (Cedar Shingle, Slate). Every marker is a real, anonymized installation completed by an Interlock Installer — explore them on the interactive map and photo grid below, filterable by profile, colour and year of completion.

  • 2completed roofs
  • 2roof profiles
  • 2017–2018years

4.7 / 5 — from 734 verified customer reviews in Washington

What our customers are saying:

★★★★★
Review: January 11, 2019Completion: January 11, 2019
★★★★★
Review: November 14, 2018Completion: November 7, 2018

Read all Washington metal roofing reviews →

Nearby service areas in Whatcom County

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

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

Beyond Maple Falls, our team installs Interlock® metal roofing across:

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