Metal Roofing in Maltby, Washington — Lifetime Interlock® Aluminum Shingles Installed Locally
Maltby 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 Maltby's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection
Interlock Metal Roofing (PNW) Inc. is Maltby, 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 Pacific Northwest’s unique climate. Our heavy-gauge, fire-resistant roofs are engineered to withstand Maltby’s wet winters, heavy snowfall, and moss-prone conditions, ensuring superior snow shedding and long-term protection. With energy-efficient cool roof technology, our systems help reduce energy costs and keep your home comfortable year-round. Choose from slate, cedar shingles, shake, Mediterranean tile, or standing seam profiles—all protected by the advanced Alunar® Coating System and backed by a Lifetime Warranty. For roof replacement or re-roofing in Maltby, trust Interlock Metal Roofing (PNW) Inc. for a roof that’s as beautiful as it is resilient.
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 ~1372 mm of rain a year
Freeze–Thaw Durable
Endures ~58 freeze–thaw days a year
- Aluminum panels coated with the Alunar® Coating System (no visible aluminum surface) for durable color retention and multi-layer corrosion protection
- 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 withstand severe windstorms and gusts that can affect Snohomish County properties
- Interlocking panels with concealed fasteners create continuous load paths to improve structural performance under live and snow loads
- Snow-shedding panel geometry reduces buildup and helps prevent ice dams during Maltby’s freeze–thaw cycles and occasional heavy snow events
- Designed to tolerate rapid wet–dry and freeze–thaw transitions, minimizing thermal movement and seam fatigue in the Pacific Northwest climate
- Corrosion-resistant aluminum construction resists marine-influenced moisture and occasional salt spray that can reach Snohomish County and nearby lowland areas
- Built to maintain watertight integrity during prolonged atmospheric river events and extended high-intensity rainfall common to Maltby and western Snohomish County
- Moss-resistant smooth coated surface and steep-shedding profiles limit biological growth on shaded, damp roofs found on many Maltby lots
- UL 2218 Class 4 impact resistance reduces damage risk from hail, falling branches, and storm debris
- Class A fire-rated available to enhance ember resistance and provide additional protection during dry-season wildfire risk periods
- Energy-efficient cool-roof characteristics reduce summer heat gain, lowering attic temperatures and improving HVAC performance for Maltby homes
- Solar-compatible panel geometry supports modern bracket-mounted photovoltaic systems without compromising weatherproofing
- Fully recyclable aluminum construction and long service life help meet sustainability goals for environmentally conscious Snohomish County homeowners
- Lifetime-Limited transferable warranty and low-maintenance finish help protect long-term value and reduce replacement frequency in Maltby’s wet climate
Metal roofing built for Maltby's climate
Averages (10-yr): ~1372 mm rain and 52 cm snow per year, ~2907 sunshine hours, mean 10.2°C, typical daily-max winds ~14 km/h with gusts to 96 km/h, and ~58 freeze–thaw days per year.
- 52 cmavg. snow / year
- 1372 mmavg. rain / year
- 58freeze–thaw days / year
- 96 km/hpeak wind gusts
- 2907 hrsannual sunshine
- 10.2°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.
- 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 sales@washingtonmetalroofing.com
- Toll-Free 1-866-733-5811
- Customer Service pnwservice@interlockroofing.com
- 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 Maltby, Washington
Interlock® Aluminum Roofing — all-climates performance specs for Maltby, 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 Maltby, 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 Maltby, WA
Every marker is a real, anonymized Interlock® aluminum roof completed by an Interlock Installer. Explore verified Interlock® installations near Maltby, 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 Maltby on the interactive project map →Browse all Interlock® projects in Washington →See more Interlock® projects →
What our customers are saying:
did great
I believe that aluminum is probably the superior metal product, but the cost difference between it and steel made it easy to eliminate from our decision.
It went well.
The only step that was missing was notification of actual start date. Otherwise, the rest of the process was fine.
I am very impressed with the quality of your metal roof and would have loved to have gone with it. Now I know that I should quadruple the amount of money I need to save up if I expect to have a metal roof. I realize your roof is superior to the standard shingles and was impressed with how they lock together to give a tight seal.
Nearby service areas in Snohomish County
Interlock® metal roofing is also installed in these communities near Maltby:
Interlock Metal Roofing (PNW) Inc. also services nearby States
Beyond Maltby, our team installs Interlock® metal roofing across:
