Metal Roofing in Chehalis, Washington — Lifetime Interlock® Aluminum Shingles Installed Locally
Chehalis 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 Chehalis's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection
Interlock Metal Roofing (PNW) Inc. is Chehalis, 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 Chehalis’s wet winters, frequent rain, and occasional snow, providing superior snow-shedding and long-term protection against moss, leaks, and wind. Choose from timeless styles like slate, cedar shingles, shake, Mediterranean tile, or standing seam—all with the strength of metal and the advanced Alunar® Coating System for maximum energy efficiency and color retention. Every Interlock roof is backed by a Lifetime Warranty, making us the top choice for roof replacement and re-roofing in Chehalis, WA. Experience peace of mind and lasting curb appeal with Interlock Metal Roofing—your local experts in premium, weather-ready roofing solutions.
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 ~1348 mm of rain a year
Freeze–Thaw Durable
Endures ~45 freeze–thaw days a year
- Available through authorized Interlock® installers serving Chehalis and Lewis County for local support and code familiarity
- Designed for Chehalis’ wet, temperate climate to withstand prolonged rainy seasons and frequent windstorms
- Built to resist damage from atmospheric rivers that deliver intense, sustained rainfall to Chehalis and surrounding Lewis County
- Resists corrosion from occasional salt-laden onshore winds that can reach inland Lewis County during strong Pacific storm events
- Keeps roof surfaces cleaner in Chehalis’ damp winters by limiting moss and lichen adherence on finished panels
- 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 defend Chehalis homes against severe wind gusts
- Advanced waterproof installation details provide durable leak protection through Chehalis’ heavy-rain and high-wind periods
- Snow-shedding metal panels reduce accumulation and help prevent ice-dam damage during occasional freeze–thaw cycles and light snow loads
- Class A fire-rated available for added peace of mind during regional dry spells and ember-risk conditions
- UL 2218 Class 4 impact resistance protects roofs from hail, falling branches, and storm debris common in area wind events
- The aluminum is coated with the Alunar® Coating System (no visible aluminum surface) for enhanced corrosion and finish longevity
- Energy-efficient cool-roof performance lowers heat gain during summer warm spells and improves attic comfort in Lewis County homes
- Solar-compatible design accommodates modern bracket-mounted photovoltaic systems with minimal roof modification
- Fully recyclable, low-maintenance aluminum roofing engineered to outlast asphalt shingles in Chehalis’ high-moisture environment and backed by a lifetime-limited transferable warranty
Metal roofing built for Chehalis's climate
Averages (10-yr): ~1348 mm rain and 42 cm snow per year, ~2811 sunshine hours, mean 10.2°C, typical daily-max winds ~14 km/h with gusts to 102 km/h, and ~45 freeze–thaw days per year.
- 42 cmavg. snow / year
- 1348 mmavg. rain / year
- 45freeze–thaw days / year
- 102 km/hpeak wind gusts
- 2811 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 Chehalis, Washington
Interlock® Aluminum Roofing — all-climates performance specs for Chehalis, 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 Chehalis, Washington:
Explore all Interlock® metal roofing systems, or see the Guardian lifetime warranty and independent testing reports.
Recent Interlock® roofs across Washington
3 completed Interlock® metal roofs in Chehalis, WA
Interlock® has completed 3 metal roofs in Chehalis, Washington between 1999–2010, across 2 roof profiles (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.
- 3completed roofs
- 2roof profiles
- 1999–2010years
Open Chehalis on the interactive project map →Browse all Interlock® projects in Washington →See more Interlock® projects →
What our customers are saying:
So happy with the descision to put an interlock roof on and a tremendous thank you to all the staff and site employeesVery professional and courteous.
Wish we had the means to install Interlocking rooinf.
Nearby service areas in Lewis County
Interlock® metal roofing is also installed in these communities near Chehalis:
Interlock Metal Roofing (PNW) Inc. also services nearby States
Beyond Chehalis, our team installs Interlock® metal roofing across:
