Metal Roofing in Dallesport, Washington — Lifetime Interlock® Aluminum Shingles Installed Locally
Dallesport 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 Dallesport'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 Dallesport, Washington. Since 1997, we have provided homeowners with premium roof replacement and re-roofing services designed specifically for the unique weather conditions of the Columbia River Gorge. Our heavy-gauge, fire-resistant, and energy-efficient cool roofs are engineered to withstand Dallesport’s high winds, heavy snowfall, and intense summer sun, ensuring year-round protection and energy savings. The Interlock Lifetime Roofing System is ideal for the Pacific Northwest, offering superior snow-shedding capabilities and long-term durability against rain and moisture. Choose from a range of beautiful styles—slate, cedar shingles, shake, Mediterranean tile, or standing seam—each protected by the advanced Alunar® Coating System and backed by a Lifetime Warranty. Trust Interlock Metal Roofing (PNW) Inc. for a roof that delivers unmatched performance, beauty, and peace of mind for your Dallesport home.
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
Freeze–Thaw Durable
Endures ~48 freeze–thaw days a year
Corrosion Resistant
Aluminum does not develop iron rust
- Tested to 120+ mph (193+ km/h) to withstand Columbia Gorge windstorms that commonly impact Dallesport and surrounding Klickitat County.
- Precision weatherproof seams (profiles: slate, cedar, shake, tile) and mechanical fastening (profile: standing seam) deliver long-term leak protection during wind-driven rain events.
- Aluminum is coated with the Alunar® Coating System (no visible aluminum surface) to resist corrosion and preserve finish through seasonal extremes.
- Advanced waterproof underlayment and seal detailing provide durable protection during Pacific Northwest atmospheric rivers that can flood low-lying Dallesport properties.
- Panels shed snow quickly and reduce ice-dam risk, addressing Dallesport’s occasional snow loads and repeated freeze–thaw cycles.
- Designed to limit biological growth—helping control moss and lichen common on damp roofs in the Dallesport area and simplifying maintenance.
- Class A fire-rated available, plus ember-resistant detailing to help mitigate wildfire exposure and ember risk in wildfire-prone Klickitat County.
- UL 2218 Class 4 impact resistance for protection against hail, falling branches, and storm debris common in regional wind events.
- Cool-roof reflectivity options improve attic comfort and reduce cooling loads during hot, dry summer heat waves east of the Cascades.
- Compatible with modern bracket-mounted photovoltaic systems for streamlined rooftop solar installations in Dallesport homes.
- Corrosion-resistant finish performs well inland where marine salt air is limited—but still resists occasional river spray and airborne particulates.
- Long service life and low-maintenance panels deliver measurable lifecycle savings versus asphalt shingles in the Gorge’s variable climate.
- Recyclable aluminum construction supports sustainable building practices while providing durable, lightweight roof assemblies.
- Backed by a Lifetime-Limited transferable warranty to protect resale value and provide long-term assurance for Dallesport homeowners.
Metal roofing built for Dallesport's climate
Averages (10-yr): ~449 mm rain and 56 cm snow per year, ~3430 sunshine hours, mean 12.4°C, typical daily-max winds ~16 km/h with gusts to 84 km/h, and ~48 freeze–thaw days per year.
- 56 cmavg. snow / year
- 449 mmavg. rain / year
- 48freeze–thaw days / year
- 84 km/hpeak wind gusts
- 3430 hrsannual sunshine
- 12.4°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.
- 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 Dallesport, Washington
Interlock® Aluminum Roofing — all-climates performance specs for Dallesport, 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 Dallesport, 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 Dallesport, WA
Every marker is a real, anonymized Interlock® aluminum roof completed by an Interlock Installer. Explore verified Interlock® installations near Dallesport, 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 Dallesport on the interactive project map →Browse all Interlock® projects in Washington →See more Interlock® projects →
What our customers are saying:
Looks beautiful and can’t wait to see how it fairs in the summer heat and large snowfalls. Communication of start date.
Work on the price, and I think you will get yourself a lot of business. A lot of the labor varies whether you take off the roof or not and includes the cost of removing the roof, and in my case, they would not be taking away anything, so I am still trying to figure out why it would be a two-day job when it's not that big of a roof.
They could have improved their scheduling.
I can't believe how much the roof changed the entire view of the house. There could have been more consistent clean-up during the installation. We have no regrets.
Nearby service areas in Klickitat County
Interlock® metal roofing is also installed in these communities near Dallesport:
Interlock Metal Roofing (PNW) Inc. also services nearby States
Beyond Dallesport, our team installs Interlock® metal roofing across:
