Metal Roofing in Mardon, Washington — Lifetime Interlock® Aluminum Shingles Installed Locally
Mardon 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 Mardon'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 Mardon, Washington. Since 1997, we have helped homeowners protect their properties with heavy-gauge, fire-resistant, and energy-efficient roofs engineered for the unique weather challenges of the Pacific Northwest. Our cool roof solutions are designed to shed snow efficiently during Mardon’s harsh winters, resist moss and algae in the damp climate, and withstand high winds and wildfire risks common to the region. Choose from the timeless beauty of slate, cedar shingles, shake, Mediterranean tile, or standing seam profiles—all with the unmatched strength and durability of metal. Every Interlock roof is protected by the advanced Alunar® Coating System and backed by a Lifetime Warranty, ensuring your Mardon home stays safe, beautiful, and energy-efficient for decades to come. For roof replacement or re-roofing, trust Interlock Metal Roofing (PNW) Inc. for performance, beauty, and peace of mind.
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 ~77 freeze–thaw days a year
Corrosion Resistant
Aluminum does not develop iron rust
- Interlock® Lifetime Aluminum Roofing System available to Mardon homeowners in Grant County for long-term roof performance
- Aluminum panels coated with the Alunar® Coating System (no visible aluminum surface) for durable color retention and corrosion resistance
- 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) wind performance for uplifts and gusts that affect open plains around Mardon
- Mechanical standing-seam fastening minimizes exposed fasteners to improve wind-uplift and fatigue resistance on Mardon roofs
- Engineered panel geometry promotes snow-shedding to reduce buildup and lower ice-dam risk during inland freeze–thaw cycles
- Class A fire-rated available to address seasonal wildfire and ember-risk concerns in Grant County and surrounding rural areas
- UL 2218 Class 4 impact resistance for protection against hail, windblown debris, and falling branches common during regional storms
- Cool-roof properties reduce roof-surface temperatures during central Washington heat waves, decreasing attic heat gain and cooling load
- Solar-compatible design integrates with bracket-mounted photovoltaic systems without compromising seam weatherproofing
- Low-maintenance finish resists biological growth; panels limit moss accumulation on Mardon roofs exposed to irrigated landscapes
- Designed to withstand mineral-rich irrigation spray and reservoir-edge exposures found in parts of Grant County without accelerated corrosion
- Precision-engineered flashings and perimeter details reduce leak risk at valleys, skylights, and penetrations typical on local home designs
- Fully recyclable aluminum construction supports durable, lower-lifecycle environmental impact for sustainability-minded Mardon homeowners
- Backed by a Lifetime-Limited transferable warranty to protect long-term investment and resale value in the Mardon housing market
Metal roofing built for Mardon's climate
Averages (10-yr): ~203 mm rain and 33 cm snow per year, ~3513 sunshine hours, mean 12.3°C, typical daily-max winds ~18 km/h with gusts to 81 km/h, and ~77 freeze–thaw days per year.
- 33 cmavg. snow / year
- 203 mmavg. rain / year
- 77freeze–thaw days / year
- 81 km/hpeak wind gusts
- 3513 hrsannual sunshine
- 12.3°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 Mardon, Washington
Interlock® Aluminum Roofing — all-climates performance specs for Mardon, 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 Mardon, 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 Mardon, WA
Every marker is a real, anonymized Interlock® aluminum roof completed by an Interlock Installer. Explore verified Interlock® installations near Mardon, 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 Mardon on the interactive project map →Browse all Interlock® projects in Washington →See more Interlock® projects →
What our customers are saying:
Interlock has a great aluminum roof, great ice & water shield, amazing caulk but what should also be added too there system is a 3D Mesh Layered in the middle of the ice & water shield & aluminum roof shingles, to achieve a better air gap, to have better air circulation. Amazing team , amazing results.
Communicating delay reasons so customer is not left wondering what is going on
Nearby service areas in Grant County
Interlock® metal roofing is also installed in these communities near Mardon:
Interlock Metal Roofing (PNW) Inc. also services nearby States
Beyond Mardon, our team installs Interlock® metal roofing across:
