Metal Roofing in Blaine, Washington — Lifetime Interlock® Aluminum Shingles Installed Locally
Blaine 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 Blaine's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection
Interlock Metal Roofing (PNW) Inc. is Blaine, Washington’s trusted local metal roofing contractor, proudly serving 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, and energy-efficient cool roofs are engineered to withstand Blaine’s coastal rains, heavy winds, and winter snow loads, ensuring superior snow shedding and long-term protection. Whether you prefer the classic elegance of slate, cedar shingles, shake, Mediterranean tile, or the modern appeal of standing seam, our roofs combine timeless style with the proven strength of metal. 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 Blaine, 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 ~1196 mm of rain a year
Corrosion Resistant
Aluminum does not develop iron rust
- Aluminum substrate coated with the Alunar® Coating System (no visible aluminum surface) for durable finish and enhanced corrosion resistance in Blaine’s coastal environment
- 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 resist 193+ km/h (120+ mph) wind loads to help protect Blaine roofs from severe coastal gusts and storm winds
- High-performance perimeter and penetration detailing reduces flashing failures common to marine-exposed installations in Whatcom County
- Snow-shedding metal panels reduce buildup and help prevent ice dams during freeze–thaw cycles and the light–moderate snow loads that affect nearby uplands
- Designed for prolonged atmospheric river events—sealed terminations and continuous interlocks limit water intrusion during extended heavy-precipitation periods experienced on the Blaine coast
- Corrosion-resistant finish and alloy selection combat salt-air degradation and salt-spray exposure typical of shoreline properties
- Panel geometry and low-surface-tension finish minimize moisture retention and inhibit moss/lichen growth common in Blaine’s damp, shaded microclimates
- Class A fire-rated available for added protection when ember and burning‑brand risk rises in dry-season ridge and rural areas of Whatcom County
- UL 2218 Class 4 impact resistance for protection against hail, falling branches, and storm debris during severe weather
- Energy-efficient cool-roof performance reduces summer heat gain and improves attic comfort during regional warm spells
- Solar-compatible design engineered for bracket-mounted photovoltaic systems on Blaine roofs without compromising weatherproof seam integrity
- Fully recyclable aluminum supports sustainable building practices valued by homeowners across Whatcom County
- Engineered attachment details resist wind uplift and cyclic loading to reduce fastener fatigue on exposed coastal roofs
- Architectural profiles replicate slate, cedar shake, and tile aesthetics while offering the performance of a metal roof; standing seam option provides mechanical fastening for severe conditions
- Low-maintenance system backed by a Lifetime‑Limited transferable warranty to preserve long-term protection and resale confidence for Blaine homeowners
Metal roofing built for Blaine's climate
Averages (10-yr): ~1196 mm rain and 35 cm snow per year, ~3005 sunshine hours, mean 10.3°C, typical daily-max winds ~20 km/h with gusts to 117 km/h, and ~34 freeze–thaw days per year.
- 35 cmavg. snow / year
- 1196 mmavg. rain / year
- 34freeze–thaw days / year
- 117 km/hpeak wind gusts
- 3005 hrsannual sunshine
- 10.3°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 Blaine, Washington
Interlock® Aluminum Roofing — all-climates performance specs for Blaine, 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 Blaine, Washington:
Explore all Interlock® metal roofing systems, or see the Guardian lifetime warranty and independent testing reports.
Recent Interlock® roofs across Washington
6 completed Interlock® metal roofs in Blaine, WA
Interlock® has completed 6 metal roofs in Blaine, Washington between 2011–2024, across 3 roof profiles (Slate, Standing Seam, IB Membrane). 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.
- 6completed roofs
- 3roof profiles
- 2011–2024years
Open Blaine on the interactive project map →Browse all Interlock® projects in Washington →See more Interlock® projects →
What our customers are saying:
They did great. Overall, I'm very happy with the experience. They were fast and professional. They knocked it out of the park.
We didn't know exactly what they were doing. It would have been nice to be told each process. I put in a service call yesterday.
This is a special case project on which the first crew sent by Interlock was deficient. The folks from the factory stepped in and corrected the problems in full. I am pretty satisfied after a very rocky start.
Nearby service areas in Whatcom County
Interlock® metal roofing is also installed in these communities near Blaine:
Interlock Metal Roofing (PNW) Inc. also services nearby States
Beyond Blaine, our team installs Interlock® metal roofing across:
