Metal Roofing in Frankfort, Washington — Lifetime Interlock® Aluminum Shingles Installed Locally
Frankfort Metal Roofing Experts Installing Lifetime Interlock® Aluminum Shingles Since 1997
Metal Roofing Built for Frankfort's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection
Interlock Metal Roofing (PNW) Inc. is Frankfort, 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 to the unique Pacific Northwest climate. Our heavy-gauge, fire-resistant roofs are engineered to withstand Frankfort’s wet winters, heavy snowfall, and seasonal storms, providing superior snow shedding and long-term protection. With energy-efficient cool roof technology, our systems help reduce energy costs year-round. Choose from the timeless elegance of slate, cedar shingles, shake, Mediterranean tile, or standing seam — all with the strength of metal and the advanced Alunar® Coating System for maximum weather resistance. Every Interlock roof is backed by a Lifetime Warranty, making us the top choice for roof replacement and re-roofing in Frankfort, Washington.

Performance you can measure (all climates)
Weather Resistant
Tested to 193+ km/h (120 mph) winds
Durable
Lifetime-Limited, transferable warranty
Rain & Moisture Proof
Repels ~2211 mm of rain a year
Energy Efficient
Reflective cool-roof lowers cooling costs
Corrosion Resistant
Aluminum won’t rust or corrode
- Authorized Interlock® Lifetime Aluminum Roofing Systems installer serving Frankfort and Pacific County homeowners
- 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 120+ mph (193+ km/h) for severe coastal windstorms and Pacific gusts that impact Frankfort properties
- Aluminum is coated with the Alunar® Coating System (no visible aluminum surface) to resist surface degradation from marine exposure
- Corrosion-resistant design specifically formulated for Frankfort’s salt air and marine environment along the coast
- Optimized waterproofing details and integrated flashings provide measurable protection through Pacific County’s heavy rainfall and wind-driven storms
- Snow-shedding metal panels reduce buildup and mitigate ice-dam risk during occasional winter snow loads and freeze–thaw cycles in the region
- Class A fire-rated available for added resilience during regional ember-risk or dry-season events
- UL 2218 Class 4 impact resistance for protection against hail, falling branches, and storm-borne debris common after windstorms
- Energy-efficient cool-roof characteristics lower rooftop temperatures and reduce heat gain during summer heat waves in Frankfort homes
- Solar-compatible roof plane engineered to accept modern bracket-mounted photovoltaic systems without compromising weatherproofing
- Fully recyclable aluminum construction supports longevity and sustainability goals for Pacific County homeowners
- Low-maintenance finish and panel system designed to outlast asphalt shingles in Frankfort’s high-moisture coastal climate
- Backed by a Lifetime-Limited transferable warranty to protect long-term performance and resale value in Frankfort real estate markets
Metal roofing built for Frankfort's climate
Averages (10-yr): ~2211 mm rain and 52 cm snow per year, ~2892 sunshine hours, mean 11°C, typical daily-max winds ~19 km/h with gusts to 122 km/h, and ~11 freeze–thaw days per year.
- 52 cmavg. snow / year
- 2211 mmavg. rain / year
- 11freeze–thaw days / year
- 122 km/hpeak wind gusts
- 2892 hrsannual sunshine
- 11°Cmean temperature
Interlock® aluminum roofing is engineered for these conditions — wind-rated to 193+ km/h (120 mph), UL 2218 Class 4 impact-rated, Class A fire-rated, and built to shed snow and resist ice dams and freeze–thaw cracking, backed by a lifetime limited warranty.
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 [email protected]
- Toll-Free 1-866-733-5811
- Customer Service [email protected]
- 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 Frankfort, Washington
Interlock® Aluminum Roofing — all-climates performance specs for Frankfort, 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 Frankfort, 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 Frankfort, WA
Every marker is a real, anonymized Interlock® aluminum roof completed by a Certified Interlock Installer. Explore verified Interlock® installations near Frankfort, 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 Frankfort on the interactive project map →Browse all Interlock® projects in Washington →See more Interlock® projects →
What our customers are saying:
Communication between Angela and Igor could have better I think. Great product! Great install crew!
It's beautiful! It's a beautiful job, very well done! They could have improved in no areas. It's a beautiful job!
Some scrap materials left on the deck and a few nails too. I'm glad I found the nails before my tires did. Roof has received many compliments:
Interlock Roofing could've improved upon their clean up.
He was late. Brought his child and dog. We entertained both while he tried to high pressure sell us. Not professional at all.
Nearby service areas in Pacific County
Interlock® metal roofing is also installed in these communities near Frankfort:
Interlock Metal Roofing (PNW) Inc. also services nearby States
Beyond Frankfort, our team installs Interlock® metal roofing across:
Metal Roofing FAQs for Homeowners in Frankfort
The following metal roofing FAQs are designed specifically for homeowners in Frankfort, Washington. Whether you are building a new home or replacing an existing roof, understanding how roofing materials perform in local weather conditions is essential. From wind and storm protection to fire resistance, hail impact, snow loads, and coastal moisture exposure, Interlock’s Lifetime Aluminum Roofing System is engineered to provide long-term durability, energy efficiency, and peace of mind in Frankfort.
Does metal roofing handle heavy snow and ice in Frankfort winters?
Yes—metal roofing sheds snow and ice far more reliably than asphalt. Frankfort averages about 52 cm of snow annually with roughly 11 freeze-thaw cycles per year, the exact conditions that cause ice dams on traditional roofs. Interlock's four-way interlocking panels and smooth metal surface prevent ice from bonding and backing up under shingles. The panels are rated for 120 mph wind gusts, which means they stay secure even when snow slides. You can add snow guards if you want controlled release, but the roof itself handles the load without the water damage problems that plague asphalt in freeze-thaw climates.
Will a metal roof leak in Frankfort's heavy rain?
No. With about 2211 mm of annual rainfall, Frankfort demands a roofing system that sheds water instantly and stays sealed. Interlock's four-way interlocking aluminum panels overlap and nest together so tightly that water runs off—it doesn't pool or seep into seams. The panels are installed to ESR-1790 (the current ICC code standard), which certifies water shedding performance. Combined with a solid deck and underlayment, this design outperforms asphalt in heavy rain because water never sits on the surface; it drains immediately. The Guardian Warranty covers leak penetration for life, so if water ever enters through the roof itself, it's covered.
Why won't an aluminum roof rust like steel roofing in a wet climate?
Aluminum cannot rust because it contains no iron—rust requires iron oxide to form. Instead, aluminum develops a thin, invisible oxide layer the moment it's exposed to air, and this layer self-heals when scratched or damaged. In Frankfort's wet climate, where 2211 mm of rain and salt-air spray (if near the coast) would destroy steel within years, aluminum remains structurally sound indefinitely. Interlock uses roofing-grade 3105-H24 aluminum with a Alunar 70% PVDF fluorocarbon coating on both sides, warranted 30 years against chalking and fading. This two-layer defense means your roof won't degrade, stain, or weaken from moisture exposure—a real advantage in Pacific County's consistently wet conditions.
Can an aluminum roof stand up to hail, and will my insurer care?
Yes on both counts. Interlock achieves UL 2218 Class 4 impact rating—the highest available—and carries warranty coverage for hail perforation up to 1.5 inches. This rating matters in Frankfort because severe hail, though not common in the annual climate normals, does occur in Pacific County, and Class 4 is what insurers recognize. Many homeowners see premium reductions because Class 4 metal roofing proves its durability in testing that mimics the worst hail events. The aluminum's light weight (roughly 0.41–0.59 lb/sq ft depending on profile) means hail impact stress is distributed across fewer pounds of material than heavy asphalt or tile, yet the metal doesn't dent or perforate under rated conditions. Contact your insurer to confirm eligibility for discounts.
Can a metal roof stay on in Frankfort's wind gusts?
Yes. Frankfort experiences typical daily winds around 19 km/h with gusts reaching 122 km/h—well within what Interlock's four-way interlocking aluminum panels handle. The warranty guarantees wind resistance up to 120 mph (193 km/h), and the interlocking design means each panel is mechanically tied to its neighbors in four directions. Unlike asphalt shingles, which can lift and fail in fastener pull-through, Interlock panels nest together so wind pressure actually drives them tighter. The system is code-certified under ESR-1790 for these conditions, and it's been installed in coastal British Columbia for 27 years where salt-air wind gusts are brutal. Your roof won't flutter, lift, or require constant fastener replacement.
Do I need to reinforce my roof framing for a metal roof?
No structural reinforcement needed. Interlock's aluminum panels weigh far less than traditional materials—the Mediterranean Tile profile installs at roughly 0.59 lb/sq ft, about 96% lighter than concrete or clay tile. This means you avoid the $3,000–$8,000 structural upgrades that tile typically requires. Even older Frankfort homes with modest framing handle the weight easily. In fact, Interlock can be installed directly over most existing asphalt roofs, which saves tear-off costs and disruption. The light weight also reduces stress on your foundation during the 11 annual freeze-thaw cycles common in Pacific County, where repeated expansion and contraction can stress heavier materials. You get the look of premium materials without the structural liability.
Will a metal roof reduce my cooling costs in summer?
In Frankfort's climate, energy savings come from heat reflection, not cooling load—summers are mild with only about 2892 annual sunshine hours. But the principle matters: Interlock's energy-efficient colors achieve initial solar reflectance up to 0.55 and thermal emissivity of 0.84, rated by the Cool Roof Rating Council. This means your roof reflects heat that asphalt absorbs, keeping your attic cooler even in mild summers and reducing the load on any cooling system you run. Over 52 weeks of typically 11°C temperatures and frequent cloud cover, the practical benefit is longer roof life (less thermal stress during the 11 freeze-thaw cycles per year) and lower overall utility cost. The reflective coating is warranted 30 years against fading, so the energy benefit doesn't degrade.
How much maintenance does a metal roof actually need?
Essentially none—no more than asphalt. Interlock aluminum panels don't require routine cleaning, coating reapplication, or fastener replacement like asphalt shingles do. CALGreen has verified the system for reduced maintenance. In Frankfort's 2211 mm annual rainfall, leaves and debris wash off naturally; the smooth metal surface doesn't trap moss or algae the way asphalt does. You won't need to replace shingles after 15–20 years or deal with curling, splitting, or granule loss. Gutters and downspouts still need occasional clearing, but the roof itself is passive. The Guardian Warranty covers material defects for life (non-prorated for the original owner), so you're not buying future repair costs—you're buying a roof that stays intact. That's the opposite of asphalt, which requires regular attention.
Is an aluminum metal roof better for the environment than asphalt?
Yes. Interlock aluminum panels are roughly 95% recyclable at end-of-life, whereas asphalt shingles end up in landfills by the millions annually. Over 27+ years of manufacturing and installation, Interlock has diverted tons of material from waste streams. More important for Frankfort: when you eventually replace an asphalt roof, you'll pay for tear-off and haul-away costs, plus the environmental cost of landfill volume. With Interlock, your roof lasts multiple decades—the lifetime limited warranty transfers 50 years to the next owner—so you stop the asphalt replacement cycle entirely. The aluminum never degrades in Frankfort's 2211 mm annual rainfall or 52 cm of snow; it doesn't rot, split, or curl. One roof, installed once, lasts generations. That's genuine environmental responsibility.
Is a metal roof worth the cost over the life of my home?
Yes—it's the last roof you buy. Asphalt costs less upfront but needs replacement every 15–20 years in Frankfort's wet climate where freeze-thaw cycles (about 11 per year) and 2211 mm rainfall accelerate deterioration. Interlock costs more initially but carries a lifetime limited, non-prorated warranty for the original owner and a 50-year transferable term for the next owner. Do the math: two asphalt roofs (tear-off, labor, disposal) plus potential water damage over 40 years vs. one metal roof, zero maintenance, zero leak liability. Current promotion: no payments and no interest until Spring 2027, or 10% off installation—eliminates the financing objection. A roof that lasts your lifetime and your heir's first two decades, with zero maintenance and zero risk of ice-dam leaks in your freeze-thaw climate, stops being a cost and becomes an asset.
Is a metal roof a good choice for Frankfort’s climate?
Yes. Frankfort averages about 52 cm of snow, 2211 mm of rain, roughly 11 freeze–thaw days a year, with peak wind gusts near 122 km/h. Interlock® aluminum roofing is wind-rated to 193+ km/h (120 mph), UL 2218 Class 4 impact-rated and Class A fire-rated, and its four-way interlocking panels shed snow and resist ice dams and freeze–thaw cracking — all backed by a lifetime limited, transferable warranty.













