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THE INTERLOCK COLLECTION

Metal Roofing in Grafton Township, Minnesota — Lifetime Interlock® Aluminum Shingles Installed Locally

Grafton Township Metal Roofing Experts Installing Lifetime Interlock® Aluminum Shingles Since 2001

What do Interlock customers in Minnesota say?

Interlock has 242 published customer reviews from Minnesota, covering installations reviewed between 2006 and 2024. They average 4.6 out of 5, with 234 collected through independent GuildQuality surveys. Interlock® Slate is the most frequently installed system in the region, appearing in 116 of these projects. Across the surveys that scored individual categories, salesperson punctuality rates highest at 4.8 out of 5.

Metal Roofing Built for Grafton Township's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection

Interlock Metal Roofing is the trusted metal roofing contractor and exclusive authorized installer of Interlock® lifetime aluminum roofing systems serving homeowners in Grafton Township, Sibley County, Minnesota — founded May 17, 2001. As your local metal roofing contractor for roof replacement and re-roofing, we install heavy-gauge, fire‑resistant, energy‑efficient cool roofs engineered for performance, beauty, and durability; the Interlock Lifetime Roofing System — protected by the Alunar® Coating System and backed by a Lifetime Warranty — is the best roof choice for Grafton Township because its interlocking, snow‑shedding profiles reduce ice‑dam risk during harsh Minnesota winters and heavy snowfall, its durable aluminum and standing‑seam options resist high winds and hail common in seasonal storms, and its cool‑roof reflectivity improves year‑round energy performance and long‑term protection. Choose the timeless look of slate, cedar shingles, shake, Mediterranean tile, or standing seam with the strength and longevity of metal for dependable, long‑lasting roofing across Grafton Township, Minnesota.

Interlock metal roofing styles including slate, cedar, shake, tile, and standing seam in Grafton Township, Minnesota

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 ~79 freeze–thaw days a year

Impact Resistant

UL 2218 Class 4 — top hail rating

Rain & Moisture Proof

Repels ~744 mm of rain a year

  • Available through authorized Interlock® installers serving homeowners in Grafton Township and elsewhere in Sibley County
  • Coated with the Alunar® Coating System (no visible aluminum surface) for durable finish and extended 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
  • Engineered for Grafton Township’s inland continental climate, addressing heavy snow loads and prolonged cold-season exposure
  • Snow-shedding panel geometry reduces accumulated roof weight and accelerates melt-off to help prevent ice dams during Sibley County winters
  • Designed to tolerate repeated freeze–thaw cycles, minimizing thermal movement, seal stress, and water ingress on vulnerable eaves and penetrations
  • Tested to 193+ km/h (120+ mph) to resist severe wind events and blunt-force gusts common across open Minnesota terrain
  • UL 2218 Class 4 impact resistance for enhanced protection from hail, falling limbs, and seasonal storm debris
  • Corrosion-resistant aluminum finish resists degradation from road de-icing salts and moisture during thaw periods
  • Class A fire-rated available for added protection against ember exposure and dry-season ignition risks
  • Energy-efficient cool-roof characteristics reduce summer heat gain and improve attic temperature stability during heat waves
  • Engineered compatibility with modern bracket-mounted photovoltaic systems for straightforward solar installations
  • Low-maintenance aluminum construction reduces re-roof frequency versus asphalt in Grafton Township’s seasonal cycles
  • Fully recyclable materials and long service life support sustainable building practices for Sibley County homeowners
  • Backed by a Lifetime-Limited transferable warranty to protect long-term performance and property resale value

Metal roofing built for Grafton Township's climate

Averages (10-yr): ~744 mm rain and 91 cm snow per year, ~3215 sunshine hours, mean 8.2°C, typical daily-max winds ~23 km/h with gusts to 103 km/h, and ~79 freeze–thaw days per year.

  • 91 cmavg. snow / year
  • 744 mmavg. rain / year
  • 79freeze–thaw days / year
  • 103 km/hpeak wind gusts
  • 3215 hrsannual sunshine
  • 8.2°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 Industries (Midwest) Inc.

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
  • SaturdayClosed
  • SundayClosed

Interlock Metal Roofing Minnesota is a trusted metal roofing contractor proudly serving homeowners and businesses throughout the State of Minnesota. Backed by decades of manufacturing and installation expertise, Interlock has earned a reputation for exceptional craftsmanship, long-term reliability, and outstanding customer care. As a specialized installer of premium aluminum and standing seam metal roofing systems, Interlock Metal Roofing Minnesota provides exclusive lifetime roofing products engineered to perform in Minnesota’s demanding climate — from heavy snow loads and ice dams to hailstorms, high winds, subzero temperatures, and dramatic seasonal weather swings. Built on integrity, professionalism, and superior workmanship, Interlock Metal Roofing has completed thousands of successful roofing installations across North America, helping Minnesota property owners invest in roofing systems that are both beautiful and built to endure. Our team is known for transparent communication, efficient project execution, and meticulous installation standards, supported by industry-leading materials and comprehensive warranty protection. Interlock’s commitment to excellence is reflected in its dedication to safety, ongoing installer training, and strong customer satisfaction throughout the region. With highly trained crews and strict adherence to best practices, we deliver durable, energy-efficient roofing solutions that enhance curb appeal, increase property value, and provide decades of dependable protection against Minnesota’s harsh winters and severe storm conditions. Whether you need a residential metal roof replacement, a commercial roofing upgrade, or a custom architectural metal roofing system, Interlock Metal Roofing Minnesota is the trusted choice for premium lifetime metal roofing — combining proven expertise, exclusive products, and service you can count on.

Recognition GuildQuality Guildmaster Award — verified customer satisfaction (GuildQuality)

Accredited BBB Accredited A

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Interlock® Aluminum Roofing — all-climates performance specs for Grafton Township, Minnesota

Spec / RatingClimate / 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 4Hail and impact debris: highest impact classification; resists cracking, splitting, and surface loss common with asphalt under hail strikes.
Snow & ice performance: interlocking, shedding profileHeavy 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 systemHigh heat, intense sun, thermal cycling: coatings resist UV breakdown and temperature-swing fatigue, slowing fading and surface degradation.
Moss / algae resistance: smooth coated surfaceWet 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+ yearsLong-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 transferableLifetime protection + resale value: guarantees long-term material confidence and transfers to future owners.

Available Profiles in Grafton Township, Minnesota:

Explore all Interlock® metal roofing systems, or see the Guardian lifetime warranty and independent testing reports.

Completed Interlock® metal roofs near Grafton Township, MN

Every marker is a real, anonymized Interlock® aluminum roof completed by an Interlock Installer. Explore verified Interlock® installations near Grafton Township, Minnesota, 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.

4.6 / 5 — from 242 verified customer reviews in Minnesota

What our customers are saying:

★★★☆☆
Review: October 17, 2015Completion: October 17, 2015

We would certainly consider Interlock, if we had a better breakdown on the cost per square.

Read all Minnesota metal roofing reviews →

Nearby service areas in Sibley County

Interlock® metal roofing is also installed in these communities near Grafton Township:

Interlock Industries (Midwest) Inc. also services nearby States

Beyond Grafton Township, our team installs Interlock® metal roofing across:

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