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THE INTERLOCK COLLECTION

Metal Roofing in Harvard, Illinois — Lifetime Interlock® Aluminum Shingles Installed Locally

Harvard Metal Roofing Experts Installing Lifetime Interlock® Aluminum Shingles Since 2001

What do Interlock customers in Illinois say?

Interlock has 279 published customer reviews from Illinois, covering installations reviewed between 2004 and 2026. They average 4.8 out of 5, with 262 collected through independent GuildQuality surveys. Interlock® Slate is the most frequently installed system in the region, appearing in 112 of these projects. Across the surveys that scored individual categories, salesperson punctuality rates highest at 4.9 out of 5.

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

Interlock Metal Roofing is a trusted metal roofing contractor and exclusive authorized installer of the Interlock® Lifetime Aluminum Roofing System serving homeowners in Harvard, Illinois (McHenry County) since May 17, 2001. As your local metal roofing contractor in Harvard, IL, we deliver heavy‑gauge, fire‑resistant, energy‑efficient cool roof solutions—protected by the Alunar® Coating System and backed by a Lifetime Warranty—engineered for performance, beauty, and durability. Our roofs are designed for Harvard’s conditions, shedding heavy snow, minimizing ice‑dam and freeze‑thaw damage, and resisting Illinois wind and humidity while lowering energy costs. For roof replacement and re‑roofing throughout Harvard, choose timeless slate, cedar shingle, shake, Mediterranean tile, or standing seam aesthetics with the long‑term strength of aluminum via the Interlock Lifetime Roofing System.

Interlock metal roofing styles including slate, cedar, shake, tile, and standing seam in Harvard, Illinois

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 ~83 freeze–thaw days a year

Rain & Moisture Proof

Repels ~838 mm of rain a year

Impact Resistant

UL 2218 Class 4 — top hail rating

  • Authorized Interlock® installer serving Harvard and McHenry County homeowners
  • Designed for Harvard’s inland climate — seasonal heavy snow and freeze–thaw cycles
  • Precision weatherproof seams (profiles: slate, cedar, shake, tile) and mechanical fastening (profile: standing seam) deliver long-term leak protection during wind-driven rain events
  • The aluminum is Coated with the Alunar® Coating System (no visible aluminum surface)
  • Interlocking panel system tested to 193+ km/h (120+ mph) for severe wind events common to Midwest thunderstorms and straight‑line gusts
  • Panel geometry and attachment reduce roof deflection and help manage water runoff for typical suburban roof pitches
  • Class A fire-rated available for added protection and homeowner peace of mind
  • UL 2218 Class 4 impact resistance for hail, falling branches, and storm debris protection
  • Seasonal moss and algae resistance—coatings and profile design limit biological growth in shaded, humid pockets around Harvard properties
  • Energy-efficient cool‑roof performance reduces heat gain during Midwest summer heat waves and improves attic comfort
  • Solar-compatible system engineered for modern bracket-mounted photovoltaic installations on Harvard homes
  • Fully recyclable aluminum supports sustainability goals for McHenry County homeowners
  • Premium architectural profiles replicate slate, cedar shake, tile, and standing seam to preserve Harvard curb appeal
  • Low-maintenance roofing solution that reduces routine repairs compared with asphalt shingles
  • Backed by a Lifetime‑Limited transferable warranty to protect Harvard residences and maintain resale value

Metal roofing built for Harvard's climate

Averages (10-yr): ~838 mm rain and 84 cm snow per year, ~3084 sunshine hours, mean 9.4°C, typical daily-max winds ~19 km/h with gusts to 100 km/h, and ~83 freeze–thaw days per year.

  • 84 cmavg. snow / year
  • 838 mmavg. rain / year
  • 83freeze–thaw days / year
  • 100 km/hpeak wind gusts
  • 3084 hrsannual sunshine
  • 9.4°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 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 Chicago is a trusted metal roofing contractor proudly serving homeowners and businesses throughout the greater Chicago metropolitan area. 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 Chicago provides exclusive lifetime roofing products engineered to perform in Illinois’ demanding climate — from heavy snow and ice buildup to high winds, hail, summer heat, and dramatic seasonal weather shifts. Built on integrity, professionalism, and superior workmanship, Interlock Metal Roofing has completed thousands of successful roofing installations across North America, helping Chicago-area 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, continuous 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 Chicagoland’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 Chicago 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+

Part of the Interlock® installer network →

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Interlock® Aluminum Roofing — all-climates performance specs for Harvard, Illinois

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 Harvard, Illinois:

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

5 completed Interlock® metal roofs in Harvard, IL

Interlock® has completed 5 metal roofs in Harvard, Illinois between 2007–2017, across 3 roof profiles (Slate, Shingle, Shake). 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.

  • 5completed roofs
  • 3roof profiles
  • 2007–2017years

4.8 / 5 — from 279 verified customer reviews in Illinois

What our customers are saying:

★★★★★
Review: September 11, 2017Completion: August 28, 2017

Interlock Roofing could not have done anything to improve, they did a fanatic job. It was a very positive experience. The installers did a great job. John called to let us know when he would come and he showed up when he said he would.

Read all Illinois metal roofing reviews →

Nearby service areas in McHenry County

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

Interlock Industries (Midwest) Inc. also services nearby States

Beyond Harvard, our team installs Interlock® metal roofing across:

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