Commercial and Flat Roof Replacement Experts

Our team specializes in proven systems installed with precision and care.

A commercial low slope roof replacement with black shingles.

Commercial Steep‑Slope Roofing

Reliable Protection for Churches, Schools, Multi‑Family Buildings & Businesses

Steep‑slope commercial roofs demand a different level of craftsmanship. They’re highly visible, exposed to Wisconsin’s toughest weather, and often protect buildings where safety, continuity, and public trust matter. Expert Exteriors delivers steep‑slope roofing systems built for long‑term performance, clean aesthetics, and code‑compliant installation. Trust your commercial and flat roof replacement with the experts. 

 

Why Businesses Choose Us

  • Specialized steep‑slope expertise: Our crews are trained specifically for commercial pitches, complex rooflines, and multi‑material systems.

  • Premium manufacturer‑certified installations: We install shingles, metal, and composite systems to exact manufacturer specs for full warranty protection.

  • Minimal disruption to operations: We coordinate around business hours, school schedules, and tenant needs to keep your property running smoothly.

  • Safety‑first jobsite management: OSHA‑compliant practices, daily cleanup, and clear communication on every project.

  • Insurance and documentation support: Detailed inspections, photo reports, and assistance navigating commercial claims.

Duro-Tuff PVC Roofing Systems

The Duro-Tuff PVC membrane features a highly durable proprietary thermoplastic formulation as an affordable roll good for a secure and watertight installation. Our proprietary thermoplastic formulation provides exceptional flexibility, reflectivity and resistance to UV radiation, fire and a broad range of chemicals. The installed membrane is smooth on the surface for an aesthetically pleasing look.

A complete line of custom-fabricated accessories is available to address the critical transition areas of a roof, providing superior waterproofing, long-term leak protection and flawless aesthetics.

 

Industry leading performance —
Edge‑to‑Edge and Deck‑to‑Sky™

Duro-Last is a full system roofing provider — from the roof deck to insulation and membrane to custom-fabricated accessories, edge metal, drains, flashings, fasteners and adhesives — we have your roofing needs covered.

 

Membrane Features

  • Cost-effective, reliable PVC roll good available in a wide range of vibrant colors.
  • Custom formed to meet your exact needs.
  • 10-foot rolls reduce on-site labor and enable a quick, quiet and easy installation.
  • A robust top performance layer (or “thickness over scrim”) of the PVC membrane exposed to weather, the environment, chemicals and human activity provides exceptional reflectivity, flame retardance, and UV and chemical resistance.
  • Weft-inserted (or “woven”) anti-wicking scrim with a density of 18 by 9 threads per inch provides superior strength and puncture resistance.
  • A complete line of Duro-Tuff custom-fabricated accessories is available, reducing rooftop labor at critical transition areas.

 

 

Elevate Rubbergard EPDM Roofing System

Since its introduction in 1980, Elevate’s RubberGard™ EPDM system has dominated the single-ply roofing market through its proven performance, durability and flexibility over a wide range of building types.

The RubberGard EPDM system has delivered more than three decades of commercial roofing success by building upon a heritage of innovation in rubber polymer technology. The versatile membrane offers a variety of installation options including fully adhered, ballasted or mechanically attached that deliver superior long-term weatherability and exhibit exceptional wind-uplift resistance.

 

FEATURES AND BENEFITS

  • Energy Savings

  • Lightweight Design For More Versatility

  • Longevity

  • This system can be installed on any material; decks, porch, overhang, residential, commercial...

  • This system’s thermal performance can reduce energy consumption. A 30-year adhered RubberGard EPDM roof system can reduce costs up to 25% than other roof systems.

  • RubberGard EPDM membrane weighs less than half a pound per square foot making it easier to handle and maneuver when installing and transporting.

  • RubberGard EPDM membrane can last up to 50 years and the cost to remediate and extend its life can be as little as 5% of the cost of a new roof.

       

Applications

  • Commercial

  • Government

  • Hospitals and Universities

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Industries We Serve

Churches & religious facilities

Schools & educational buildings

Municipal buildings

Multi‑family & HOA properties

Retail & office buildings

Historic structures

System Considerations and Planning Guidance

Successful commercial roofing projects start long before installation. Commercial buildings have unique structural, operational, and regulatory needs, and a well‑planned approach ensures durability, safety, and long‑term value. This guidance helps owners, managers, and boards make informed decisions from the very beginning.

 

Key Planning Factors

  • Building use and occupancy: Schools, churches, multi‑family buildings, and municipal facilities each have different operational constraints and safety requirements.

  • Existing roof structure: Decking condition, load capacity, ventilation pathways, and previous repairs all influence system selection.

  • Material performance expectations: Longevity, impact resistance, fire rating, and aesthetic goals vary by property type and budget.

  • Weather and environmental exposure: Wisconsin freeze–thaw cycles, wind zones, and UV exposure demand materials engineered for harsh climates.

  • Code and manufacturer compliance: Proper underlayments, flashing, ventilation, and fastening patterns are essential for warranty protection and inspection approval.

  • Operational continuity: Planning around business hours, school schedules, or tenant occupancy minimizes disruption and maintains safety.

  • Budgeting and lifecycle costs: Upfront price matters, but so do maintenance needs, energy efficiency, and long‑term replacement cycles.

 

Project Planning & Execution

  • Comprehensive inspection: Documenting slopes, penetrations, ventilation, and structural conditions ensures accurate scopes.

  • Clear, itemized proposals: Transparent pricing and options help boards and managers make confident decisions.

  • Safety and site management: OSHA‑compliant practices, controlled access zones, and daily cleanup protect occupants and visitors.

  • Communication and scheduling: Regular updates, coordinated timelines, and minimal disruption to operations.

  • Final documentation: Warranty registration, photo reports, and maintenance recommendations for long‑term performance.

Commercial Flat Roof Replacement