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Roofing Guide

Commercial Roofing Systems for Wisconsin Businesses

Flat roofs, low-slope systems, and commercial buildings require specialized materials and installation expertise. Here is what Wisconsin business owners need to know.

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Quick Answer

Commercial roofing in Wisconsin typically uses TPO, EPDM, or modified bitumen membrane systems. Installation costs range from $5-$12 per sq ft depending on system type and building complexity. DT Exteriors carries $2M liability insurance and specializes in commercial flat roof systems across Southeastern Wisconsin.

Commercial Roofing Systems Compared

SystemLifespanCost/sq ftBest For
TPO15-25 years$5-$8Energy efficiency, reflectivity
EPDM20-30 years$4-$7Budget-conscious, proven track record
Modified Bitumen15-20 years$4-$6Multi-layer durability, walkable
Metal (Standing Seam)40-60 years$8-$14Long-term investment, low maintenance
Built-Up (BUR)15-25 years$5-$8Heavy foot traffic, rooftop equipment

TPO Roofing — Wisconsin's Most Popular Commercial Choice

TPO (Thermoplastic Polyolefin) dominates commercial roofing in Wisconsin for good reasons:

  • Heat-welded seams — Stronger than the membrane itself, critical for Wisconsin's freeze-thaw
  • Energy Star rated — White reflective surface reduces cooling costs up to 30%
  • Chemical resistant — Handles grease, oils, and restaurant exhaust better than EPDM
  • Lightweight — Doesn't add excessive load to existing structures
  • Code compliant — Meets all Wisconsin commercial building codes
Commercial Owners: DT Exteriors provides free roof condition assessments for commercial properties. We'll document the current condition, identify problem areas, and give you a maintenance plan or replacement timeline — no obligation.

Commercial Roof Maintenance Programs

Commercial roofs need regular maintenance to reach their full lifespan. Our maintenance programs include:

  • Bi-annual inspections — Spring and fall assessments of membrane, seams, flashing, and drainage
  • Drain clearing — Wisconsin debris and ice create drainage problems on flat roofs
  • Seam and flashing repair — Addressing small issues before they become leaks
  • Photo documentation — Detailed condition reports for your records and insurance
  • Emergency response — Priority service for maintenance program members

Frequently Asked Questions

Depends on size and complexity. A typical 5,000-10,000 sq ft commercial roof takes 3-7 business days. We work around your business hours whenever possible to minimize disruption.

Yes. Commercial property insurance covers storm damage the same as residential. DT Exteriors handles commercial insurance claims with the same 98% approval rate. We carry $2M liability insurance for your protection.

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