Flat and low-slope roofs are the standard for commercial buildings — and they require specialized materials and expertise that differ significantly from residential roofing. TPO (thermoplastic polyolefin) has become one of the most popular commercial roofing membranes for good reason: it’s durable, energy-efficient, and cost-effective.

Martin Exteriors provides TPO and flat roof installation, repair, and maintenance for commercial properties throughout Rockford, Roscoe, and Northern Illinois.

What Is TPO Roofing?

TPO is a single-ply roofing membrane made from a blend of polypropylene and ethylene-propylene rubber. It’s heat-welded at the seams, creating a watertight bond that outperforms many other flat roofing systems. Key advantages include:

  • Energy efficiency — TPO’s white reflective surface meets Energy Star requirements, reducing cooling costs significantly.
  • Durability — Resistant to UV radiation, ozone, chemical exposure, and punctures.
  • Cost-effective — Lower material and installation costs compared to PVC and EPDM in many applications.
  • Flexible installation — Can be mechanically attached, fully adhered, or ballasted depending on your building’s needs.
  • Environmentally friendly — 100% recyclable at end of life.

Our Commercial Roofing Services

New TPO Installation

Whether you’re building new or replacing an aging flat roof, our crews install TPO membrane systems to manufacturer specifications with heat-welded seams for maximum watertight performance.

Flat Roof Repair

Ponding water, seam failures, punctures, and flashing issues are common on commercial flat roofs. We diagnose and repair problems quickly to minimize disruption to your business.

Roof Maintenance Programs

Preventive maintenance extends the life of your commercial roof and catches small issues before they become expensive emergencies. We offer scheduled inspection and maintenance programs tailored to your building’s needs.

Roof Coatings

For flat roofs that still have life left, a reflective coating can add years of service while improving energy efficiency — often at a fraction of the cost of full replacement.

Beyond TPO: Other Flat Roofing Options

While TPO is our most-requested commercial membrane, we also work with:

  • EPDM (rubber roofing) — A proven, budget-friendly option for many commercial applications.
  • Modified bitumen — Multi-layer systems that offer excellent waterproofing and durability.
  • PVC membrane — Similar to TPO with added chemical resistance, ideal for restaurants and buildings with rooftop grease exhaust.

We’ll recommend the right system based on your building, budget, and performance requirements.

Why Martin Exteriors for Commercial Roofing

Our commercial roofing division brings the same standards that earned us GAF Master Elite certification (top 3%) and recognition as an Inc. 5000 company. We’ve been serving Rockford-area businesses since 2003, and we understand that commercial roofing projects require minimal disruption, clear communication, and reliable timelines.


Need a commercial roofing solution? Schedule a free roof evaluation or call (815) 624-6278 to discuss your project with our commercial roofing team.