A Complete Guide to Commercial Roofing in Southern Illinois

Jun 18, 2025 | Blog, Commercial Roofing, Modified Bitumen Roofing, TPO Roofing

The best roofing system for your building depends on durability, energy efficiency, and maintenance requirements. Here’s a look at the most widely used materials in the region.

EPDM Roofing: A Durable and Cost-Effective Choice

Ethylene Propylene Diene Monomer (EPDM) is a synthetic rubber membrane that has been a trusted commercial roofing solution for decades. It’s cost-effective, flexible, and can last up to 30 years when properly maintained.

  • Resistant to UV exposure and extreme temperatures
    Ideal for fluctuating weather conditions common in Southern Illinois
    Relatively low maintenance and cost-efficient

Best for: Warehouses, office buildings, and retail centers with low-slope roofs.

TPO Roofing: Energy Efficiency Meets Durability

Thermoplastic Polyolefin (TPO) is a single-ply roofing membrane known for its reflective surface and energy-saving properties.

  • Reduces cooling costs with its white, heat-reflective surface
    Resists punctures, mold, and dirt accumulation
    Cost-effective and durable for long-term performance

Best for: Buildings with high sun exposure, restaurants, and businesses aiming to lower energy bills.

Modified Bitumen Roofing: Strong, Flexible, and Waterproof

This asphalt-based roofing system is reinforced with modern materials for improved durability and waterproofing.

  • Highly resistant to foot traffic and weathering
    Expands and contracts with temperature changes without cracking
    Superior waterproofing capabilities for flat and low-slope roofs
  • Best for: Industrial facilities, apartment complexes, and buildings with heavy rooftop equipment.

Metal Roofing: The Long-Term Investment

Metal roofing stands out as one of the most durable and sustainable commercial roofing options.

  • Lasts 40+ years with minimal maintenance
    Fire-resistant and highly durable against wind and impact
    Reflective coatings help reduce cooling costs

Best for: Manufacturing plants, agricultural buildings, and commercial structures in storm-prone areas.

Choosing the Right System for Your Business

Each roofing material offers distinct advantages, and the best choice depends on your budget, energy efficiency goals, and building type. A local roofing professional can help you weigh the pros and cons to ensure your investment lasts.


Key Considerations When Choosing a Commercial Roof

Selecting a commercial roof isn’t just about picking a material—it’s about planning for long-term protection. Here are the most important factors to keep in mind:

1. Weather Resistance: Can Your Roof Handle Southern Illinois’ Climate?

Southern Illinois faces hot summers, severe storms, and occasional freezing temperatures. Your roofing system must be able to withstand these conditions.

✔️ Heat & UV Exposure: TPO and metal roofing reflect sunlight to reduce cooling costs.
✔️ Storm Protection: Modified bitumen and EPDM resist wind damage and water pooling.
✔️ Winter Durability: Metal and modified bitumen can handle freeze-thaw cycles without cracking.

2. Energy Efficiency: Keep Cooling Costs in Check

With rising energy costs, businesses need roofing solutions that help regulate indoor temperatures.

✔️ TPO and metal roofing reflect heat, reducing energy bills.
✔️ Insulated roofing systems improve year-round efficiency.
✔️ Some energy-efficient roofs qualify for tax incentives and rebates.

3. Maintenance and Longevity: Plan for the Future

The lifespan of your roof depends on installation quality, material durability, and routine maintenance.

✔️ Low-maintenance choices: Metal roofing requires minimal upkeep.
✔️ Routine inspections catch small issues before they become costly problems.
✔️ Repair vs. replacement: Some materials, like modified bitumen, may need more frequent maintenance compared to TPO or metal.

4. Compliance with Illinois Building Codes

Roofing projects must meet state and local building regulations to ensure safety and efficiency.

✔️ Fire safety standards require certain materials for commercial buildings.
✔️ Wind uplift ratings ensure roofs can withstand severe storms.
✔️ Drainage solutions are essential for low-slope and flat roofs to prevent water damage.

Consulting a Southern Illinois roofing expert ensures that your new roof meets all necessary compliance and safety standards.


Why Partnering with a Local Roofing Expert Matters

Working with a Southern Illinois-based commercial roofing contractor provides advantages that out-of-town companies simply can’t match.

1. Local Weather Expertise

A local contractor understands how heat, storms, and seasonal changes affect commercial roofs. They can recommend materials that perform best for the region’s specific climate.

2. Knowledge of Illinois Building Codes

A trusted local roofer ensures your installation meets state and municipal regulations, avoiding compliance issues and costly fines.

3. Access to High-Quality Materials & Warranties

Local contractors have established relationships with reliable suppliers, ensuring your business gets top-tier roofing materials backed by manufacturer warranties.

4. Fast Response Times for Repairs and Maintenance

Storm damage? Emergency leak? A local roofing company can respond quickly, minimizing downtime and protecting your property from further damage.

5. Supporting Local Businesses = Personalized Service

Unlike large national roofing chains, local contractors rely on their reputation in the community. That means better customer service, direct communication, and a commitment to quality.


The Right Local Partner Makes All the Difference

Your commercial roof is a major investment, and working with the right roofing professional ensures it lasts.

Whether you need a new roof, repairs, or a routine maintenance plan, our team is here to help.

Get a Free Commercial Roofing Consultation Today

Contact us today to schedule an inspection or learn more about our comprehensive commercial roofing solutions.Let’s find the best roofing solution for your Southern Illinois business!

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L. R. M.

"Highly Professional"

Your crew always displayed a high level of professionalism. I know how fortunate I am to have a good job ...
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L. R. M.

"Highly Professional"

Your crew always displayed a high level of professionalism. I know how fortunate I am to have a good job done in such a timely manner, even though the weather did not want to cooperate.
L. R. M.
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Mark J.

"Excellent Service"

I want to express my thanks to the entire Jewett Roofing team … the service provided was nothing short of excellent. The crew was...
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Mark J.

"Excellent Service"

I want to express my thanks to the entire Jewett Roofing team… the service provided was nothing short of excellent. The crew was very courteous and considerate. Communication was frequent and clear throughout the project.
Mark J.
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Deborah C.

"It was a pleasure"

The entire process, from quote to finish, was a pleasure. All of the Jewett Roofing employees were professional ...
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Deborah C.

"It was a pleasure"

The entire process, from quote to finish, was a pleasure. All of the Jewett Roofing employees were professional and knowledgeable about the product and the installation. We have experienced no difficulties and would certainly make the same decision if we had to do it again!
Deborah C.
Deborah C.
Theresa S.

"Whether a large or small project,"

close to home or many miles away, we can rely on the crew at Jewett Roofing ...
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Theresa S.

"Whether a large or small project,"

close to home or many miles away, we can rely on the crew at Jewett Roofing to assist us in evaluation of roof systems. They are able to provide roof advice on potential building purchases or existing roof issues. Their team is professional, knowledgeable and responsive.
Theresa S.
Theresa S.

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