Commercial Roofing in Chicago, IL

What Is Commercial Roofing and Why Does Chicago Need It Done Right?

Commercial roofing covers flat or low-slope roofs on apartment buildings, condos, retail spaces, warehouses, and offices in Chicago. Unlike steep-slope residential roofs, these systems must handle ponding water, heavy snow loads, and thermal expansion from our 90°F summers to -20°F winters. Chicago Roofing Team has installed over 400 commercial roofs across neighborhoods like Lincoln Park, Wicker Park, and Hyde Park since 2002. We use fully adhered and mechanically fastened membranes that meet Chicago building codes and wind uplift requirements.

What Materials Do We Use for Commercial Roofing in Chicago?

TPO (Thermoplastic Polyolefin) – The Most Popular Choice

TPO is a single-ply membrane that reflects UV rays, lowering cooling costs by up to 30% in summer. We install 60-mil and 80-mil TPO from manufacturers like Carlisle and GAF. Cost ranges from $6.50 to $9.50 per square foot installed in Chicago. Expect a 20- to 25-year lifespan with proper maintenance.

PVC (Polyvinyl Chloride) – Best for Chemical Resistance

PVC membranes resist grease, oils, and chemicals—ideal for restaurants and commercial kitchens. It’s also fire-resistant and stands up to Chicago’s freeze-thaw cycles. Installation runs $7.00 to $10.00 per square foot. Lifespan: 20–30 years.

Modified Bitumen – Built-Up Roofing’s Modern Cousin

Modified bitumen is an asphalt-based system with fiberglass or polyester reinforcement. It’s torch-applied or cold-adhered, offering excellent waterproofing for flat roofs. Cost: $5.50 to $8.50 per square foot. Lifespan: 15–20 years. Common on older Chicago apartment buildings.

Metal Roofing – Standing Seam for Commercial Properties

Standing seam metal roofs (steel or aluminum) shed snow easily and last 40–50 years. Cost: $9.00 to $14.00 per square foot. We install 24-gauge Galvalume panels that resist Chicago’s corrosion from road salt and lake-effect moisture.

How Much Does Commercial Roof Replacement Cost in Chicago?

For a typical 2,000-square-foot commercial roof in Chicago, expect total costs between $11,000 and $28,000 depending on material, tear-off complexity, and number of penetrations (HVAC units, skylights, vents). Here’s a breakdown:

• TPO: $13,000–$19,000
• PVC: $14,000–$20,000
• Modified bitumen: $11,000–$17,000
• Metal standing seam: $18,000–$28,000

We provide free, itemized estimates that include disposal fees, permits, and a 10-year workmanship warranty.

Signs Your Chicago Commercial Property Needs a New Roof

• Pooling water that doesn’t drain within 48 hours after rain
• Visible blisters, cracks, or alligatoring on the membrane surface
• Interior water stains or mold near ceiling HVAC vents
• Granules from modified bitumen clogging downspouts
• High energy bills from poor insulation or UV damage
• Roof age exceeding 15 years for modified bitumen or 20 years for TPO/PVC
• Loose or missing flashing around parapet walls and rooftop units

Our Step-by-Step Commercial Roofing Process in Chicago

1. Free Inspection & Estimate – We inspect your roof’s decking, insulation, and drainage. We measure with drone technology for accuracy and provide a written quote within 48 hours.
2. Permitting & Material Ordering – We pull all Chicago building permits. Materials are ordered to match your roof’s exact dimensions, minimizing waste.
3. Tear-Off or Overlay – We remove the existing roof membrane and insulation if needed. For overlays, we apply a new layer over the old system if the deck is sound. All debris is hauled away daily.
4. Deck Repair & Insulation – We replace rotted or rusted decking and install tapered polyiso insulation to improve drainage. This step prevents future ponding.
5. Membrane Installation – Our crew mechanically fastens or fully adheres the new membrane. All seams are heat-welded (for TPO/PVC) or torched (for modified bitumen) to create a watertight seal.
6. Flashing, Trim & Final Inspection – We install new metal flashing around all penetrations. A final water test ensures zero leaks. We clean the site and provide warranty documents.

Insurance, Warranties, and Chicago Climate Considerations

Chicago Roofing Team is fully licensed and insured with $2 million in liability coverage. We offer manufacturer warranties (20–30 years on TPO/PVC) plus our own 10-year workmanship warranty. Chicago’s freeze-thaw cycles can cause membrane cracking if materials aren’t rated for cold-weather installation. We only install materials rated down to 20°F and use heat-welded seams that handle thermal movement. Snow loads require reinforced decking—we calculate live loads per Chicago code to prevent collapse.

Why Choose Chicago Roofing Team for Commercial Roofing?

We’ve been serving Chicago homeowners and property owners since 2002. Our crews are trained in commercial systems, not just residential shingles. We provide detailed project timelines—most commercial roofs are completed in 3–5 days. We also handle emergency tarping and storm damage repairs from Chicago’s lake-effect snow and hailstorms. Call (312) 313-3253 for a free estimate.