Commercial Roofing in Schaumburg: A Small-Building Guide
Commercial roofing: Schaumburg's small business buildings are almost all flat. The strip retail along Golf Road and Roselle Road, the small office buildings around Woodfield, the light industrial in the parks along Meacham, the restaurant and dental buildings on every corner — nearly all of them sit under a membrane, not shingles. If you own or lease one and the ceiling tiles are staining, this is the short version of what is on the roof, what the options are, and what they typically cost. It is written for the owner of a 3,000 to 15,000 square foot building, not a warehouse; larger commercial roofs are a different trade with different contractors.
What is probably up there
EPDM. EPDM roofing is the black rubber sheet, glued down or held with ballast (river rock). It went on most small commercial buildings in the northwest suburbs from the 1980s through the 2000s. It lasts 20–30 years and fails at the seams, where the seam tape or adhesive lets go, and at the flashings around HVAC curbs and drains.
TPO. The white, heat-welded membrane that has been the standard for new and replacement commercial roofs since the mid-2000s. It reflects summer heat, which matters over a retail space with a rooftop unit working hard in July. It lasts 20–25 years and fails at the welds if the installer's machine was set wrong, and at the flashings.
Modified bitumen. Asphalt sheets with a granule surface, torched or self-adhered, on older and smaller buildings. Lasts 15–20 years. Fails by cracking and blistering.
Built-up (tar and gravel). On the oldest buildings. If it is still up there, it is at the end.
If you do not know which you have, a photo from the roof hatch tells any roofer in ten seconds.
Commercial roofing in Schaumburg's winters
Schaumburg gets about 37 inches of snow a winter, and on a flat roof none of it slides off. For owners wondering how snow and ice impact flat commercial roofs, it comes down to three places. Drifts pile against parapet walls and behind rooftop units, so the load concentrates where the roof was never meant to carry the most. Meltwater heads for the drains and scuppers, and if they are clogged with leaves or iced over, it ponds and refreezes. And dozens of freeze-thaw cycles a winter work water into any open seam, blister or cracked flashing, which is why a leak that was a drip in November is a stained ceiling grid by March.
The practical list is short: have the drains and scuppers cleared before December, have the seams and curb flashings looked at in the fall, and after a heavy snow have someone check the drift spots against the parapets and units. Do not let staff shovel a membrane with a metal shovel or chip ice off it; both cut the roof.
Storm damage on a flat roof
Commercial roof storm damage around here is mostly hail and wind. Hail can bruise modified bitumen and crack older, brittle membranes, and it dents rooftop unit fins and metal coping, which is often the easiest place to see it. Straight-line wind lifts membrane at the edges and peels back perimeter flashing and coping, and a lifted edge lets the next storm get under the whole field.
After a storm, photograph what you can safely see from the roof hatch and the ceilings under the edges and units, call your insurer, and get a written repair estimate from a licensed roofer. Coverage and deductibles on a commercial policy vary, so check your policy and ask your agent. The adjuster decides what's covered; in a dispute, a public adjuster licensed by the Illinois Department of Insurance can represent you — ask your agent or an attorney. The storm damage page covers the residential side of the same process.
Repair, restore or replace
Repair when the membrane is under 15 years old and the leak is at a seam, a drain, a curb or a penetration. A commercial roof repair in Schaumburg is typically $400–$1,500 per location. Most leaks over a tenant space are one failed flashing at one rooftop unit.
Restore when the membrane is 15–20 years old, still mostly sound, but with seams going and the surface chalking. A restoration is a cleaning, seam repair, and a fluid-applied silicone or acrylic coating over the whole roof. It runs $3–$6 per square foot and adds 10–15 years, and it can sometimes be expensed rather than capitalized — ask your accountant. It only works if the insulation under the membrane is dry; a moisture scan first tells you.
Replace when the membrane is at the end, the insulation is wet, or there are more patches than original roof. A new TPO or EPDM system with new insulation is $8–$14 per square foot on a small building, so a 6,000 sq ft roof runs about $50,000–$85,000. Ask your village's building department whether a replacement has to bring the insulation up to current energy code; on a building with two inches of wet 1985 insulation, that can be a real part of the cost.
Who owns the problem
Read the lease. In most triple-net leases the tenant maintains the roof; in most gross leases the landlord does. Repairs and replacement are often split — tenant repairs, landlord replaces — and the argument about whether a $12,000 restoration is a repair or a replacement is a common one. Get a written assessment that says which it is before anyone argues, and have your attorney read the lease language if the money is real.
Costs at a glance
| Job | Small commercial, Schaumburg |
|---|---|
| Leak repair, one location | $400 – $1,500 |
| Annual inspection and maintenance | $300 – $800 |
| Silicone or acrylic restoration | $3 – $6 per sq ft |
| TPO or EPDM replacement with insulation | $8 – $14 per sq ft |
| Moisture scan | $300 – $900 |
Those are typical market ranges, not quotes.
What to ask a commercial roofer
- The roofer's Illinois license number, and whether the license covers commercial work. Check it with the IDFPR license lookup and your village's building department.
- Insurance certificates naming the building owner.
- Manufacturer certification for the membrane they propose. Longer membrane warranties generally require an installer certified by that manufacturer, so ask what the proposed warranty requires.
- A moisture scan before a restoration is quoted.
- Whether the rooftop HVAC units will be lifted or flashed around, and who coordinates with the HVAC contractor.
- How tenants will be affected: fumes from adhesives, noise, and whether the parking lot is needed for the crane or the dumpster.
Where a small-commercial roofer fits
The small end of commercial roofing here is strip retail, offices, restaurants and small industrial buildings under about 10,000 square feet — repairs, restorations and replacements. Plenty of roofers who handle residential flat sections take this work too. Above that size, look for a large commercial contractor. The same split applies to commercial roofing in Elk Grove Village's industrial parks: a small flex building there is the same job as a Schaumburg strip center, and a large distribution building is not. The same membranes go on residential flat sections; the flat roof page describes them, and the cost page has the residential ranges. For an owner who runs a business from one building and lives in a Schaumburg split-level, it is often the same call.
Common questions
What is TPO roofing?
TPO stands for thermoplastic polyolefin. It is a single-ply white membrane whose seams are welded with hot air rather than glued, which makes a strong seam when the welding is done right. The white surface reflects summer sun, so the space under it runs cooler. Around here it typically lasts 20–25 years.
What does EPDM stand for in roofing?
EPDM stands for ethylene propylene diene monomer, a synthetic rubber. On a roof it is the black sheet that has covered small commercial buildings in the northwest suburbs for decades. It typically lasts 20–30 years, and its weak points are the seams and the flashings rather than the sheet itself.
How long does a commercial flat roof last in northern Illinois?
Typical ranges are 20–30 years for EPDM, 20–25 for TPO and 15–20 for modified bitumen. Clear drains, fall seam checks and quick flashing repairs push a roof toward the top of its range; ponding water and ignored seams pull it toward the bottom. A restoration on a sound roof can add 10–15 years.
Can a commercial roof be restored instead of replaced?
Often, if the membrane is still mostly sound and the insulation under it is dry. A moisture scan answers the second question before anyone quotes a coating. A restoration typically runs $3–$6 per square foot against $8–$14 for a replacement, so on a sound roof it is worth asking about first.
Need roof work in Schaumburg?
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