Why Commercial Roofs Fail Quietly
On a flat commercial roof, small problems stay hidden for a long time. A seam opens up, water gets into the insulation, and by the time a tenant reports a stain on the ceiling, a few hundred dollars of repair has turned into tens of thousands in wet insulation and membrane replacement.
The fix is simple: inspect twice a year — once in spring after winter's freeze-thaw cycles, and once in fall before snow loads arrive. Here's the checklist we use on commercial buildings across Chicago, Oak Brook, Elmhurst, Northbrook, and the suburbs.
The Inspection Checklist
Membrane Surface
Seams, Edges & Flashing
Drains, Scuppers & Gutters
Rooftop Equipment & Penetrations
Inside the Building
Repair, Restore, or Replace?
| Condition | Typical Option |
|---|---|
| Isolated seam or flashing issues | Targeted repair |
| Aging membrane, insulation still dry | Restoration / coating to extend life |
| Wet insulation over large areas, widespread failure | Full replacement (TPO, PVC, or mod bit) |
The key variable is the insulation. If it's dry, you have options. If it's saturated, replacement is usually the only fix that lasts — which is exactly why regular inspections save money.
Document Everything
For property managers, a written report with photos does three things: it supports your capital budget planning, it gives owners a clear picture of roof condition, and it creates a record if you ever need to file an insurance claim after a storm.
How GSKI Handles Commercial Inspections
We inspect commercial roofs of every size — retail, office, industrial, and multi-unit residential. You get a written report with photos, a prioritized list of repairs, and honest guidance on whether repair, restoration, or replacement makes the most sense for your budget. Mike Garbowski personally oversees our commercial projects.
Need a Commercial Roof Inspection?
Written report with photos and a prioritized repair plan — for buildings of any size.
Schedule a Commercial Inspection