Calgary is one of the most hail-prone cities in North America, with hailstorms causing millions in property damage every year. For commercial buildings, the roof takes the brunt of this impact — and if not addressed quickly, even minor hail damage can lead to serious structural issues, leaks, and insurance complications.
At CMProofing, we specialize in inspecting, repairing, and restoring hail-damaged commercial roofs throughout Calgary. Here’s what business owners and property managers need to know.
Common Signs of Hail Damage on Commercial Roofs
After a hailstorm, you may not always notice roof damage from the ground — but subtle issues can lead to major failures. Watch for:
- Dents or punctures in the membrane (especially on TPO, EPDM, or SBS roofs)
- Cracked or lifted flashing around vents, drains, and HVAC units
- Granule loss on modified bitumen or asphalt-based membranes
- Soft spots or moisture under the surface
- Water stains or new leaks inside the building
Even if the damage looks minor, hail can weaken your roof’s waterproofing layer, leading to faster deterioration over time.
Why Immediate Inspection Matters
Delaying repairs can lead to:
- Voided manufacturer warranties
- Denied insurance claims
- Increased water damage and mold risk
- Higher long-term repair costs
The sooner you act, the more likely you are to get full coverage through your insurance and prevent further damage.
Our Hail Damage Repair Process at CMProofing
- Free On-Site Inspection
We assess your roof’s condition using both visual inspection and moisture scanning tools. - Detailed Damage Report
You’ll receive a written assessment with photos that you can share directly with your insurance adjuster. - Emergency Leak Protection (if needed)
We can provide immediate patching or temporary membrane protection to prevent interior damage. - Full-Scale Roof Repairs or Restoration
From membrane replacements to reinforced coatings, we match your existing system and restore waterproof integrity. - Support Through the Insurance Process
We help you gather documentation, meet with adjusters, and make sure all damage is accounted for.
Which Roofing Systems Are Most at Risk in Calgary?
While all flat roofs are exposed to hail, some are more vulnerable:
- Older SBS or BUR systems with dried-out surfaces
- TPO and EPDM membranes under 60 mil in thickness
- Poorly sloped roofs with drainage issues that collect hail and meltwater
Upgrading to hail-resistant systems or adding reinforced coatings can help reduce damage in future storms.
Book a Hail Damage Inspection Today
If your building was recently hit by hail — even if there are no leaks yet — don’t wait for the problem to get worse. A fast inspection could save you thousands in repairs and protect your insurance claim.