Signs of Commercial Roof Damage You Shouldn’t Ignore This Fall

Fall in Glenview means crisp mornings, golden leaves—and the last chance to inspect your commercial roof before winter. Small problems left unchecked now can lead to major damage come January.

At Mighty Dog Roofing of Glenview, we help property owners spot the warning signs of roof trouble before the snow flies. Here’s what to watch for this fall.

1. Ponding Water After Rain

Flat roofs are notorious for poor drainage. If you see water pooling more than 48 hours after a storm, your slope or drainage system may be compromised.

Over time, standing water can:

• Degrade membranes
• Add structural load
• Breed algae or mold

2. Membrane Cracks or Splits

Freezing temperatures cause materials to expand and contract. Small membrane flaws can turn into large fissures over winter, leading to interior leaks.

Look for:

• Bubbles or blistering
• Open seams
• Exposed insulation

3. Loose or Missing Flashing

Flashing (metal trim around edges and penetrations) is your roof’s first line of defense. Common issues:

• Rusting or corrosion
• Uplift from wind
• Poor sealant application

These are often the first failure points in a winter leak.

4. Interior Signs: Stains, Smells, or Mold

If you notice:

• Ceiling discoloration
• Unexplained musty odors
• Visible mold growth

…it may be due to unseen roof leaks or ventilation issues. Fall is your best window to investigate before moisture gets trapped for months.

5. HVAC or Equipment Vibration

Commercial rooftops often house heavy mechanical equipment. Vibrations, shifting, or leaking from these units can:

• Damage roof membranes
• Dislodge flashing
• Lead to premature failure

We inspect around all rooftop systems during seasonal roof checkups.

Don’t Let Winter Magnify Small Problems

Fall is Glenview’s most overlooked season for roof maintenance—but it’s the ideal time to catch problems early.

Our commercial roofing team offers:

• Full fall inspections
• Infrared moisture scans (if needed)
• End-of-season repairs to prevent snow-related damage

Don’t wait for a January emergency. Book your commercial roof inspection now with Mighty Dog Roofing of Glenview.