After a storm, when the clouds part and the wind dies down, you might look up at your roof and think, “Hey, the roof looks fine.” But don’t jump to conclusions.

In the world of commercial roof repair, or any roof repair for that matter, the most dangerous damage is often the kind you can’t see from the parking lot. High winds can compromise a roof’s integrity without ever peeling back a single sheet of membrane. If left unchecked, these invisible issues can lead to massive leaks, mold, and expensive structural rot.

Here is how to spot the signs of wind damage even when your roof looks like it survived unscathed.

1. The Invisible Indicators: What to Look Out For

Since commercial roofs are often low-slope or flat roofs, gravity doesn’t always show you the damage immediately. You have to look for the signs:

• The Billowing Effect: During a storm, wind can get under the roof membrane, creating a vacuum that sucks it upward. This is called wind uplift. Even if the membrane settles back down, the seal or the fasteners underneath may have popped loose. Look for bubbles or ripples in the surface that weren’t there before.
• Scouring of Granules: If you have a gravel or modified bitumen roof, look for bald spots. High winds can literally sandblast the protective granules off your roof. Without that coating, the sun’s UV rays will eat through your roof membrane in no time.
• The Interior Tell: Sometimes the best place to inspect a roof is from the inside. Check your ceiling tiles for faint yellow staining or a musty smell. Wind can drive rain horizontally into vents or under flashing that usually stays dry.

2. Spotting the Signs

Before you call in the pros, you can do a safe ground-level check:

• Check the Edges: The roof’s perimeter is the most vulnerable. Look at the metal flashing (the trim around the edges). Is it slightly bent? Are there gaps where it meets the wall? If the edges are loose, the next storm will peel the roof back like a tuna can.
• Inspect the HVAC Units: High winds can shift heavy HVAC units or vibrate them enough to crack the curb  (the seal where the unit meets the roof). If your AC seems to be sitting slightly crooked, you likely have a leak waiting to happen.
• Ponding Water: If it hasn’t rained in 48 hours but you still see deep puddles, the wind may have caused deck deflection, which is a slight sagging of the roof structure, or blocked your drainage pipes with invisible debris.

3. What to Do Next

If you suspect roof damage, do not wait for the potential leak. Once water is inside your roof insulation, the cost of a commercial roof repair triples because you aren’t just fixing a hole; you’re replacing soggy, heavy materials.

Always call the experts. A professional infrared scan can find moisture trapped under the membrane that the human eye can’t detect.

When you suspect damage to your roof after a storm, we recommend documenting everything. Take photos of any ripples, bent metal, or interior stains. This is gold for insurance claims.

Lastly, clear the drains. Ensure your scuppers and drains aren’t clogged with small debris blown in by the wind.

4. How Taves Roofing Fixes Your Roof

We don’t just slap a patch on a problem. Here’s what we do when you give us a call:

• Roof Assessment: Our roofers know what to look for after a storm. We provide thorough roof assessments so that you can rest assured that nothing is missed.
• Thermal Imaging: We use tech to find exactly where moisture is hiding.
• Membrane Re-attachment: If your roof suffered some uplift, we can often reinforce the fasteners and re-seal the seams without replacing the whole roof.
• Reinforced Flashing: We strengthen the edges so that the next windstorm slides right over.

Wind damage is a waiting game, and the roof always loses if you wait too long. If a major windstorm just rolled through your area, give your building the once-over it deserves and then call the pros.

Think your roof might have hidden damage?

Contact Taves Roofing today for a professional assessment. We’ve been protecting commercial buildings for over 25 years, and we know exactly what the wind tries to hide.