Over the past few weeks, multiple storm systems have moved through Missouri and Illinois, bringing hail, heavy rain, and high winds across the region.
While some storms caused visible damage, many included smaller hail – often up to around 1 inch – that can still impact commercial roofing systems in ways that aren’t immediately noticeable.
For property managers and building owners across the St. Louis region and surrounding areas, now is the time to take a closer look.
Hail Damage Isn’t Always Easy to Spot
Across Missouri and Illinois, recent storms have produced hail ranging from pea-sized to quarter-sized. While larger hail often leaves obvious marks, smaller hail can still create long-term issues.
On commercial roofing systems like PVC, TPO, and Duro-Last membranes, hail can cause:
- Surface bruising or micro-fractures
- Stress at seams and welded areas
- Loosening of flashing around penetrations
- Damage to rooftop equipment like HVAC units
These issues may not lead to immediate leaks—but they can weaken the system and lead to failure during the next heavy rain or extreme summer heat.
If your property was in the path of recent storms, it’s worth having your roof evaluated.
👉 Contact Jewett Roofing
Key Areas to Check After Recent Storms
After a stretch of severe weather, certain areas of a commercial roof are more vulnerable than others.
1. Roof Surface and Membrane
Look for:
- Dents, cracks, or punctures
- Worn or stressed areas
- Displaced materials on the surface
Even small impact marks can indicate deeper damage beneath the membrane.
2. Seams and Flashing
Seams are one of the most critical components of single-ply roofing systems.
Check for:
- Separation or lifting
- Wrinkling along seams
- Damage around vents, curbs, and penetrations
In regions like Missouri and Illinois, where storms and temperature swings overlap, these areas are often the first to fail after hail.
3. Rooftop Equipment
Hail often impacts more than just the roof.
Inspect:
- HVAC units for dented fins
- Equipment housings and protective covers
- Mounting points connected to the roof
Damage here can create both mechanical issues and additional roofing vulnerabilities.
4. Drainage Systems
Storm debris combined with heavy rain can quickly create drainage issues.
Look for:
- Blocked drains or scuppers
- Debris buildup in gutters
- Areas where water is pooling
Standing water can accelerate deterioration—especially if the roof has already been weakened by hail.
Drainage issues and minor damage can escalate quickly if left unaddressed.
👉 Contact Jewett Roofing
Why Timing Matters
Spring storm patterns across Missouri and Illinois often bring multiple systems through the same area within a short timeframe.
That means a roof may experience repeated impacts—where minor damage from one storm is worsened by the next.
This can:
- Turn small issues into active leaks
- Compromise seams and flashing
- Reduce overall roof performance heading into summer
By the time damage is visible inside the building, repairs are often more extensive.
Take a Proactive Approach After Recent Storms
After recent hail activity, the biggest risk isn’t always obvious damage—it’s what goes unnoticed.
A professional inspection can help identify:
- Early-stage membrane damage
- Compromised seams and flashing
- Drainage issues before ponding develops
- Equipment damage affecting roof performance
If your property is located anywhere across Missouri or Illinois and was impacted by recent storms, now is the time to take a closer look. 👉 Contact Jewett Roofing
