Spring in Michigan is a season of fresh starts… and sudden downpours. While we all welcome the warmer temps, longer days, and green grass, spring storms can be relentless—especially for commercial buildings with flat roofs.
At BC Exteriors, we’ve seen what happens when a flat roof isn’t ready to handle spring rain, and let’s just say—it’s not pretty. From ponding water to hidden leaks and drainage failures, flat roofs face unique challenges as winter fades and spring storms roll in.
So if you’re a business owner in Southeast or Mid-Michigan, here’s what you need to know to make sure your flat roof is ready for the season ahead.
Why Flat Roofs Are More Vulnerable in Spring
Flat roofs are common on commercial buildings for good reason—they’re functional, cost-effective, and make HVAC and equipment access easier. But their low-slope design also makes them more prone to water-related issues, especially during Michigan’s wet spring months.
With snowmelt, heavy rain, and fluctuating temperatures, the conditions are perfect for trouble if your flat roof isn’t well-maintained.
Top Problems We See with Flat Roofs in Spring
- Ponding Water
When water collects on your flat roof and doesn’t drain within 48 hours, it can begin to wear down roofing materials, increase the risk of leaks, and add unnecessary weight to your structure.
What to look for:
- Pools of water that stick around long after the rain has passed
- Sagging sections or “dips” in the roof surface
- Drainage System Failures
Your roof’s drainage system—including internal drains, scuppers, and downspouts—has to be fully functional to handle spring rainfall. Debris, ice buildup, and winter wear can cause clogs or cracks.
What to look for:
- Overflowing gutters or downspouts
- Water stains or leaks near walls or ceilings
- Membrane Damage or Cracks
Freeze-thaw cycles can cause flat roof membranes (like EPDM, TPO, or modified bitumen) to expand and contract, eventually leading to cracks, bubbles, or blisters.
What to look for:
- Cracks, punctures, or bubbling on the surface
- Loose seams or flashing
- Flashing Separation
The flashing around HVAC units, skylights, and vents helps prevent leaks at critical points. Over time, flashing can pull away or degrade—especially after a rough winter.
What to look for:
- Visible gaps between flashing and roofing materials
- Signs of water intrusion near interior walls or ceiling fixtures
How to Get Your Flat Roof Ready for Spring
The best way to avoid costly repairs (or worse—a total roof replacement) is to schedule a professional inspection before spring showers are in full swing.
Here’s what we recommend at BC Exteriors:
Schedule a Commercial Roof Inspection
Our team will thoroughly assess your roof for wear, water pooling, drainage issues, and potential problem areas. We’ll give you a clear, honest report on what’s working and what needs attention.
Clear Your Drains & Gutters
We’ll make sure your roof’s drainage system is free of debris and fully functional so water can move off the roof quickly during heavy rain.
Repair Membrane Damage Promptly
If we find any cracks, punctures, or separation, we’ll handle repairs using high-quality materials and proven techniques to extend the life of your roof.
Plan Ahead with Preventative Maintenance
We offer maintenance plans to help you stay ahead of seasonal changes. Regular check-ups and minor fixes can save you thousands over time—and help you avoid those “what just leaked?” surprises.
Why Business Owners Trust BC Exteriors
As a veteran-owned company serving Southeast and Mid-Michigan, we’ve built our reputation on trust, reliability, and high-quality work. Whether you manage a small retail space, office building, apartment complex, or industrial facility, we treat your property like it’s our own.
When you work with BC Exteriors, you get:
- Clear communication
- Fast, professional service
- Experienced roofing crews
- Honest recommendations—no scare tactics
We know downtime affects your business, and we work efficiently to make sure your building stays protected, open, and operating smoothly.
Don’t Let Spring Rain Catch You Off Guard
Michigan weather is unpredictable—your roof shouldn’t be. If you haven’t had your flat roof inspected since before winter, now’s the time. Let BC Exteriors help you stay one step ahead of spring storms with a roof that’s ready for anything.
Call us or visit our home page to schedule your commercial flat roof inspection today.
Because when it comes to protecting your business, we’re on top of it—literally.