A rainy weekend can do more than put a damper on your plans, it can reveal problems with your commercial roof that may have gone unnoticed during dry weather.
Heavy rain puts your roofing system to the test. From drainage and flashing to seams and penetrations, every component needs to work together to keep water out of your building. If your commercial property experienced significant rain recently, now is a good time to check for signs that your roof may need attention.
What Should You Look for After Heavy Rain?
1. Check for Signs of Water Intrusion
One of the clearest warning signs is water making its way inside the building. Look for water stains, damp ceiling tiles, discoloration, dripping, or unusual moisture around walls and ceilings.
Even a small amount of water intrusion shouldn’t be ignored. What starts as a minor leak can lead to damage to insulation, ceilings, interior finishes, equipment, and other building components.
2. Inspect Your Roof’s Drainage System
Commercial roofs rely heavily on proper drainage. Heavy rainfall can quickly expose problems with clogged drains, blocked scuppers, damaged downspouts, or areas where water isn’t draining properly.
After a major storm, look for areas where water is pooling on the roof instead of draining away.
Standing water can place additional stress on a roofing system and may indicate an underlying drainage issue that needs to be addressed.
3. Look for Damaged or Deteriorating Areas
Rain doesn’t necessarily cause roofing problems; it can reveal problems that were already developing.
After a storm, building owners and facility managers should be aware of areas with:
- Damaged or deteriorated roofing materials
- Open or failing seams
- Cracked or damaged flashing
- Loose or damaged roof components
- Deteriorated penetrations around HVAC equipment, vents, and other rooftop systems
- Areas of recurring ponding water
These issues can become more significant if they’re left unaddressed, particularly as additional storms move through the area.
4. Pay Attention to Your Rooftop Equipment and Penetrations
Commercial roofs have numerous penetrations and rooftop components, including HVAC units, vents, pipes, skylights, and other equipment.
These areas can be particularly vulnerable to leaks because they interrupt the roofing system. Flashing and seals around these penetrations should be inspected regularly to help identify potential sources of water intrusion.
Don’t Wait for the Next Storm to Find the Problem
The best time to identify a roofing problem is before it becomes an emergency.
If your building experienced heavy rain and you noticed water intrusion, standing water, or other changes on or around your roof, documenting the issue and having it evaluated can help prevent a small problem from becoming a larger one.
Regular commercial roof inspections are also an important part of maintaining the performance and longevity of your roofing system. A professional inspection can help identify potential issues that aren’t always visible from inside the building or from ground level.
So, Did Your Roof Pass the Rain Test?
If your commercial building made it through the weekend without any signs of leaks or drainage problems, that’s good news—but it’s still worth keeping an eye on your roof after significant weather.
And if you did notice something unusual, don’t wait until the next heavy rain to investigate it.
Cole Roofing provides commercial roofing services to help building owners and property managers protect their properties and address roofing issues before they become bigger problems.
If your roof didn’t quite pass the rain test, contact shoot us an email so we can get you in for a roof inspection: info@ColeRoofing.com