How often should commercial roofs be inspected? A straight-talking guide for small business owners

AAR Expert Wendy Marvin says protecting your roof with consistent attention will protect your business for decades to come.  

Let me be blunt with you. Small commercial property owners: If you don’t have big warranties or corporate requirements dictating your maintenance schedule, you need to read this.

Your commercial roof should be inspected monthly. Period.

Here’s the industry secret no one talks enough about: Early detection means affordable repairs. Let problems fester, and your costs don’t just increase, they skyrocket exponentially.

What’s really happening up there

You may think nothing is going on above your business. After nearly two decades in this industry, I’ve seen things that would change your mind instantly.

• Human activity – We’ve discovered people literally camping on commercial roofs. Party remnants are shockingly common as is drug paraphernalia. You’re focused on running your business assuming your roof is secure, but if there’s external access – even just a tree nearby – there’s risk.
• Debris accumulation – Debris is inevitable. Wind carries it and animals drag it up. On flat roofs especially, debris is your mortal enemy. I’ve lost count of how many soda cans and random objects we’ve pulled from downspouts after businesses experienced interior water damage. Don’t forget how ingenious animals are at finding places to stuff things for nests.  
• Structural issues – Full field inspections catch small problems before they explode. Popping plywood or nails, minor tears from friction are all easily fixed when found early, and all potentially catastrophic when ignored.  

Your essential monthly maintenance checklist 

1. Walk the entire roof – Examine seams, edges and penetrations carefully. Note where dirt accumulates as these are your low spots prone to ponding. Watch for bumps or uneven areas, especially if it’s a change from your last inspection.  
2. Check drains/scuppers thoroughly – These large, molded drains remove water from flat roofs and attract debris like magnets. Look for slime indicating standing water. Check seams to ensure they’re not cracking or separating. Spot something concerning? Schedule a professional inspection immediately.  
3. Remove ALL debris – Leaves, trash, nuts, twigs – everything should go. Bring pickers and a trash bag with you on every inspection. Make this non-negotiable.  
4. Document everything – Take dated photographs. Create maintenance reports after every inspection. Include who inspected, date and all photos. You may need to prove your diligence for warranty and/or insurance purposes. Documentation is your protection.  
5. Schedule a roofing professional to review your roof every few years (or have them do your regular maintenance if that makes you more comfortable). You’re doing well with the work, but you’re not a trained professional, and things can still be missed.

The bottom line

Regular monthly inspections aren’t options, they’re essential for maximizing your roof’s life and protecting your business. Many warranties require documented maintenance, and even without warranties, your insurance premiums may benefit from your maintenance commitment.

Your roof is a significant investment. Protect it with consistent attention, and it’ll protect your business for decades to come.