10 Commercial Roof Maintenance Tips That Save Property Owners Thousands

The single best thing you can do for your commercial property’s bottom line is keep up on roof maintenance. A roof that gets professional twice-yearly attention lasts 30 to 50 percent longer than one that gets ignored. On a $100,000 commercial roof, that math adds up fast.

Here are the 10 commercial roof maintenance tips we wish every Delmarva property owner knew.

The 10 Tips

1. Schedule Professional Inspections Twice a Year

Once in spring before hurricane season, once in fall before winter. Most reputable commercial roofers offer these inspections free or at a nominal cost. Catch small issues before they become emergencies.

2. Clear All Drains and Scuppers Quarterly

Clogged drainage causes ponding water, which is the number-one killer of flat commercial roofs. Have facilities staff (or your roofer) check every drain at least 4 times a year.

3. Inspect After Every Major Weather Event

Nor’easters, tropical systems, hailstorms, microbursts: all common on Delmarva. After any event with sustained 50+ mph wind or pea-size+ hail, do a visual walk and document any new damage.

4. Trim Overhanging Branches

Branches scrape membrane surfaces in wind. Falling limbs puncture roofs. Decomposing leaves clog drains. Keep trees at least 8 feet from the roof edge.

5. Limit Foot Traffic on the Roof

Every HVAC tech, satellite installer, and roof-walker is a potential damage source. Establish protected walkways for service personnel. Document who has been on the roof and when.

6. Address Small Leaks Immediately

A small leak today is a $300 repair. The same leak left for 6 months can become a $5,000 deck-replacement project. Speed matters.

7. Maintain Flashing Details Annually

Parapets, HVAC curbs, drains, and vents are where most roofs fail first. Inspect every flashing detail at least once a year. Reseal any cracked or pulled-away components.

8. Document Every Maintenance Visit with Photos

Build a year-over-year photo record. Year-over-year photos show degradation trends and help with both warranty claims and insurance documentation.

9. Keep Your Warranty Paperwork Accessible

Most commercial roof warranties require documented maintenance to remain valid. If you have a claim 8 years from now, you need maintenance records to prove the warranty is still in effect.

10. Plan and Budget for End-of-Life Replacement

A 30-year membrane is 30 years, not 35 or 40. Build a replacement reserve fund starting at year 15 so you have the capital ready when needed. Surprise replacements are 20 to 30 percent more expensive than planned ones.

What Does “Professional Maintenance” Actually Include?

When G and Bros does a commercial maintenance visit on Delmarva, we:

• Walk the entire roof field, photographing any anomalies
• Inspect every drain, scupper, and gutter for blockages
• Check every flashing detail
• Test seams for adhesion or weld integrity
• Look for ponding zones and document drainage patterns
• Submit a written report with prioritized findings

Total time: 1 to 3 hours depending on building size. Cost: free for most Delmarva commercial properties.

Frequently Asked Questions

How often should I have a commercial roof professionally inspected?

Twice a year minimum. Add an extra inspection after any major storm event.

What is the difference between maintenance and inspection?

Inspection identifies issues. Maintenance includes both inspection AND minor repairs (cleaning drains, resealing small cracks, replacing pipe boots). A good commercial maintenance program includes both.

Does maintenance void my warranty if a small repair is not done by the original installer?

Most manufacturer warranties allow any certified contractor to do maintenance. Workmanship warranties (from the original installer) sometimes require their team specifically. Check your paperwork.

Get on a Maintenance Schedule with G and Bros

G and Bros offers commercial maintenance programs across Salisbury, Ocean City, and the entire Eastern Shore. Twice-yearly inspections, written reports, prioritized findings, no surprise charges. Call 410-677-4975 or visit gandbrosroofing.com/contact. Read our complete commercial roofing guide or learn about the ROI of commercial roof maintenance.