Your Maintenance Checklist for Commercial Roofing

Commercial Roofing Maintenance
Commercial Low Slope / Flat Roof

Commercial Roofing Inspections

When discussing roof inspections with a roofing professional, you’ll likely hear the recommendation to have them done twice a year. This suggestion isn’t motivated by the roofing company’s profit, but rather their understanding that regular maintenance and inspections can actually extend the lifespan of your roof. In fact, if your roof has a warranty, conducting biannual inspections may be necessary to keep the warranty valid.

You have the option to perform the roof inspection yourself or enlist the services of a roofing company. Doing it yourself can save you money and provide valuable learning experiences that can inform your future decisions. Regardless of who conducts the inspection, it’s beneficial to gain more knowledge about the process.

The Best Time of Year for Roof Inspections

Because weather can have an impact on your roof, it’s advisable to conduct roof inspections both before and after severe weather seasons. In our region, severe weather conditions can occur during the spring and summer, marked by heavy snowfall, hail, and frigid winter temperatures. It’s essential to consider these factors when scheduling your roof inspection.

Planning Your Roof Maintenance Checklist

If you decide to do your own roofing inspection, make sure you have a checklist. Without one, you are likely to overlook some of the elements that should be part of your inspection. A written and completed checklist should be part of your permanent business records. They will be helpful if you ever need to file an insurance or warranty claim.

Use a system to prioritize issues the come up as a result of your inspection. Items that are in good shape can be noted as such. Fair items might still be satisfactory, but they may need fixing next time. Anything you mark as poor needs to be attended to immediately. Decide whether repairs will be handled in-house or if you will call a professional. Keep in mind that although it might be cost-effective to do the repairs yourself, a compromised roof can mean a big problem for your business.

Exactly what to include on your particular checklist will depend on the type of roof you have. We recommend starting with the items listed below and adding or deleting to your own checklist as appropriate.

Roofer Installing a Modified Roofing System on a Commercial Low Slope Flat Roof

Roof Inspection Checklist

When beginning your roof inspection, before you head outside, take a look at the inside of your roof. Keep an eye out for any sign of water damage, such as mold or mildew. If you see any water stains or peeling paint, this could be a sign of a leak. If you note anything, you’ll want to be careful about checking for water damage on the outside of the roof as well. Because we can get heavy snow here in Colorado, you’ll also want to take a look at trusses and beams to note any signs of stress, including cracks or rust.

Past Repairs

Check the soundness of items that have been repaired in the past to make sure the fix is still holding and working properly. Note the repairs on your inspection list separately.


If you have skylights on the roof and flashing was required, keep an eye on these areas to make sure there are no gaps. If you see that they are pulling away from the roof, you might have some serious damage. 


Look for signs of clogged drains, such as water that has backed up, moss that has formed, or other signs like watermarks and damaged flashings and seals.

Exterior Structures

Each chimney, vent, pipe, skylight, and other equipment on your roof should have its own line on your checklist to look at separately. Look for signs of cleanliness and aging. Check for structural damage such as bent elements or missing parts.

Stairs and Railings

Check for structural soundness and damage, including loose parts and surface deterioration. This is another area where something that is overlooked can mean bodily harm to someone who needs to be out on your roof. 

Safety Signs

If you have safety signage, such as for electrical, harmful chemicals, or hot pipes or equipment, make sure these are intact and visible. If they have worn out or become ruined, be sure to replace them. Without proper signage, repairmen or others who have a reason to go on the roof could get hurt.

Expansion Joints

If you have any expansion joints on your roof, look at them closely, noting any cuts, gaps, or tears you might see.
Pipe and equipment supports. Make sure these elements are not sagging, cracked, or digging into the roof membrane. If you see any signs of failure, you will have to repair or replace these soon.


Once you’ve completed your indoor inspection, head up to the outside of the roof and take a look for dirt and debris that might have collected. These can cause drains to clog and can contribute to rot or decay on the roof. If you see any fallen branches on the roof, it’s a good idea to schedule tree maintenance for surrounding trees.

Roof Surface

Watch for signs of weathering and damage. If you have a flat roof, a low spot that has standing water can be a red flag. Check the roof membrane for blistering, abrasions, tears, and scratches. If your roof has gravel, make sure the gravel is uniform and that there are no bare spots. Metal roofs should be checked for loose or damaged panels. Check for loose or missing pieces on your shingle roof. 

Get In Touch

Don’t wait until roofing issues become costly problems. Let us help you safeguard your investment and elevate your commercial property to new heights with our top-notch roofing services. Get in touch with us today for a free inspection and experience the difference of working with Rhino Roofing LLC – your trusted partner in commercial roofing solutions.