As a building owner, one of the most critical aspects of your property management duties is ensuring the integrity and longevity of your commercial roof. Regular maintenance not only prevents minor issues from escalating into costly repairs but also extends the life of your roof.
This guide will help you understand the essentials of commercial roof maintenance and how to implement them effectively. From conducting routine inspections and knowing what issues to watch for your specific roof type, you’ll have everything you need to keep your roof in good shape.
Understanding Commercial Roof Maintenance
If you own or maintain a commercial property, you know that stairways, HVAC systems, and parking lots need upkeep. The roof is no different. For a roof to work the way it should you need proper commercial roof maintenance, which includes regular inspections, tidying, and repairing damage. It’s about proactive care rather than reactive repair. According to the National Roofing Contractors Association, semi-annual roof inspections and maintenance are recommended to keep your roof in its best condition.
There are various commercial roofs, each with unique maintenance needs.
Asphalt Shingles
Asphalt shingles are popular because they are easy to use and affordable. However, they can be susceptible to wind damage, curling, and tearing. Loose or missing shingles should be replaced promptly to prevent water from seeping underneath and causing leaks or structural damage.
Metal Roof
Metal roofs are a great choice for commercial roofing systems because they hold up well and last a long time. However, in areas with salty air or high humidity, the metal roof can rust, and the fasteners and seams can loosen, which may cause leaks. You can arrest the development of these issues with regular inspections.
Flat Roof
Flat roofs are a sensible and cost-effective favorite for commercial buildings. Flat roof maintenance is more manageable, and the shape of the roof provides ample areas for roof-top HVAC systems, solar panels, and more. Your roof surfaces must also be properly maintained to keep those systems in good condition.
However, flat roofs can have issues with water pooling or ‘ponding,’ leading to leaks and structural damage if not addressed. Blisters, cracks, and surface wear are other common issues that require immediate attention.
EPDM Roofs
EPDM (ethylene propylene diene monomer) is a rubber roofing material popular for its durability and resistance to weather conditions. However, over time, EPDM roofs can shrink, leading to membranes pulling away from the edges and corners of the roof, causing leaks. Regular inspection and maintenance can identify and address these issues early.
TPO & PVC Roofs
TPO (Thermoplastic Olefin) and PVC (Polyvinyl Chloride) roofs are single-ply roofing systems known for their heat-reflective properties and UV-light resistance. TPO and PVC roofs are not without problems; seams can widen, allowing for leaks, and constant sun exposure can cause the roof to become fragile. TPO is commonly used with a flat roof.
Signs of Damage
Even if you have a roof maintenance plan that includes regular inspections, you should still watch for signs of damage between assessments. These include:
- Roof Leaks and Ponding Water: If you notice water accumulating on your roof after a rainstorm, it could be a sign of poor drainage, leading to leaks and structural damage.
- Cracks and Blisters on the Roof Surface: These can indicate aging, wear, or damage that could allow water to seep in, causing leaks and further damage.
- Sagging Areas on the Roof: Water damage or a structural breakdown can create areas of drooping and softening of the roof. Any sagging areas need immediate repair and attention.
- Moisture in the Interior: Signs of moisture inside your building, such as water stains or mold growth, can indicate a leaking roof.
- Bubbles on the Roof: Trapped water can create bubbling on the roof’s outer surface. They can burst and lead to leaks or tears in the roofing material.
- Rising Energy Bills: A sudden spike in energy costs can mean insulation or structural problems, causing heat or cool air to leak through the roof. Not only will this increase your energy bill year-round, but it can also put a strain on your HVAC system.
- Damage to the Roof Flashing: Flashing is installed around roof protrusions to prevent water from entering. Damage to the flashing can lead to leaks.
- Clogged Drains: Blocked drains can cause water to pool on your roof, increasing the risk of leaks and structural damage.
- Bad Smells and Odors: A musty or moldy smell in your building could indicate water damage from a roof leak.
Key Steps in Commercial Roof Maintenance
Routine Inspections
Schedule a commercial roof inspection at least once every six months. Planning inspections in advance ensures that roof maintenance isn’t overlooked.
A professional roofer can visit your property to look at your commercial roofing system and determine its condition. They can conduct a thorough inspection to ensure no significant problems must be addressed to keep the building compliant with local building codes and regulations. They can also diagnose potential issues and prevent more severe damage in the long run.
Ground inspections alone aren’t necessarily enough to properly diagnose all potential issues. Extend the life of the roof by hiring a professional commercial roofing contractor to do inspections and maintenance.
You’ll want to inspect from the ground, from the roof itself, and, if possible, from the attic directly below the roof. Closely examining these areas will ensure you can spot any issues with your roof, regardless of type or age.
Cleaning and Debris Removal
If your business operates in an area with many storms – whether heavy rain or heavy winds in the spring and summer or snow and ice in the fall and winter – it’s a good idea to check the roof after any major storm or other extreme weather event. Post-weather event checks can help you catch any potential problems or roof leaks earlier.
Routine Maintenance and Minor Repairs
Address any minor damage promptly to prevent them from becoming major issues. Problems include replacing damaged shingles, repairing rubber seals around roof vents, securing flashing, or sealing minor leaks.
Preventative Measures
Implement measures like pruning nearby trees to prevent damage from falling tree limbs and branches. After heavy snow, clear it from the roof to keep the roof’s load within its limit.
How Long Should a Commercial Roof Last?
The average lifespan of your commercial roof depends on the materials used, the installation, and the frequency of maintenance. Investing in proper commercial roofing maintenance is the best way to ensure you get the longevity you need.
- Asphalt shingle roofs generally last 20-40 years.
- Metal roofs last 30-45 years
- EPDM roofs last 22-35 years
- TPO roof systems last 22-30 years
Regular Inspections and Maintenance are Key to Longevity
No matter the type, the roof will be one of the most expensive and long-term investments you can make for your commercial property.
If you must shut down to replace an entire roof after storm damage, you lose money while the building is closed and have to pay for the extensive work.
Spending time and money on inspections and routine maintenance isn’t just a wise business decision – it’s what’s best for employees and customers. It keeps everyone safe and saves time and money in the long run.
