Commercial Roof Repair Or Replacement? How to Decide

Facility managers and commercial property owners in South Florida are no strangers to intense weather. The South Florida climate is one of the most unforgiving ones for a building to be subjected to. Protecting the property from extreme UV, torrential rain, and the strong winds that come with being smack bang in the middle of a High Velocity Hurricane Zone (HVHZ) is a challenging proposition. The roofs in South Florida need to cope with these continual, daily stresses.

When you notice a leak or water starting to pool up on the roof, a decision needs to be made about whether it’s best to focus on a targeted roof repair or invest in a complete roof replacement. These decisions can often feel like a catch-22 moment because on the one hand, you could drain your entire maintenance budget, but on the other, you may leave the property open to severe structural damage if you make the wrong choice.

ABC Roofing is here to help with a succinct, practical guide in navigating the different options at your disposal. Once you’re done reading, you’ll have a better understanding of the components involved in making your decision. Thereafter, contact one of our Roofing Experts to discover the next steps for your commercial roof repair.

South Florida Factors: Roof Repair vs. Roof Replacement

Let’s start by having a look at a few factors that will weigh in on your decision. Some factors are purely strategic and will be affected by your goals as a facilities manager or property owner, while others are actually regulatory and must be adhered to when making the choice between commercial roof repair and replacement.

Most Common Commercial Roof Coverings

There are numerous roof covering options in the South Florida commercial roofing market, and each one is nuanced to deal with a specific scenario. We’ll cover them below in order of lifespan, and then provide our recommendations on when to repair and when to replace. Additionally, insurance companies are tightening their own regulations and shortening insurable lifespans for roofs are being imposed on membrane-based commercial roofs. They are forcing roof replacements in some cases where the membrane is older than 15 – 20 years to maintain coverage.

Modified Bitumen

In days gone by, tar and gravel was a staple choice for the tops of most commercial properties. As the need has arisen for more water-resistant alternatives and cleaner applications, modified bitumen is the evolved form. Made from layers of rubberized asphalt sheets, it can be attached to the roof surface with an incorporated adhesive, or torched on as with traditional tar roofing.

Lifespan	Around 15 – 20 years depending on usage and initial application
Benefits	Highly puncture resistant, tough, heavy-duty membrane
Ideal For	Properties that have extensive rooftop HVAC systems
Repair vs. Replace	Easy to patch and repair using cold applied adhesives and/or torch welding. Multiple leaks across a multi-ply membrane roof surface usually signals time to replace.

Thermoplastic Polyolefin (TPO)

Another great option for flat and low-sloped commercial roofs is this single membrane, bright white sheeting that is applied to the roof’s surface. As the TPO is unrolled along the length of the roof, typically supplied in rolls of 50 to 100 feet, the seams are heat welded together, providing a complete waterproof seal along the entire length of the roof. TPO is a great option for keeping South Florida commercial properties cool as its bright white color reflects much of the sun’s powerful UV rays.

Lifespan	Lasts anywhere from 20 – 30 years
Benefits	Reflects UV rays to keep the inside cooler; hot-air welded seams make the surface highly wind- and water-resistant
Ideal For	Properties close to the sea with a focus on green strategies and energy efficiency
Repair vs. Replace	Commercial roof repair for localized patches. If membrane seams are splitting across the entire roof, replacement is a better option.

Polyvinyl Chloride (PVC)

PVC is similarly a white single-ply membrane, but it has a special characteristic that separates it from TPO, and that is its chemical resistance. When it comes to strong cleaning chemicals, animal fats, and plant-based oils, PVC is the superior choice. It maintains a high level of water and wind resistance like TPO and also is heat welded to create a strong molecular bond between sheets of the roll.

Lifespan	20 – 30 years
Benefits	Also reflects UV rays, keeping side temperatures cool; resistant to chemicals, animal fats, oils
Ideal For	Restaurants, food processing plants, any situation dealing with harsh environmental contaminants
Repair vs. Replace	PVC maintains high weldability for the duration of its lifetime, meaning commercial roof repair has great effectiveness. Replace if wind uplift is causing wholesale damage to older brittle PVC membranes.

Standing Seam Metal Roofing

In terms of Florida’s strict wind uplift requirements for roofing, for sloped roofs especially in HVHZs, standing seam metal roofing is simply the gold standard. With the concealed fastener system that is employed to attach the metal sheets to the roof, they remain protected against the corrosive elements of water, wind, and salt air. They are extremely durable and have an aesthetic quality that makes a statement.

Lifespan	These roofs last long, from 40 – 70 years!
Benefits	Unmatched wind resistance, aesthetically sleek and modern, resistance to corrosion
Ideal For	Architectural firms, executive offices, businesses that need to make a visual statement, seafront properties exposed to the harshest wind and salt air
Repair vs. Replace	Easily maintainable since they’re so robust. Repairs are limited to flashing replacements, sealant, and trim touch-ups. Replace only if severe structural rust and corrosion have occurred.

The Restoration Alternative: Fluid Applied Coverings

A robust option for some smaller businesses to buy time is the use of fluid applied coverings. These are ideal for situations where there may be no structural issues showing but instances of water intrusion and wind uplift concerns for the roof covering. The option to seal the roof completely using a poured-on solution that cures to completely cover the roof in a single span with no seams is valuable. It’s UV resistant, UV reflective, and able to expand and contract with temperature fluctuations. ABC Roofing can assist you with any queries you may have about Silicone Roof Coatings.

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