On average, a flat commercial roof won’t last quite as long as a sloped roof because it is more susceptible to the elements. Flat roofs do not readily slough off water, ice, and snow. However, they are still an excellent choice for commercial buildings for several reasons. For instance, a flat roof is the only practical choice for large commercial buildings. That said, these property owners will need to plan on scheduling an inspection for a flat roof replacement more frequently than other types of roofs.
The average lifespan of a flat commercial roof
Different types of flat roofs have varying expected lifespans, depending on several factors. These might include whether it’s been treated with a roof coating (which makes it last longer) and whether small areas of damage have been promptly repaired. On average, flat roofs have the following expected lifespans.
- Flat EPDM Roof – 20 to 30 years
- Flat TPO Roof – 15 to 20 years
- Flat Metal Roof – About 50 years
- Built-Up Roof (BUR) – 20 to 30 years
Extensive rips and tears along the seams
Often, the damage due to wear and tear shows up first along the seams of the roofing material. It is the point at which two pieces of material are joined together. In this case, it’s possible to repair minor damage to a flat roof seam. However, if the damage isn’t detected and repaired promptly, a flat roof replacement will likely be necessary.
Persistent and substantial water accumulation
A flat roof appears flat to the untrained eye. However, even a flat roof will have a very slight slope to help prevent standing water from accumulating. Over time, however, the roof deck can become warped. As a result, some areas may sink in slightly, allowing pools of water to accumulate. When water is allowed to accumulate on a flat roof, more damage will quickly follow. At that point, it’s time to schedule an inspection and an estimate for a commercial flat roof replacement.
Blistering and cracking
Blistering and cracking are unique to flat roofs from years of exposure to sunlight and high temperatures. If the roof membrane appears to be cracking or developing blisters or bubbles, it’s time to call the experts.
Schedule an inspection and flat roof replacement in NC today
When commercial building owners notice the warning signs of roof failure, they turn to the local leaders in commercial flat roof replacement: Premiere Roofing & Gutters.
Our experienced crew provides commercial roof replacement in North Carolina, including both flat and sloped roofs. We specialize in EPDM, TPO, BUR, and metal roofs. We also offer flat roof coatings to increase the longevity. Based in Hickory, we proudly serve commercial building owners from Blowing Rock to Wilmington to Boone and beyond. Call today or fill out our form below to schedule your complimentary commercial roof inspection and commercial roof estimate.