How long will a flat roof last? The answer depends on several factors, some of which are outside of the roof itself. For instance, in Troy, the climate can produce a significant amount of wear and tear on a building. How well you maintain the roof will determine in protective power and long lasting ability. And, of course, it depends on what type of flat roof you have.

For instance, we install TPO and PVC roofs, Duro-last systems, standing seam, single ply, tar, BUR, rubber roofs, TPO and EPDM roofing materials. Although all of these roof types serve the same purpose, they’re made of different materials and are implemented using various methods.

How Long Will a Flat Roof Last?

Assuming your flat roof was installed correctly and is well-maintained and cleaned on a regular basis, here’s how long you can expect the following types of flat roofs to last:

Metal Flat Roof (Standing Seam): 40+ Years

Standing seam metal roofs have a raised interlocking seam which joins one panel to the next. Roofing Contractors use metal roofs for both commercial and residential applications.

Built-Up Flat Roof: 15 Years

A Built-Up Flat roof membrane incorporates several levels of tar and gravel. They are fashioned using alternating layers of reinforced fabrics and bitumen.

Modified Bitumen Flat Roof: 20 Years

To prevent leaks from coming through the roof, many property owners use modified bitumen. It is virtually impenetrable to moisture because Engineers designed it with synthetic rubber, PVC material, and modified bitumen.

EPDM Flat Roof: 30 Years

Rubber roofs, AKA, EPDM are popular with roofing contractors. They are extremely durable and provide a solid blanket over the roofing system that protects for thermal heat, high winds, and torrential downpour.

TPO Flat Roof: 20 Years

Thermoplastic Polyolefin (TPO) is a single-ply membrane that is specifically designed to reflect thermal rays. It’s often white in color and is attached to the roof using an adhering substance. Manufacturers combine ethylene-propylene and polymerized rubber to create the membrane.

If you are looking for professional installation, repair, or ongoing maintenance for your commercial flat roof in Troy or the surrounding Central North Carolina area, then contact Montgomery, Contractors, Inc. at (910) 220-2172 or email us at We’re here when you need us!