How To Know The Life Expectancy Of Your Commercial Flat Roof

The roofing system on your commercial building is an important asset which provides significant protection for many years. When installed and maintained properly, the lifespan of a flat roof ranges from 10 to 50 years. However, each roofing material has its own life expectancy.

Here’s a look at the expected lifespan of top commercial flat roof systems:

  • TPO: Thermoplastic Polyolefin roofs consist of a single-ply membrane with reinforcing and polymer fillers. These roofing systems are environmentally-friendly and provide resistance to chemical and ultraviolet exposure. TPO roofs can last anywhere between 15 to 30 years.
  • EPDM: Ethylene propylene diene monomer (EPDM) roofs have a lifespan of 20 to 30 years. The key to the longevity of EPDM roofs is their rubber membranes, which expands and contracts to slow degradation under normal conditions. These roofing systems are lightweight, flexible, resilient, and resistant to hail and thermal shock.
  • PVC: PVC roofs have great longevity, lasting over 20 years. Due to its white color, it’s resistant to harmful UV rays which makes it ideal for sunny areas like Florida. PVC roofs are strong, resistant to the elements, and watertight.

Factors Affecting a Commercial Roof’s Expected Lifespan

While the type of roofing system used is the biggest determinant factor in a flat roof life expectancy, there are other factors playing a part in shortening or lengthening the lifespan. 

Inclement Weather

As durable as a roofing system may be, it is no match for Mother Nature. Extreme weather conditions can cause quicker deterioration of roofing material, especially heavy rain, strong winds, hail, and snowfall. Prolonged exposure to the sun causes a roofing membrane to expand and contract, leading to tears and cracks allowing water to leak into your roofing structure.

Poor Maintenance

Too often, commercial building owners skimp on basic maintenance when the roof doesn’t have any problems. No roof is maintenance-free and neglecting it will cause premature damage and wear and tear. This can end up causing extensive and costly roof issues in the future.

Routine inspection and maintenance reduce the cost of repairs and increases the lifespan of your flat roof by spotting the problems early.

Inferior Installation

Improper installation is one of the common causes of early roof failure. For instance, if the ventilation is inferior and there’s not enough insulation, moisture can get trapped inside, which can lead to rot, mold, and mildew development. Incorrect waterproofing can also lead to severe and expensive leak problems.

When it is time for a new commercial roof or repair work, choosing an experienced, qualified roofing contractor can save you from extensive repairs and premature roof replacements down the line.

For business owners in Tampa, Imperial Roofing is here to help. If you have questions or concerns about your flat roof, contact us today!