When it comes to commercial roofing systems, one critical factor to consider is wind resistance. High winds can cause significant damage, leading to costly repairs and safety hazards. In the last several months, we have seen evidence that severe storms (such as hurricanes) can be quite unpredictable. In fact, these storms are making their way beyond Florida, Texas, and Louisiana and affecting states well inland.

In this article, we’ll explore various roofing systems designed to withstand strong winds so that commercial property managers can be properly prepared for the unexpected.

Roofing Options to Mitigate Wind Damage

Commercial roofing is generally designed to withstand extreme weather, but here are some of the roofing systems most capable of providing wind resistance.

TPO (Thermoplastic Olefin): TPO roofing is a popular choice for commercial buildings, and it is known for its durability and energy efficiency. Its single-ply membrane is lightweight yet robust, offering resistance to punctures and tearing. TPO roofs can be mechanically attached, which helps secure them against high winds.
EPDM (Ethylene Propylene Diene Monomer): EPDM is another single-ply membrane widely used in commercial roofing. Its rubber-like properties provide excellent flexibility and withstand extreme temperatures and weather conditions. EPDM roofs can be ballasted, fully adhered, or mechanically fastened. The fully adhered method is particularly effective in windy environments, as it minimizes the risk of the membrane lifting off during high wind scenarios.
Modified Bitumen Roofing: Modified bitumen systems are comprised of asphalt and polymerized rubber, enhancing durability and flexibility. These roofs can be torch-applied, cold-applied or self-adhered. The self-adhered option provides a solid bond to the substrate, reducing the chances of wind uplift.
Metal Roofing: Metal roofing systems, such as standing seam or corrugated panels, are renowned for their strength and longevity. They can withstand severe wind conditions and resist fire, insects, and rot. When installed correctly, metal roofs can effectively resist wind uplift, especially when utilizing concealed fasteners and ensuring proper installation techniques. The lightweight nature of metal also reduces stress on the building’s structure.
Built-Up Roofing (BUR): Built-up roofing, composed of multiple layers of bitumen and reinforcing fabrics, provides a robust barrier against the elements. When properly installed, the layering process offers exceptional wind resistance. BUR systems are typically installed with a gravel or ballast layer on top, which adds weight and stability and further protects against wind uplift.
Spray Foam Roofing: Spray polyurethane foam (SPF) roofing is an innovative solution that offers seamless protection against wind and water. SPF is applied as a liquid that expands and hardens, creating a solid, watertight membrane. This roofing type is lightweight, energy-efficient, and can be easily repaired if damaged. Its ability to adhere to irregular shapes and surfaces makes it an excellent choice for complex roof designs, and it provides superior insulation and wind resistance.
Green Roofs: While primarily known for their environmental benefits, green roofing systems can also provide excellent wind resistance. The vegetation and growing medium add weight to the roofing system, which can help stabilize it against high winds.

Choosing the Right Commercial Roofing System

When selecting a roofing system with an eye toward wind resistance, you must consider several variables.
For instance, regions prone to hurricanes or tornadoes require more robust systems, and local building codes may dictate what you can and cannot install.

Low-slope or flat roofing systems are also different from steep-sloped roofs and may require a different solution to be optimally wind resistant.

If you are responsible for the care and maintenance of a commercial roof, consulting with an expert is the best way to choose the right solution for your particular situation. The team of experts at Unicoat Industrial Roofing has decades of experience protecting and maintaining commercial roofs across the country. Our expertise will be invaluable in determining the best course forward for your property.