When a commercial roof is damaged by high winds, one of the first questions building owners ask is whether the roofing warranty will pay for the damage. The answer is usually no if the wind speed exceeds the maximum speed specifically stated in the warranty—but the exact answer depends on the wording, exclusions, and type of warranty protecting the roof.
A roofing warranty is not automatically an insurance policy against every storm. Many warranties provide limited protection against manufacturing defects, workmanship problems, leaks, or specific forms of roof-system failure. Wind damage may have its own conditions or exclusions.
What Does a Warranty’s Wind-Speed Limit Mean?
Some roofing warranties specify a maximum wind speed, such as 55, 72, 90, 110, or 130 mph. If the warranty states that wind damage is covered only up to a particular speed, damage caused by winds exceeding that threshold may fall outside the warranty.
For example, if a commercial roof has a warranty providing wind coverage up to 90 mph and a documented storm produces winds above 90 mph, the manufacturer may deny a claim for damage caused by that storm.
However, the exact language matters. Some warranties exclude wind damage entirely, while others provide enhanced wind coverage through a specific warranty rider or upgraded system. The National Roofing Contractors Association notes that manufacturers differ significantly in how they address wind coverage and exclusions.
Wind Warranty Coverage Is Different From Roof Performance
A common misconception is that a roof advertised or engineered to withstand high winds automatically has warranty coverage for those same wind speeds.
That is not necessarily true.
Building codes and engineering standards such as ASCE 7 address calculated wind loads and required structural performance. A warranty wind-speed limit, on the other hand, is a contractual coverage condition. Industry guidance from IIBEC explains that warranty wind speeds should not be confused with calculated roof-system uplift pressures or code-required wind performance.
In other words, a roof may be physically capable of surviving winds higher than its warranty’s stated limit without the manufacturer being contractually responsible for damage above that limit.
Are There Exceptions?
Yes. Some manufacturers offer upgraded warranties or special wind coverage that provides broader protection. Certain roofing products may also have enhanced installation requirements that qualify them for higher wind coverage.
For example, GAF currently offers its WindProven™ Limited Wind Warranty for qualifying shingles with LayerLock® Technology, which has no maximum wind-speed limitation when the required system components and installation conditions are met.
Commercial roofing systems can also have specific wind warranties or riders negotiated as part of the roofing specification. The important point is that the enhanced coverage must actually appear in the applicable warranty documentation.
What Should Building Owners Check?
If your commercial roof has suffered wind damage, review the warranty before assuming the claim is covered. Check:
- The exact wind-speed limit stated in the warranty
- Whether windstorms, hurricanes, named storms, or other severe weather are excluded
- Whether an enhanced wind warranty or rider was purchased
- Required installation and fastening conditions
- Roof maintenance requirements
- Whether the warranty covers materials, labor, or both
- Documentation and notification requirements for submitting a claim
It is also important to determine whether the problem is actually wind damage or a pre-existing roofing defect that became apparent during a storm.
Warranty or Insurance: Which Covers Storm Damage?
For many commercial properties, property insurance—not the roofing warranty—is the primary source of protection for sudden storm damage. A roofing warranty generally addresses specific defects or failures within its contractual scope, while insurance may address covered losses caused by severe weather.
Before filing a claim, building owners should review both documents and consult the appropriate roofing professional, warranty provider, and insurance representative.
The Bottom Line
Wind damage above a roofing warranty’s stated wind speed is generally not covered unless the specific warranty provides broader or unlimited wind protection. The roof may be engineered to withstand higher winds, but engineering performance and warranty coverage are separate issues.
For commercial property owners, the safest approach is to understand the wind provisions before a major storm occurs. At Shieldline Roofing, a professional roof inspection can help identify wind-related damage, document roof conditions, and determine whether further evaluation under the applicable warranty or insurance policy may be appropriate.
Related Questions
- Does an NDL warranty cover natural disasters?
- What is the difference between design wind speed and ultimate wind speed?
- How does risk category affect the design wind speed for my roof?
- What response time is the manufacturer obligated to provide?
- Who pays for leak investigation if the cause turns out to be excluded?
- How do I determine the design wind speed for my specific Florida address?
- What role do weather station and radar data play in a claim?
- How is wind damage distinguished from pre-existing wear and tear?
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