Hail storm system resources
Built to provide protection against hail damage, and keep structures and their occupants safe.¹
GAF hail storm systems
Before the storm hits, count on FM-Approved GAF hail system solutions¹ to help protect your investment. The cost of a hail storm can cause billions of dollars in damage — and experts predict the frequency of storms to increase. According to a 2018 NASA study, steady increases in carbon dioxide in the atmosphere may significantly increase ocean temperatures, which in turn may increase the frequency of extreme storms by as much as 60% by the end of the century.²
Protect buildings, customers, and your bottom line
When you purchase or specify a GAF hail system solution, even the toughest curveballs nature can throw won’t stand a chance. GAF hail system solutions meet FM’s Very Severe Hail classification requirements — the most stringent roofing impact resistance standard.³
Our system benefits
PROTECTS AGAINST THE ELEMENTS
EASY TO INSTALL
HIGH R-VALUE
¹ Systems approved under FM 4470 - Very Severe Hail (Class 1-VSH). See FM Global Data Sheet 1-34 for more information. Visit RoofNav.com for approved assemblies.
³ GAF warranties and guarantees do not provide coverage against hail except where additional coverage is purchased for eligible jobs. Contact GAF for specific requirements. Refer to applicable warranty or guarantee, available at gaf.com, for complete coverage and restrictions.
Which GAF Hail Systems³ meets your roofing needs?
Hover to discover the layers of each system.
Discover more assemblies.
View brochureIs your building in a severe hail region?
Even if you live in an area of the country that gets moderate to severe hail, your best bet is to prepare for the most severe hail that may come your way. Reference FM Global's U.S. hail zone map5 above.
5 See FM Global Property Loss Prevention Data Sheet 1-34 (2025)
Top 5 states by number of hail events since 2024⁶
Texas
878 hail events
Kansas
495 hail events
Missouri
437 hail events
Nebraska
372 hail events
Oklahoma
339 hail events
⁶ Insurance Information Institute 2024, Facts + Statistics: Hail, https://www.iii.org/fact-statistic/facts-statistics-hail (using data sourced from the U.S. Department of Commerce, Storm Prediction Center, National Weather Service)
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Contact usAdditional hail storm resources
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