DensDeck® StormX Prime Roof Board From Georgia-Pacific

Georgia-Pacific launched DensDeck® StormX ™ Prime Roof Board, the first high-performance gypsum roofing board that can be used to prepare commercial roofs to withstand the hazards of bumps and punctures from extremely harsh hail conditions. Classified for use in approved assemblies that meet the FM Sever standard for very heavy hail set in 2019, the product is available nationwide.

“DensDeck® StormX ™ Prime Roof Board is the first choice in our portfolio and the latest advancement in preserving Georgia-Pacific roof assemblies,” said Mikael Kuronon, director of product management, roofs, Georgia-Pacific Building Products. “If your building is in a very severe hail zone or has frequent exposure to the high humidity from hurricanes, you need a roofing sheet that can withstand attack. This new option is classified for use in approved assemblies that meet the FM Global Standard to withstand very heavy hail, making it a stronger, more durable premium roofing sheet. DensDeck® StormX ™ Prime roof panel is your roof risk reducer. “

Why DensDeck® StormX ™ Prime roof panel?

Over the past eight decades, several factors combined have increased the risk of a major storm. More people and property are on the path of the storm than ever before. An estimated 75 percent of American cities experience a hail storm annually. Since 1960, weather-related catastrophe losses have risen by 400 percent.

With the benefits of integrating DensDeck® Prime into EONIC ™ technology and innovative product development, the use of the DensDeck® StormX ™ Prime roof panel enables structures to meet the FM Global Very Severe Hail Standard while improving the protection of the assembly. DensDeck® StormX ™ is the market standard for ultimate hail defense, the outstanding choice for impact resistance and increased moisture resistance.

“The unique combination of the GP heritage, the FM-Global classification for Very Severe Hail and the extensive application applications together result in a unique premium product selection,” continues Kuronon.

DensDeck® StormX ™ Prime Roof Board is the perfect solution for structures in the Very Severe Hail Zone in Arkansas, Colorado, Iowa, Kansas, Minnesota, Missouri, Montana, Nebraska. New Mexico, North Dakota, South Dakota, Oklahoma, Texas, and Wyoming. Proprietary engineering makes it possible not only to prepare a roof for adaptation to severe weather events, but also to recover from them.

The commitment to the advancement of Georgia-Pacific continues to drive innovation. Since its invention in 1987, DensDeck® Roof Board has set new performance standards for roof assemblies. DensDeck® StormX ™ Prime combines DensDeck® Prime with EONIC ™ technology as the only gypsum roofing sheet with manufacturing specifications that include an overall water resistance of five percent by weight and a surface water absorption performance of one gram on both sides of the sheet.


¹ FM Global Very Strict Hail Standard: Under the FM Global Standard, FM Global tests roof systems for moderate and severe hail resistance to determine how the systems could fall from a 1.19 pound steel ball 2 inches by 8.1 inches or Withstand 141.5 inches. The new name, Very Severe Hail, uses an ice thrower to propel a laboratory-made ice ball 2 inches in diameter at speeds of 152 to 160 feet per second. The DensDeck® StormX ™ Prime roofing sheet is classified for use in approved assemblies that meet these stringent standards for impact resistance. Visit for the latest information on FM approvals.

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