Georgia-Pacific’s DensDeck StormX Prime Roof Board, a water-resistant gypsum roof coverboard, is designed to help prepare commercial rooftops to resist impact and punctures caused by wind-borne debris as well as severe hail (defined as hail more than 1 5/8 inches in diameter). StormX is classified for use in approved assemblies meeting FM Global’s Very Severe Hail (diameter greater than 2 inches) Standard set in 2019. Contact distributors for pricing. buildgp.com
