Johns Manville (JM) has debuted the DynaFast® product series developed from its first-generation ASTM D6164 DynaLastic® platforms. The new series offers an expanded array of application and fastening options for a faster installation designed to save time and manpower. The DynaFast SBS modified bitumen membranes are meant to be mechanically fastened. Together, DynaFast 180 S, DynaFast 180 HW and the DynaFast 250 HW provide a vast assortment of options to customize any commercial roofing job to the preferred specifications, including expanded fastening options, multiple application methods and longer rolls for faster installation. DynaFast is a premium product developed by JM after more than 150 years in the commercial roofing business. For more information, visit www.jm.com/roofing.