A vertically-grooved surface provides added protection against water, by enhancing drainage away from the wall assembly. DuPont™ Tyvek® DrainWrap™ is a moisture barrier designed to provide enhanced drainage in areas subject to extreme, wind driven rain. It combines the superior air and water resistance, vapor permeability and strength of Tyvek® with a vertically grooved surface, to help channel water safely to the outside. Available in 9- and 10-foot widge rolls.
WARNING:Cancer and Reproductive Harm - www.P65Warnings.ca.gov