DuPont Tyvek CommercialWrap D provides superior air and moisture control, with an emphasis on enhanced drainage. A weather barrier designed with vertical grooves to provide additional drainage for commercial construction projects in wet locations. DuPont Tyvek CommercialWrap D combines the unique material science of Tyvek weather barriers with a vertically grooved surface to help channel windblown rain and other bulk water. DuPont Tyvek CommercialWrap D offers high tear and wind load resistance, nine months of UV resistance and the ideal balance of air and water protection and vapor permeability.