Tyvek FlexWrap

Dupont FlexWrap Installation

  • Buy 6" nf flashing for 2x4 construction and 9" nf flashing for 2x6 construction projects. Dupont NF is commonly used as a window and door flashing.
  • To estimate the amount of FlexWrap needed for sill flashing, measure the rough opening width and add 1 foot.
  • FlexWrap is used as window sill tape that installs in one piece.. It is self-adhering and does not require fasteners.