Tyvek DuPont 4 in. W X 75 ft. L Flashing Tape

DuPont flashing tape helps protect the heads and jambs of rectangular doors and windows from air and water intrusion. Wind-driven rain and outdoor air can find their way into walls around windows and doors. By helping to seal the building envelope, self-adhered DuPont Flashing Tape can help reduce the risk of water damage, increase building comfort and improve energy efficiency.